# VivoKey Japan, full text Generated 2026-09-24 from https://vivokey.jp. English only. --- ## https://vivokey.jp/about-implants.html GUIDE Subdermal implants, in plain words If this is the first time you have looked into having a small device placed under the skin, this page answers the basic questions in normal language: what it really is, what people use it for, what it cannot do, and why there is more than one type. Store NFC memory Identify an ID number Prove a secure element Light up an LED in the field Attract a magnet Ask on official LINE WHAT IT IS Where it came from -> Small, no battery, powered by the reader only for the moment it is held to it. Placing a subdermal implant under the skin is what VivoKey Japan calls installation: a procedure performed by a partner physician. What is inside it? A small sealed device that sits just under the skin. It has no battery, and the wound becomes less noticeable once it has healed. What is inside it is what decides what it does, and there is more than one answer: a transponder, a secure element, an LED, or simply a magnet. The three forms below differ in material, in shape and in where they go. Only on while it is read No battery, no mobile connection and no signal it sends on its own. It receives power only for the moment a compatible reader or smartphone is held to it. How do I choose? Start from what you want to do. Share a profile or link with a tap. Fire a Shortcut or a smart home action. Stand in for a card at a door reader. Prove something is genuine. Each points to a different implant. Glass capsule Material Bioglass Inside A transponder, a secure element, and on some an LED Size 2.1 to 3.1 mm across, 14 to 15 mm long Where it goes The web between thumb and index finger The common form, and the one most people mean. A narrow cylinder couples with a reader over a short distance and in a narrow spot, which is the trade for how small it is. Flex Material Biopolymer, tested to ISO 10993 and USP Class VI as a material Inside A secure element, and a much wider antenna Size A flat plate, for example 9 x 22 x 0.4 mm Where it goes The back of the hand or the forearm Only semi flexible, so it does not go under a gripping surface such as the palm, nor across a joint. The wide flat coil couples far better with the flat coils inside phones and reader panels than a glass cylinder can, so read range and reliability are in a different class. Magnet Material Neodymium, sealed in bioglass (xG3) or bioresin (m-series) Inside A magnet. No data, no identity, nothing can read it Size A small cylinder or disc Where it goes Varies with the size of the magnet Not a chip at all. It attracts steel, which is the whole of what it does. It must be removed before an MRI, unlike the glass transponders, and it takes longer to settle, roughly six to ten weeks. WHAT IT CAN DO COMPARE PRODUCTS -> The honest answer to what you can do with one is long, because people have done a lot with them. Here is the whole list, sorted by how much work each one takes. There are a lot of these, so pick a level and the list narrows. Choose nothing and you see all of it. Works as sold Needs setting up You build it Nothing matches that. Clear a filter to see the rest. Hand someone a link, a contact card or a wifi password Works as sold Someone holds their phone to your hand and the thing you put there opens on their screen. The implant holds a short piece of standard NFC data, which you write and rewrite yourself with a phone. A URL is the usual choice, because 50 characters of address can point at a page holding as much as you like: a profile, a portfolio, a set of links, your contact details. The chip's own memory is a few hundred bytes; what it reaches is not limited by that. It works with ordinary NFC phones and needs no app on the other person's side. Which implants xSIID, NExT v2 Light up when it is read Works as sold An LED under the skin lights for the moment a reader is powering the chip. There is no battery. The light runs on the reader's own field, which is why it only appears while a reader is close. Two things make it useful rather than decorative: it tells you the read is actually happening, and it shows you where a given reader's active spot is, which saves a lot of hunting the first time you use an unfamiliar one. It is also, plainly, the reason a lot of people choose one. Which implants xSIID, NExT v2, xLED Hold small steel parts against your hand Works as sold A magnet implant is a magnet. Screws, bits and small steel parts stay put while you work. This one is not a chip. It holds no data, carries no identity, and nothing can read it. It is a neodymium magnet sealed for implantation, and what it does is attract steel. People who assemble electronics report it as the thing they use every day: the hand becomes somewhere to park a screw. It also tells you whether a piece of material contains iron, which is a small but real answer to a question that otherwise needs a tool. Note that it must be removed before an MRI, unlike the glass transponders, and settling in takes longer, roughly six to ten weeks. Which implants xG3 Open a lock you own, or one you have been enrolled into Needs setting up The reader is told your implant's number belongs to you, and after that your hand is the credential. This is the oldest use there is, and the mechanism is simpler than people expect. An access system does not care what you are; it holds a list of numbers that are allowed through. Enrollment means the administrator adds your implant's number to that list, the same act as issuing you a card. Front doors, offices, garages, safes and lockers have all been done this way. We do not help copy an existing credential onto an implant, and this matters for what you should expect. If the system's owner will enrol you, this works. If they will not, the honest answer is that it does not, and a lot of what you will read online about replacing keys is people copying cards, which is a different act with a different owner's permission behind it. Which implants Any of the transponders. The 125 kHz side of NExT v2 reaches older reader families. Open a computer without typing a password Needs setting up A small USB reader on the desk reads the implant and types the number for you. The reader behaves as a keyboard, so nothing needs to understand implants: whatever accepts typing accepts this. People use it for Windows, macOS and Linux sign-in, for a website field, and commonly as part of a password rather than all of it, typing a few characters themselves and letting the implant supply the rest. Be clear with yourself about what this is. A number that is read out and typed is convenience, not cryptography. Anyone who can read the chip has the number. For a login that should resist someone determined, the security key row below is the one you want. Which implants Any of the transponders, plus a reader such as the KBR1 Use it as a hardware security key Needs setting up The chip performs the cryptography itself, so what proves you is never read out of it. This is a different kind of thing from a number being read. The service sends a challenge, the secure element inside the implant computes an answer with a key that never leaves it, and the service checks the answer. Copying the chip does not copy the key. FIDO2 is the standard, and it is backwards compatible with the older U2F, so services that support either will work. The same secure element does one time passcodes, the six digit kind some services ask for, and it can hold the secret that unlocks a password manager. People report using it with KeePassXC across several machines, which is the shape of it: the database stays where it is, and the thing that opens it is in your hand. Which implants Apex Start something on your own phone or Mac with a tap Needs setting up Your phone recognizes your own implant and runs whatever you told it to run. Shortcuts on iPhone and Tasker on Android both trigger on an NFC tag, and an implant is an NFC tag that is always under your skin. People run a route home, put the phone into a mode, open an app, send a message, fire a script on a computer over the network. The pleasing part is that the same implant can do two different things depending on who taps it: somebody else's phone opens the link you wrote, and your own phone, which recognizes the tag, runs your private automation instead. Which implants xSIID, NExT v2 Control something at home by tapping a reader You build it A reader on your wall recognizes you and your own software decides what that means. The implant is not controlling the gate. It is handing an identity to a reader, and software you run decides what to do about it. People do this with Home Assistant and similar: a gate, a garage, lights, music, a scene, whatever that software already controls. This is where the most useful idea about implants lives, and it is worth stating on its own. The capability does not have to be in the chip. The same implant at a different reader does a different thing, because the environment decides what the identity means. That is why there is no fixed answer to what an implant can do. The reader, the wiring and the software are yours to build. We supply the implant. Which implants Any of the transponders, plus a reader and software you run Sign in to servers, and sign your own files and code You build it The private key lives in the implant instead of as a file on a laptop. OpenPGP runs on the secure element, which puts an implant in the place a smartcard usually occupies. Documented use includes SSH authentication to servers and signing git commits, by a developer using it in a real workflow rather than as a demonstration. Encrypting and decrypting files and mail works the same way. What changes is where the key is. A private key kept as a file can be copied off the machine; this one cannot be read out at all. That is the whole point, and it is why this row says build: the key generation, the agent configuration and the rest of the plumbing are a developer's job, and a rewarding one. Which implants Apex The same thing again, by technology Scroll to compare -> Technology What it can do Does a phone read it? Which implants 125 kHz (LF) Stands in for the 125 kHz card or fob you already tap, where the reader family matches. No. A phone cannot read a 125 kHz implant at all. NExT v2 (the 125 kHz side) 13.56 MHz NFC, writable Holds a URL, short text or a contact card, written and rewritten by you, and fires Shortcuts on a phone. Yes, with a compatible smartphone. xSIID , NExT v2 13.56 MHz NFC, cryptographic Proves the implant is genuinely that implant, through AES mutual authentication and the Verify API. Yes, through the Spark Actions app. Spark 2 13.56 MHz, applet platform Runs applets inside the chip: FIDO2 / U2F, OTP, PGP, NFC Share, several of them at once within its memory. Yes, and what a phone can do depends on the applet. Apex The LED on xSIID, NExT v2 and the Apex Spectrum is visible light, lit by the reader's own power for the moment of the read. It is not a capability of the radio, and it is not a reason one tier does more than another. WHAT IT IS NOT Not security on its own A writable NFC implant has no secure element: anything stored on it can be read by any compatible reader held to it. Real security comes from the reader, the software and the workflow, or from Spark 2 and Apex. Not all the same A writable NFC implant, a dual-frequency access implant and Spark 2 or Apex authentication differ in what they can do and in what they reveal to a reader. Not universally compatible Reader hardware still decides. For locks, badges and 125 kHz systems, test the real environment first. Not for payment VivoKey Japan does not sell payment-capable implants. Store and transit readers run on networks controlled by the payment operators, and an implant could only pay if those operators chose to support it. Safety and FAQ WHAT TO READ NEXT Once the category makes sense, choose the page that matches your question. Compare products Prices, sizes, LED colors and the comparison table. Products -> See how installation works The five steps, the installation voucher and booking with a partner physician. How it works -> Still unsure MRI, airports, healing and the questions people actually ask. Safety and FAQ -> Before you order The acknowledgements, the age condition and the one-implant-per-order rule. Read first -> Where you can have it installed, how to order and what it costs are each answered in one place: Map and partner physician details / Read this before ordering / Every price, added up . Products and prices Safety and FAQ Ask on official LINE --- ## https://vivokey.jp/apex-manager.html APP / APEX MANAGER FOR iOS Your Apex, on your iPhone Hold your iPhone to your Apex and see what is on it: the applets, your one-time codes, your HMAC keys, your business card, your OpenPGP key and how much memory is left. Built in Japan by VivoKey Japan, in Japanese and English. Coming soon to the App Store. PLATFORM iOS 18 or later LANGUAGES Japanese / English FOR Apex DATA COLLECTED None Coming soon on the App Store Android version on Google Play WHAT IT DOES ABOUT APEX -> Each screen works with an applet that is already on your Apex. Adding applets to the chip is done in the Fidesmo app; Apex Manager is where you see and look after them. One-time codes The six-digit codes for two-step sign-in, kept on the chip instead of on the phone. Large codes, a live countdown, favourites at the top. HMAC Put a secret in slot 1 or 2. Software such as KeePassXC can then ask the chip a question that only that secret answers, so a password vault needs your hand to open. NFC business card A name, a title, contact details and a photo, written to the chip. Anyone who taps it sees your card in their browser. Other links already on the chip are kept. OpenPGP Set up and inspect the key that signs and decrypts email and files, and manage its PINs. The key itself never leaves the chip. My Device How much storage and memory is left, which applet versions you have added, and a name for each chip so you are not reading UIDs. THE APP ‹ › The screens show sample data. PRIVACY Apex Manager collects no data The app has no accounts, no analytics and no tracking. What it reads from your chip, and what you set in it, including the names you give your chips, stays on your iPhone. VivoKey Japan receives none of it. The business card A card is written to your chip as a vivokey.social link, the same format as the Android app. The card itself sits after the "#" in that link, a part a browser never sends to a server; vivokey.social, run by VivoKey Technologies, turns it back into a card inside the reader's own browser. What Apple shares with us Like every App Store developer, we can see the number of downloads and anonymous crash reports that Apple provides, under Apple's own privacy terms. Nothing in them identifies you or your chip. This section is the privacy policy for Apex Manager for iOS. For VivoKey Japan's website and services, see the privacy policy . SUPPORT Questions about the app, a chip that will not read, or something that looks wrong: ask us on the official LINE, in Japanese or English. Tell us your iPhone model and iOS version, and which screen you were on. Ask about Apex Manager on LINE All the apps --- ## https://vivokey.jp/apex.html PRODUCT / APEX Your keys, inside you Apex is a subdermal security key. Your cryptographic keys are generated on the device and used on the device, and private keys never leave it . VivoKey has no access to your keys or your data. PRICE from ¥132,000 incl. tax ANTENNAS Three ORDER Special order CHIP JCOP 4 Ask on official LINE Before you buy The most important thing, first Narrow / Module 1 year limited warranty Spectrum Limited lifetime warranty Conditions Apex is a different product family from the glass implants , and its flex antennas carry a different warranty from the Spectrum. Apex Narrow, Apex Module, and other flex products by special order: 1 year limited warranty from the manufacturer, on manufacturing defects. It is conditional on installation by a professional and on video of two specific moments: the device coming out of its pouch onto the sterile field, and the physician placing it by hand without tools. Apex Spectrum: limited lifetime warranty from the manufacturer, on manufacturing defects. Details are in the warranty section below. Read the warranty -> Not yet open for orders Physicians for Apex are still being arranged, so installations cannot be booked yet. What this means VivoKey Japan does not have confirmed physicians for Apex yet. We are working on it. Until that is arranged we cannot take an installation booking, though you are welcome to ask about the products themselves. The prices shown are settled. THE LINEUP Every antenna carries the identical chip. You are choosing an antenna and a shape, which means read range and where it can be placed. You are not choosing capability. Apex Narrow FLEX 0.4 mm ¥132,000 incl. tax RANGE PLACEMENT The thinnest of the three. At 0.4 mm it goes places the others cannot, and the small antenna means the shortest read range. Best for: The widest choice of placement Apex Module FLEX 0.8 mm ¥165,000 incl. tax RANGE PLACEMENT The largest antenna and the longest range, which is what keeps a long session from dropping. The footprint rules out the wrist and fingers. Best for: iPhone users and long operations such as signing Apex Spectrum BIORESIN 1.9 mm ¥159,500 incl. tax RANGE PLACEMENT A rigid disc with an RGB LED that lights in the reader's field. The colors change on their own and cannot be controlled. It does not flex, so the placement conversation is narrower than for Narrow or Module. Best for: Anyone who wants the LED Scroll to compare -> Spec Apex Narrow (FLEX) Apex Module (FLEX) Apex Spectrum (BIORESIN) Size about 7.5 to 8 × 28 mm about 14 × 35 mm 22 mm disc Thickness 0.4 mm 0.8 mm 1.9 mm Read range Short Long Medium LED None None RGB Price ¥132,000 incl. tax ¥165,000 incl. tax ¥159,500 incl. tax Warranty Flex implants: 1 year limited warranty Flex implants: 1 year limited warranty Bioresin implants: Limited lifetime warranty If you are undecided If you use an iPhone and expect long operations such as key storage or signing, we suggest the Module . Its larger antenna is the difference between an operation completing and dropping. The trade is footprint: placement moves to the back of the hand, the upper arm or the chest. Apex Spectrum and its LED The LED cannot be controlled. While it draws power from the reader's field it cycles through colors on its own, like a rainbow. There is a faster and a slower version, fixed at the factory. No app or setting can pick a color or change the pattern, the blinking or the speed. The LED draws power from the same coil. In the manufacturer's own bench test, the Spectrum repeatedly failed to add an applet, even with a repeater, so adding applets before installation is the reliable route. WHAT IT IS Apex puts a secure element, a chip built for nothing but authentication and cryptography, under your skin. Phones and computers get lost, stolen and updated. Apex keeps your keys outside all of that. Chip NXP JCOP 4 / Java Card 3.0.5 Certification Common Criteria EAL 6+ Memory 83,872 bytes of application EEPROM (about 82 kB), plus about 4 kB of transient RAM Applet delivery Over the Fidesmo platform, managed with the VivoKey Apex Manager and Fidesmo apps Material (Narrow, Module) Biocompatible polymer. The manufacturer describes this material, not a finished Apex, as ISO 10993 and USP Class VI tested and certified; we have not obtained the certificate. The finished Apex has not been through any certified, official or third-party testing. See testing for the one third-party report on another company's implant made with this material, and what it does not cover. Material (Spectrum) Bioresin, made from USP Class VI certified material. The manufacturer's current product documentation states the finished bioresin product is not re-tested after processing. See testing for detail. The one thing worth remembering The applets on an Apex are not cloud applications . Everything runs on the chip, and VivoKey has no access to your keys or your data. WHAT IT DOES One implant, several independent security functions An Apex is not one NFC function. It is a small secure computer that runs several independent programs, called applets, side by side. The same implant can log you in, produce two-factor codes, guard a password vault, hold an encryption key, keep a recovery secret and share your profile, all at once, as far as memory allows. What it does is decided by which applets you add. works with conditions no route 01 SECURE LOGIN FIDO2 / U2F iPhone : works Android : works PC / Mac : works Your hand becomes the hardware security key for sites that accept one. Site asks for a security key -> Hold the implant to the phone or reader -> The chip signs the challenge -> Logged in How it works, and its limits Sites that accept a hardware security key ask for it at login, and you answer with your hand. The credential is held in the secure element, and its private key does not leave the chip. Works with services that support FIDO2 security keys, such as Google accounts. Google's own help page states that NFC security keys work on iPhone with iOS 13.3 or later. Each service implements this its own way, so check the one you care about. VivoKey Japan confirmed registration and login in Safari on a Mac with a USB reader, and the same credential then worked on an iPhone. Not an Apple Account security key. Apple requires FIDO Certified keys for that, and the Apex FIDO applet has passed the test suites but is not certified. On iPhone only FIDO2 is available, not U2F. Watch out: updating the FIDO applet deletes every credential on it, and the screen says so when you add the applet. Only one FIDO applet can exist on the chip at a time. 02 SHARE A PROFILE NFC Share (NDEF) iPhone : works Android : works PC / Mac : works A phone held to your hand opens your page. No app needed. Their phone meets your hand -> The phone reads the link -> Your page opens How it works, and its limits Someone holds their phone to your hand and your website, profile or contact card opens. An NFC-capable phone reads it without an app. This part is public on purpose. Anyone who holds an NFC phone to it can read what is in NFC Share, so keys and secrets are kept in the other applets, not here. Size is chosen when you add the applet , from 1 kB to 32 kB, and changing it later means deleting and re-adding the applet, which erases the content. A 32 kB share alone takes more than a third of the chip. Only one NFC Share can exist at a time. 03 TWO-FACTOR CODES OTP Authenticator (TOTP / HOTP) iPhone : with conditions Android : works PC / Mac : works Six-digit codes from a secret kept inside the chip. Service offers an authenticator app -> The secret goes into the Apex -> Hold the implant, read the code -> Enter the six digits How it works, and its limits The familiar six-digit codes, generated from a secret stored in the chip instead of in an app on your phone. Works with any service that offers standard authenticator-app codes. Android and desktop are the documented routes. On iPhone it works through Yubico Authenticator, with some instability reported by users. Keep your recovery codes. If the secret lives only in the Apex, getting back into the account without it depends on the service's own recovery. 04 PASSWORD VAULT HMAC-SHA1 challenge-response iPhone : with conditions Android : works PC / Mac : works The master password alone no longer opens your vault. Encrypted vault -> Master password -> Answer from the Apex -> Vault opens How it works, and its limits A password manager such as KeePassXC can be set so that the master password alone does not open the vault. The software sends the Apex a challenge, the chip answers with a secret that never leaves it, and only then does the vault open. Works with KeePassXC on the desktop and KeePass2Android, as documented in the Apex authentication guide by the community. Strongbox supports this on iPhone; treat its use with an implanted Apex as reported compatibility, not a guarantee. Stolen file, known password, still locked: without the chip's answer the vault does not open. Watch out: lose the secret and the only device holding it, and the vault may never open again. Program the same secret into a second device as a backup. 05 ENCRYPT + SIGN SmartPGP (OpenPGP Card 3.4) iPhone : no route Android : works PC / Mac : works Your PGP private key stays inside the chip. Encrypted file on your computer -> Hold the implant to the reader -> The chip's private key decrypts -> File readable How it works, and its limits The Apex acts as an OpenPGP card. Keys are generated on the chip and used there. Your files stay on your computer or in the cloud, and the chip does the signing and decrypting. Works with GnuPG 2.1.16 or later with a PC/SC reader on the desktop, and OpenKeychain on Android. RSA and elliptic-curve keys, signing, decryption and authentication. No practical iPhone route. The clients that talk to this applet are on Android and on the desktop. Who it is for: people who already sign or encrypt with PGP, developers and security work. Most people will not need it. 06 SMALL SECRETS SeedKeeper iPhone : with conditions Android : works PC / Mac : works Recovery phrases and codes, behind a PIN. A secret you must not lose -> Saved into SeedKeeper -> PIN and a tap to read it How it works, and its limits Stores small secrets behind a PIN: recovery phrases, recovery codes, strong passwords, wallet descriptors, short notes. Not documents or photos: the whole chip holds about 82 kB. Official app for iPhone and Android, reading over NFC, from Satochip. On iPhone, users have reported the app closing on the second scan, the one that reveals a secret. That report was made with a card, not an implant, and the same user's Android phone worked. We have not confirmed it either way with an Apex, so Android is the safer route today. More things an Apex can do Sign crypto transactions Satochip / Keycard It is a BIP32 hardware wallet. More The wallet software prepares the transaction and the chip signs it, without exporting the key. Confirmed with Sparrow Wallet on desktop; Electrum does not work out of the box, and there is no confirmed iPhone route. The originality certificate cannot be loaded on an Apex (signing is unaffected), and Satodime is not supported. Keycard, from the Keycard / Status ecosystem, is another wallet of this kind; which client and version works with it changes over time. Open your Tesla Tesla Keycard Register the Apex as a Tesla key card, then hold your hand to the reader on the driver's side door pillar. More Key cards work with all Model 3 and Model Y, and with Model S and X from 2023 on; confirm with your own car. Adding the applet makes a permanent key, so removing it means registering the implant with the car again. An encrypted file vault on Android VivoKey Vault VivoKey's Android app encrypts files on the phone, and the key to open them comes from the Apex through FIDO2, with a PIN, even offline. More The files stay on the phone; the implant holds what opens them. Android only; there is no iPhone app. PIV smart-card login: mostly for use abroad VivoKey PIV PIV is the US government smart-card standard (FIPS 201). More It is used for smart-card login to Windows and macOS, for certificates and signing, and for SSH through PKCS#11 on systems set up for it. It is large: about 33 KB, roughly 40% of the chip, so it competes with OpenPGP and FIDO2 for space. In Japan, companies and government services rarely use PIV cards for login, and Japan's public certificate system is the My Number card's JPKI, which a PIV applet cannot replace. It matters mainly if your employer or systems abroad already use PIV. For developers: your own login system VivoKey Spark / Verify The identity applet (VivoKey Verify) is part of our standard setup, and like any applet it can be removed or added back in the Fidesmo app. More It can prove who you are to an application someone builds. Think membership, access control or a custom login. It is a building block, not a ready-made service in Japan. Before you rely on any of it Keys never leave the device Keys are generated on the chip and used on the chip. Neither we nor VivoKey can read them, and that also means nobody can recover them for you. They do not all fit at once About 82 kB in total, and each applet needs both storage and transient RAM. A 32 kB NFC Share alone takes more than a third of the chip. Tell us your priority order and we propose a configuration from the top down. Deleting an applet deletes what is in it Removing or updating an applet erases the keys and data inside it, and nothing can bring them back. Plan backups before you rely on any of them. Will it fit? Pick what you want on your Apex and see whether it fits in the memory. This tool needs JavaScript. Ask us on official LINE and we will check what fits. Choose what you want to add. ● It fits ▲ It installs, but RAM is tight × It does not fit Clear all Storage / 82.4 kB Transient RAM / 4,096 B left over. short on storage. short on transient RAM. One-time codes need of free RAM to save the first account, and less than that is left. Free Memory Lets Apex Manager show free space. In our standard setup 0.7 kB VivoKey Verify Proves the implant is yours. In our standard setup 3.0 kB FIDO2 Passkeys and security-key login 40.8 kB One-time codes Two-factor codes (TOTP / HOTP) 6.3 kB HMAC-SHA1 Opens a KeePassXC password vault 4.2 kB SmartPGP PGP encryption and signing 25.4 kB SeedKeeper Seed phrases and small secrets 24.9 kB NFC Share Opens your link on their phone 6.4 kB Satochip BIP32 crypto hardware wallet 19.8 kB Keycard Crypto wallet, Keycard / Status family 15.7 kB VivoKey PIV Smart-card login and certificates (PIV standard) 32.7 kB NFC Share size, fixed at install 1 kB 2 kB 4 kB 8 kB 16 kB 32 kB We install Free Memory and VivoKey Verify as part of our standard setup, so they start selected. Anyone can remove either one later in the Fidesmo app, and that space becomes free. The chip's total and the sizes of these two and of PIV were measured on a real Apex; the other sizes are estimates from Dangerous Things' own capacity tool, and all of them change as applets are updated. Before you order, we confirm the final answer with you on official LINE . IPHONE, HONESTLY "Does it work on iPhone?" is really three questions: can iOS speak the protocol, is there an app for this applet, and does that app work with a small antenna under your skin. The answers are not always the same. FIDO2 Works iOS speaks it Yes App exists Yes Under the skin Confirmed NFC Share Works iOS speaks it Yes App exists Not needed Under the skin Works OTP With conditions iOS speaks it Yes App exists Yes Under the skin Some instability reported HMAC (KeePass) With conditions iOS speaks it Yes App exists Yes (Strongbox) Under the skin Reported, not guaranteed SeedKeeper Android is safer iOS speaks it Yes App exists Yes Under the skin Not confirmed (app closing reported on a card) SmartPGP No route iOS speaks it Possible App exists No practical app Under the skin Not tested Satochip Not promised iOS speaks it Possible App exists Varies Under the skin Not confirmed Adding applets Small ones yes; FIDO2 from Android iOS speaks it Yes App exists Yes (Fidesmo) Under the skin Small applets reported fine; FIDO2 can hit the 20 second cutoff PLATFORMS Applets are added to the chip with the Fidesmo app, on a phone held to the implant; VivoKey Apex Manager then manages the applets already added. What each platform can do beyond that depends on the applet and, on a computer, on the reader. Android The recommended route. Adding applets through Fidesmo (the large ones included), managing them in Apex Manager, OTP, FIDO2, PGP through OpenKeychain, and the Satochip client all run on Android. iPhone Reading an NFC Share and logging in with FIDO2 work on an iPhone alone. From an iPhone, small applets such as OTP, NFC Share and Tesla can be added through Fidesmo, but large ones such as FIDO2 can fail, because iOS cuts an NFC session off at about 20 seconds; add those applets from an Android phone (borrowed is fine, no SIM needed) or a desktop reader. The answer for each use is in iPhone, honestly . Mac macOS has no NFC, so a USB PC/SC reader is required. On our own bench, with an ACR1252U, FIDO2 registration and login pass in Safari. PGP through gpg is reported working. A credential registered on the Mac was then recognized on an iPhone: register once, use on both. Windows / PC Through a PC/SC reader. Which applets you can drive depends on the software on that machine, and that software belongs to its vendor. Read range under the skin is shorter than in the hand. It depends on the phone, the reader, the orientation, the depth of placement and your own tissue. APPS Two apps show and manage the applets already on the chip, one for each platform, from two different makers. Adding applets to the chip is done in the Fidesmo app, not in either of them. VivoKey Apex Manager Android By VivoKey. English only. Available now Hold the phone to the implant to see which applets have been added, how much storage is free, and to use several of them: OTP codes, NFC Share records, HMAC keys. It does not add applets to the chip; Fidesmo does. The app is in English only. ‹ › VivoKey Apex Manager on Google Play -> Apex Manager iOS By VivoKey Japan. Japanese and English. Coming soon Built by VivoKey Japan with a Japanese interface, and coming soon to the App Store from VivoKey Japan. Adding applets to the chip does not wait for it: that is Fidesmo's job, and the Fidesmo app is on iOS today. ‹ › Apex Manager for iOS: features, privacy and support -> Applets are delivered through the Fidesmo platform and added to the chip with the Fidesmo app, on iOS and Android, both from Fidesmo AB, not VivoKey. From an iPhone, small applets such as OTP, NFC Share and Tesla can be added through Fidesmo, but large ones such as FIDO2 can fail, because iOS cuts an NFC session off at about 20 seconds; add those applets from an Android phone (borrowed is fine, no SIM needed) or a desktop reader. iOS / Android SHARE YOUR LINKS ABOUT CHILI -> ChiLi 🌶️ your links, on your chip Tap your implant, show your links. No app, no account, nothing stored on a server. See how it works -> Make yours in a minute Fill in your name and links, pick a color and a background, and write the link to your chip from your phone. Make yours -> THE CATALOG Applets are published to the Fidesmo platform by several vendors, and you add them to the chip by holding a phone to the implant, through the Fidesmo app. It is a catalog built for the whole world, and it moves: entries are added and removed, and their sizes change from one release to the next. That is worth knowing before you choose something you will keep for years. The catalog is not ours Fidesmo runs the platform and the vendors publish to it. VivoKey puts its own applets there alongside other companies', and neither VivoKey Japan nor VivoKey decides what appears in the list on your phone. The list moves Applets appear and disappear, and their sizes change with new releases. A combination that fits today is not a promise about next year, so treat any capacity plan as a snapshot of the moment it was made. Free Memory is an applet too Apex Manager cannot report free space until you add the Free Memory applet, and that applet occupies a little space itself. If your memory readout shows nothing, this is usually the reason. A catalog serving the whole world also lists apps that have no service behind them in Japan. You can still add them to the chip as applets, and they still take up space. Two of them come up often enough to name here. They are examples, not a complete list: the catalog changes, so a third could appear at any time. Fidesmo Pay Contactless payment service provided by Fidesmo AB rather than VivoKey. Japan is not currently listed among Fidesmo Pay's supported card markets. More importantly, seeing Fidesmo Pay in the catalog does not make an Apex implant a payment device: payment requires a supported, payment-enabled product and a compatible card and issuer. VivoKey Japan does not offer payment-capable implants, and Apex implants cannot currently be used for contactless payment. VivoKey PIV PIV is the credential standard used to interact digitally with agencies of the United States federal government. It has no counterpart in Japan, so there is nothing here for it to authenticate against. It is not listed on VivoKey's own app pages either, so the catalog is where most people meet it for the first time. Ask before you add an applet If you are not sure whether something in the list has a service behind it in Japan, ask us on the official LINE account before you add the applet. We will tell you what we know, and roughly what it would cost you in space. That is a question worth asking us rather than the catalog. Spark, VivoKey's own identity applet, is already on the chip from the factory, and is not something you add or remove. It is part of the baseline every Apex arrives with. AND PAYMENTS? Nope. It still doesn't do payments. ...yet 😏 No payment Payment is enabled only on EMV-certified products approved by the card networks, and no payment network has authorized an implantable payment device. VivoKey Japan does not offer payment-capable implants, and an Apex cannot be used to pay. INSTALLATION Apex is a special order The manufacturer sells Apex only in minimum order lots, so we do not stock it: each Apex is ordered in from the manufacturer for one customer. There is a lead time between your order and the installation. Payment is by bank transfer, one implant per order, as with every product we sell. Under 18: guardian's consent required. The procedure At VivoKey Japan an Apex is placed by a partner physician, through a small incision. A subdermal pocket is made, the device is slid in by sterile gloved hand without tools, and the wound is closed at the physician's judgment. There is no single correct location. Areas that flex or grip are avoided, and the side of the hand is not recommended. The final placement is decided with the physician. Not under a gripping surface (no palm-side placement) Not on or parallel to a joint The side or edge of the hand is not recommended Module and Spectrum are too large for the wrist or fingers The procedure fee is not included The prices on this page are for the implant only. The procedure fee is set by the partner physician, not by us, and we tell you that physician's figure when we introduce you. See partner physicians for where they are and cost for a full example added up. It reaches your partner physician sealed and sterile from the manufacturer, and the pouch is opened by the physician on the day. It does not pass through your hands. MRI AND IMAGING Before an MRI scan Full MRI advisory The manufacturer does not provide MRI data, a formal MR document, or an MR card for any Apex. It also has not had the flex products MRI tested. The manufacturer describes the flex products as having no ferrite core; that describes how they are built, it is not a test result and it is not a safety statement. Before any scan, tell your physician and the radiology staff, and follow their judgment. WARRANTY The manufacturer, Dangerous Things, warranties implants by product line. Apex's flex antennas carry a different warranty from its bioresin Spectrum. Flex implants A unit with a manufacturing defect is replaced free of charge for 1 year, on two conditions: installation by a professional (for VivoKey Japan customers, a partner physician) and video of the procedure. What the video has to show The video exists for one purpose: a warranty claim. Only two moments: (1) the device coming out of its pouch onto the sterile field, and (2) the physician handling the device by hand, without tools, and installing it. No face, no name, no name of the place, no preparation, no audio. Term: 1 year limited warranty Products: Apex Narrow, Apex Module, and other flex products by special order Bioresin implants The manufacturer provides a limited lifetime warranty under the same conditions as glass implants. Term: Limited lifetime warranty Products: Apex Spectrum Common to every Apex The replacement is determined by the manufacturer, under its warranty terms and product availability. The manufacturer's warranty covers replacing the device itself. The installation fee for removing a unit and installing the replacement is set by the partner physician and is not covered by that warranty. Your rights under Japanese law are separate from the warranty. Failure caused by damage, such as mishandling, tooling, programming errors, data tearing or injury, is outside the warranty, though the manufacturer considers each case individually. Under the manufacturer's policy, shipping in connection with a replacement, including return shipment to the manufacturer, may be charged more than 6 months after delivery on flex products (Narrow, Module). The manufacturer's policy states no period for the Spectrum. What we support What we stand behind: the product itself, Apex-side compatibility, introducing you to a partner physician, and handling the manufacturer's warranty. Outside our guarantee: third-party applets and software (SeedKeeper, Satochip, wallets, password managers, door locks, any service's FIDO2 implementation). We answer for Apex-side compatibility; beyond that, the behavior belongs to those vendors. Compatibility changes. Something working today is not a promise that it works next year. Backups of keys and seeds are yours to keep. Deleting an applet deletes the data inside it, and neither we nor VivoKey can recover it. Warranty terms are set by the manufacturer, Dangerous Things, and reflect their published policy as of 2026-09-07. FAQ Which one should I choose? Every antenna carries the identical chip, so you are choosing range and placement. Module if you use an iPhone or expect long operations such as signing. Narrow if thinness and the widest choice of placement matter more than range. Spectrum if you want the light, knowing it is rigid and, in the manufacturer's own bench test, repeatedly failed to add an applet. What works on an iPhone? Reading an NFC Share and logging in with FIDO2 both work on an iPhone alone. OTP works through Yubico Authenticator, with some instability reported. From an iPhone, small applets such as OTP, NFC Share and Tesla can be added through Fidesmo, but large ones such as FIDO2 can fail, because iOS cuts an NFC session off at about 20 seconds; add those applets from an Android phone (borrowed is fine, no SIM needed) or a desktop reader. The iOS Apex Manager, which manages the applets you have added, is coming soon to the App Store from VivoKey Japan. Reading a Narrow with an iPhone is genuinely hard; if the iPhone is your main device, we suggest the Module. What works on a Mac? With a USB PC/SC reader, almost everything. macOS has no NFC, so a reader such as the ACR1252U is required. On our own bench, FIDO2 registration and login in Safari. PGP through gpg, Satochip through Sparrow Wallet and SeedKeeper are all reported working. A credential registered on the Mac then works on your iPhone, because it lives on the chip and travels with the implant. Can it unlock my door? It depends on the lock. On our own bench an Apex Module registered and worked on a SESAME Touch Pro. The SwitchBot keypad does not work: many consumer readers only accept a 4 byte MIFARE Classic UID and cannot enrol the Apex's 7 byte UID. Tell us your model and we will answer what we can. And to be straight: a lock that enrols by UID identifies you by a number that can be copied in principle. Cryptographic access control means a custom reader doing challenge-response, which is a development project rather than a product. Can it store secrets? Yes. The SeedKeeper applet stores secrets such as seed phrases, and it is confirmed working on the Apex. Android or a desktop reader is the reliable route; the iOS client is reported unstable at the reveal step. It is not for storing documents: the whole chip is about 82 kB. Keep the encrypted material outside and use the Apex as the key that opens it. Can it sign crypto transactions? Yes, with the Satochip applet, confirmed with Sparrow Wallet on desktop. Electrum does not work out of the box. On mobile the client is BitcoinKeeper, and there is no confirmed iPhone route. On the Apex, Satochip's originality certificate cannot be loaded (function is unaffected, attestation is not available), and Satodime is not supported. Can it protect my documents? Yes, two routes, and one of them needs a non iPhone device. PGP (Android or desktop, not iPhone): the SmartPGP applet behaves as an OpenPGP card, keys are made on the chip and cannot be extracted, and decryption needs the implant on the reader. A password manager: the HMAC-SHA1 applet works as a KeePassXC second factor; the database must be KDBX 4, and on iPhone Strongbox is reported working. Will all the applets fit at once? Not necessarily. The Apex has about 82 kB, and each applet needs both storage and transient RAM, so either can run out first. Will it fit? above lets you try a combination. Applets can be added and removed later, so tell us your priority order and we propose a configuration from the top down. Deleting an applet deletes its data, so back up seeds separately. What do I give up by choosing the Narrow? No capability, because every antenna carries the identical chip. You give up read range. In a published bench test the Narrow read at about 1 cm in the hand, roughly 40% of the Module, and under the skin every figure gets shorter. That matters for long operations: adding an applet takes tens of seconds and a dropped session starts over. In exchange you get 0.4 mm thickness and the widest choice of placement. BEFORE YOU BUY Before you buy Apex differs from the glass implants we have sold until now, in what it is and in how it is warranted. This page holds only the things that materially affect your decision. Please read all of it before ordering. Read every item -> Ask on official LINE How ordering works --- ## https://vivokey.jp/apps.html APPS Everything starts at the chip A chip under the skin is a key, a business card, a passkey, a vault and a thermometer, depending on the compatible app you use. These are all of them: the ones VivoKey publishes, the ones built here in Japan, and the ones on the way. APPS 10 iOS 6 ANDROID 7 MADE IN JAPAN 6 Apex Manager SIDEN RawNFC Spark Actions NFC Passkey Manager NFC Passkey Bridge VivoKey Vault Spark Gate SigNet VivoKey Thermo MANAGE THE CHIP Apex Manager iOS / Android iOS by VivoKey Japan. Android by VivoKey. iOS app built in Japan Available now, iOS coming soon See and manage what is on your Apex: one-time codes, HMAC keys, the NFC business card, OpenPGP and the chip's free memory. FOR Apex Google Play -> About the app -> SIDEN iOS By VivoKey Japan. iOS app built in Japan Available now The utility for LED implants: read the UID and records, keep your links as tiles and write them in one tap, and light the LED to find where your phone reads it best. FOR xSIID, NExT v2 App Store -> About the app -> RawNFC Android By VivoKey. Available now A developer tool: send NFC commands directly to a chip and read its answers as they come back. For engineers and the curious. FOR Any NFC chip Google Play -> SHARE Spark Actions iOS / Android By VivoKey. iOS app built in Japan Available now Decide what someone gets when they tap their phone to your Spark: a website, a call, an email, a Digital Card, or SupportNet. FOR Spark 2 App Store -> Google Play -> About the app -> SIGN IN AND PROTECT NFC Passkey Manager Android By VivoKey. Available now Look after the passkeys on your chip: change the PIN, list the sign-ins stored on it, and delete the ones you no longer need. FOR Apex with the FIDO2 applet, and other NFC passkeys Google Play -> NFC Passkey Bridge Android By VivoKey. Available now Sign in on a computer that has no NFC reader: the computer shows a QR code, your Android 14 phone scans it, and your hand does the rest. FOR Apex with the FIDO2 applet, and other NFC passkeys Google Play -> VivoKey Vault Android By VivoKey. Available now An encrypted file vault with no password: the key is generated with your implant, so without the chip the files do not open. FOR VivoKey implants Google Play -> Spark Gate iOS By VivoKey Japan. iOS app built in Japan Coming soon on iOS A passkey vault that opens with your Spark 2, so signing in to a website starts with your hand. FOR Spark 2 SigNet iOS By VivoKey Japan. iOS app built in Japan Coming soon on iOS Proof that a message really comes from you, signed with a tap of your Spark 2. A face and a voice can be faked; a chip under your skin cannot. FOR Spark 2 SENSE VivoKey Thermo iOS / Android By VivoKey. iOS app built in Japan Available now, iOS coming soon Tap your phone to a Thermo implant and read the temperature of the implant itself, with a history of past readings. It works offline. Not a certified thermometer: the reading depends on where the implant sits and is not body or core temperature. For experimenting only, never for medical use or diagnosis. FOR VivoKey Thermo implant Google Play -> A BUSINESS CARD, NO APP ABOUT CHILI -> ChiLi 🌶️ your links, on your chip Tap your implant, show your links. No app, no account, nothing stored on a server. See how it works -> Make yours in a minute Fill in your name and links, pick a color and a background, and write the link to your chip from your phone. Make yours -> ADDING APPLETS On an Apex, the apps above use applets that are already on the chip. Adding an applet to the chip is a separate step, done in the Fidesmo app, which is published by Fidesmo AB. Apex and its apps Ask about an app on LINE --- ## https://vivokey.jp/before-you-order.html BEFORE YOU ORDER A few things to be sure about first A page to read through before you order: the warnings, the acknowledgements, cancellation and refund, and who answers what. Ordering on the official LINE account counts as your understanding and agreement to this page. AGE Under 18: guardian's consent required PER ORDER One implant PAYMENT Bank transfer only Ask on official LINE BEFORE ANYTHING ELSE Who makes this, and since when -> The five that decide whether to order at all. Each one is stated in full further down. Under 18: guardian's consent required One order is one implant, one voucher and one installation appointment. Payment is by bank transfer only. No card, no e-money. After installation there is no return and no refund. If any of the health points below applies to you, tell the partner physician when booking the installation. Not sure which product? Ask first If you are still deciding between simple sharing, a specific reader or lock, and Spark 2 authentication, ask on LINE before ordering. No self-installation In Japan, installation by a partner physician is VivoKey Japan's own standard. The implant is not sold as a loose item for you to keep and install yourself. If you order and then decide against installation, you can cancel for a refund (see Cancellation and Refund below), or we can render the implant permanently non implantable and give it to you in that form instead. Health concerns? Tell the physician when you book Tell your partner physician when booking the installation if any of these apply: bleeding disorders, anticoagulant or antiplatelet medication, a tendency to faint, alcohol within 12 hours of the visit, an alcohol allergy (disinfectants used may contain alcohol), other medical devices left in the body (such as a pacemaker), or concerns about wound healing. If you have concerns before ordering, or an ongoing medical condition, or take regular medication, consult your own doctor. If the physician cannot install, we will advise you on the options, including another partner physician. If installation ultimately cannot go ahead and the order is cancelled, we refund you (see below). What are you getting? The page keeps only the items that apply to what you choose. xSIID NExT v2 Spark 2 Apex Narrow special order Apex Module special order Apex Spectrum special order Another glass implant special order Another flex implant special order A 125 kHz (LF) implant special order Showing all 44 items Nothing chosen yet, so every item is shown. This product has no standard position. Tell us the position you prefer; the physician decides. Copy this I would like to order (product name). LED color: (your choice). Position: standard, the web between the thumb and index finger. I have read the important notes and agree. 44 acknowledgements. (date) Copy Copied Order on official LINE A choice of LED color applies to xSIID and NExT v2. The standard position is for the glass implants only; flex and Spectrum have no standard position and the physician decides. For another position, write it in and we will ask the partner physician. ACKNOWLEDGEMENTS THE FULL PROCESS -> Everything below applies to what you have chosen. Warranty follows your choice too. If anything is unclear, ask on LINE before you order. Health and age Under 18, you can order with a parent or guardian's consent. Whether the installation can be done, and on what conditions such as a guardian being present, depends on the partner physician's policy, so please consult us on the official LINE before ordering. If I have a bleeding disorder such as haemophilia, or bleed easily, I will tell the partner physician when booking the installation. If I take anticoagulant or antiplatelet medication, I will tell the partner physician when booking the installation. Do not stop prescribed medication on your own in order to have an implant installed. If I have fainted or felt lightheaded before, or tend to, I will tell the partner physician when booking the installation. I will not drink alcohol within 12 hours of the procedure. I do not have an alcohol allergy. An alcohol-based disinfectant may be used. If you have an allergy, tell us before you order and tell the physician on the day. If I have a chronic condition, take medication, or have any concern, I will consult my own doctor first. Installation and healing You understand that self-installation and installation by anyone other than a partner physician are not accepted. You understand that the physician may decline installation on medical or procedural grounds. You understand that healing, wound care and bandage questions follow your physician's guidance. I understand that the placement is decided with the physician. There is no single correct location, and the physician may decline a position that is not suitable. I understand the healing timeline for a glass implant. The wound is about 2.5 mm. Light bleeding usually stops within 5 to 30 minutes, and mild pain, bruising and swelling can last a few days. A scab forms the next day, and by 3 to 5 weeks only a scar of about 1 mm remains. By 6 to 8 weeks it is barely visible. After the procedure, pain, itching or a pinching sensation may occur. If symptoms persist or worsen, or there is redness, swelling, warmth or fever, promptly consult the physician who did the installation. I understand the aftercare while the implant settles. A collagen capsule forms around the implant over about 2 weeks to 1 month and holds it in place. Until then: no vigorous exercise, no pressure on the site, do not poke or play with it, no onsen or sauna, nothing that grips hard such as rock climbing or shooting, and take care not to pull the skin near the site when putting a hand in a pocket or a glove. Keep the site covered and use a waterproof plaster when washing hands or showering. I understand that a flex implant is placed through an incision and the wound is closed. A subdermal pocket is made, the device is slid in by sterile-gloved hand without tools, and the physician decides how the wound is closed. Healing takes longer than for the smaller glass implants. I understand that a flex implant is flat and large, which limits where it can go. Areas that flex or grip are avoided, and the side of the hand is not recommended. I understand that procedure requirements and the final placement are decided with the physician. There is no single correct location. Areas that flex or grip are avoided, and the side of the hand is not recommended. The Module and Spectrum footprints rule out the wrist and fingers. What it can and cannot do You understand that these implants cannot be used for payment. I understand that read range is short, and varies with the product, the placement, body tissue, the reader and the orientation. Each product page carries its own figure. Figures measured outside the body are longer than what the same device does once installed. I understand that a glass implant can move slightly under the skin. Once the swelling goes down it can be moved a little by hand. Swelling also makes it harder to read, and reading improves as the swelling goes. I understand that glass can break under a hard impact close to bone. That is why the standard positions avoid bone. The manufacturer has published compression, pressure, temperature and impact testing on the x-series, and we set out what each result establishes, and where it stops, on our testing page. As far as we are aware, we have had no report of an implant breaking. I understand that a glass implant can be set into a resin keychain instead of being installed. This option exists for the glass products only. I understand that a bioresin implant has a solid body that does not flex. The shape varies by product. What they have in common is the material and that it is rigid, which makes the placement a different question from a flex implant. I understand that a phone cannot read a 125 kHz (LF) implant. Phones carry a 13.56 MHz NFC reader and nothing else, so an LF chip needs its own reader or an LF access control system. On a dual-frequency product such as the NExT, the HF half answers a phone and the LF half does not. I understand that Apex is a different product family from the glass implants. Narrow and Module are flex products; Spectrum is a rigid bioresin disc. The shape, size, material, procedure and warranty are all different from the glass line. I understand that RF performance depends on form factor, placement, body tissue, the phone or reader, orientation and similar factors. In a published bench test, measured outside the body: Narrow about 1 cm, Spectrum about 1.5 cm, Module about 2.5 cm. Once implanted these are shorter. I understand that the Narrow prioritises small size over RF performance. Its range is about 40% of the Module's. Difficulty reading it with an iPhone is reported, and some users add a repeater sticker to the phone. Applets and data I understand that not all applets may fit at the same time. There is about 82 kB of memory and about 4 kB of transient RAM. Applet sizes change with updates. Tell VivoKey Japan your priority order and we propose a configuration from the top down. I understand that third-party applets and software are not guaranteed or supported by VivoKey Japan beyond Apex-side compatibility. This covers SeedKeeper, Satochip, wallets, password managers, door locks, and any given service's FIDO2 implementation. I understand that applet and software compatibility can change. Something working today is not a promise that it will work later. I understand that the Apex is only one component of systems such as FIDO2, wallets and locks. The reader, the software and the service implementation all have to line up. The Apex reports a null AAGUID, so a service that only accepts authenticators whose make and model it can identify may refuse it. I understand that deleting an applet deletes the data stored in it. Neither VivoKey Japan nor VivoKey can recover it. I understand that backups of seed phrases and private keys are my responsibility. Keys generated on the chip cannot be extracted. That is the design, and it also means they cannot be recovered if lost. Removal and imaging I understand that removal is also a procedure and must be done by a medical professional. Never attempt it yourself. Removal carries its own procedure and its own fee, in the same way as installation. I will tell the facility that I have an implant before any imaging or dental procedure. Tell the physician and the radiological technologist. This applies to every implant, whatever it is made of. I understand that the glass x-series is described by the manufacturer as MR Conditional. Every glass implant has a ferrite core and is MR Conditional; Apex has no formal MR document. Full MRI advisory . MR Conditional is not the same as MR Safe: tell the facility before any MRI and let them decide how to proceed. I understand that a glass implant is comparatively straightforward to remove. Unlike an animal microchip it has no anti-migration coating, which is what makes removal straightforward. It is still a procedure and it is still done by a medical professional. I understand that removing a flex implant is a surgical procedure. It is a larger undertaking than removing a glass implant, and it is not comparable to it. Warranty I understand that the warranty differs by antenna and is subject to the manufacturer's conditions. Apex Narrow, Apex Module, and other flex products by special order: 1 year limited warranty from the manufacturer, on manufacturing defects. Apex Spectrum: limited lifetime warranty from the manufacturer, on manufacturing defects. Damage from mishandling, tooling, programming errors, data tearing or injury is not covered by the manufacturer's warranty, but is considered case by case. Under the manufacturer's policy, a replacement after 12 months (x-series) or 6 months (flex) may incur the actual shipping cost, including return shipment to the manufacturer. We tell you the amount before shipment. I understand that proper installation and handling are conditions of the warranty. For Narrow and Module the conditions are installation by a physician and video of the procedure. Only two moments must be on camera: the device coming onto the sterile field, and the physician placing it by hand without tools. No name, face, name of the place, preparation or audio is required. Limited lifetime warranty Spark 2, xSIID, NExT v2, and other x-series by special order. The manufacturer provides a limited lifetime warranty covering manufacturing defects for the life of the product line: while it is still producing that product and the product is still in stock, a failure caused by a manufacturing defect is replaced free of charge. 1 year limited warranty Apex Narrow, Apex Module, and other flex products by special order. The manufacturer provides a one year limited warranty. Eligibility is subject to conditions including installation by a professional and video of two specific moments: the device coming out of its pouch onto the sterile field, and the physician placing it by hand without tools. What the video has to show The video exists for one purpose: a warranty claim. Only two moments: (1) the device coming out of its pouch onto the sterile field, and (2) the physician handling the device by hand, without tools, and installing it. No face, no name, no name of the place, no preparation, no audio. Limited lifetime warranty Apex Spectrum. The manufacturer provides a limited lifetime warranty under the same conditions as glass implants. Common to every Apex The replacement is determined by the manufacturer, under its warranty terms and product availability. The manufacturer's warranty covers replacing the device itself. The installation fee for removing a unit and installing the replacement is set by the partner physician and is not covered by that warranty. Your rights under Japanese law are separate from the warranty. Failure caused by damage, such as mishandling, tooling, programming errors, data tearing or injury, is outside the warranty, though the manufacturer considers each case individually. Under the manufacturer's policy, shipping in connection with a replacement, including return shipment to the manufacturer, may be charged more than 6 months after delivery on flex products (Narrow, Module). The manufacturer's policy states no period for the Spectrum. Warranty terms are set by the manufacturer, Dangerous Things, and reflect their published policy as of 2026-09-07. How the order works The product you order is shipped directly to the partner physician you book with. VivoKey Japan provides your name and order details to that partner physician, to match you to the shipment. Your contact details are provided only if the booking needs them. You agree to this. You understand that the implant price and the installation fee are separate. You understand that the implant ships directly to your partner physician and is not handed to you before installation. You understand that one order is one implant, one voucher and one installation appointment. I understand that Apex is a special order and that the procedure fee is not included in the product price. It is ordered in from the manufacturer, so there is a lead time. The procedure fee is set by the partner physician, and VivoKey Japan tells me that physician's figure when it introduces me. Ordering on LINE counts as agreement to this page There is no form to sign. When you tell us on the official LINE account which implant you want, we treat that as your understanding and agreement to the warnings and acknowledgements above. The message this page hands you already carries that sentence. CANCELLATION AND REFUND FULL TERMS -> Within 30 days of the contract being formed we refund the product price; an actual cost the cancellation caused, such as return shipping, may be deducted. Whether you have booked makes no difference. If installation cannot go ahead for reasons not attributable to you, the refund is in full. After installation, given the nature of the product, we cannot accept a return or a refund. --- ## https://vivokey.jp/chili.html CHILI 🌶️ CHIP + LINK ChiLi 🌶️ Tap your implant, show your links Tap your implant, show your links. No app, no account, nothing stored on a server. ChiLi: Chip + Link. APP None needed ACCOUNT None SERVER Nothing stored CHIPS xSIID / NExT v2 / Apex Make yours HOW IT WORKS 01 Make it here Open the builder, add your name, a short line and your links, then pick a color and a background. The meter shows what fits on your chip. 02 Write it to your chip On Android, Chrome writes it straight to the implant. On iPhone, copy the link and write it as a URL record with an NFC app. On an Apex, it goes into NFC Share. 03 People tap your hand Their phone opens your page with your links and a button to save your contact. They need no app, and you can change it any time with the Edit link at the bottom of your page. LIVE EXAMPLES Designer, sakura Open -> Engineer, circuit Open -> Musician, NFC ripple Open -> These are the real page running, not pictures. Sixteen backgrounds, any color, light or dark. WHICH CHIPS xSIID About 868 bytes usable from a phone: plenty for a name, a short line and a handful of links. About xSIID -> NExT v2 The NFC side holds the same about 868 bytes, so the same profile fits. About NExT v2 -> Apex with NFC Share NFC Share is sized when you add it, from 1 KB to 32 KB, so even a long profile fits. About Apex -> PRIVACY Your profile lives on your chip, not on our server Everything is packed into the link itself, after the #. Browsers never send that part to a server, so vivokey.jp only shows the page and stores nothing. Anyone who taps your chip can read it, so put on it only what you would print on a business card. SECURITY Thank you Thank you to Joshua Phillips for reviewing the security of vivokey.jp. MAKE YOUR CHILI Make yours 🌶️ Already have one? Open your page and tap Edit, or paste your link into the builder. --- ## https://vivokey.jp/clinic-partners.html PARTNERSHIP / FOR PHYSICIANS The physician does only what a physician can do This page is for physicians considering a partnership with VivoKey Japan. If you are a customer looking for somewhere to have an implant installed, that is the installation and partner physicians page . VivoKey Japan is the official Japanese importer and seller of VivoKey Technologies and Dangerous Things microchip implants. We ask a partner physician for one thing, the installation and the medical judgment around it. We do not ask you to hold stock or to be a contact point for the public. STOCK None held by you STERILE HANDLING Maintained in your own practice FEE Set by you THE DECISION The physician's, on the day Contact us about partnering What to send us WHAT WE ASK, AND WHAT WE DO NOT VivoKey Japan handles product explanation, voucher issuance and customer coordination. The partner physician focuses on the procedure, medical judgment and aftercare. What we ask of you Perform the installation as a physician The procedure is carried out under sterile conditions, and the final medical judgment is the physician's. Examine first, and decide whether to proceed Whether to go ahead is your decision on the day, and it is always yours. Check the customer and the voucher on the day Before installation, you confirm the customer, the installation voucher and the prepared implant against each other. Set your own fee and receive it directly The fee is yours to set and yours to keep. VivoKey Japan takes no part of it. Explain aftercare using the handout we supply The installation manual carries a customer aftercare page you can hand over as it is. Tell us when something needs reporting Anything that needs reporting comes back to us through the channel we agree, so there is one route and you are not chasing it. Carry professional liability insurance Insurance covering the practice, with proof shown on request. Keep a basic record for each case A simple record of each installation, kept on your side. Keep the voucher status current Update the installation voucher's status as each case moves forward. Report a serious incident promptly Tell us about a serious incident as soon as reasonably possible, and inside 24 hours where practicable. Take informed consent Explain the installation and take the customer's consent on the day, separate from the pre-purchase acknowledgements. What we do not ask No stock to hold Each referred customer's own purchased implant ships from us to you per case, with freight paid by us. Nothing is held as general stock on your side. Not a public contact point Customers receive product-fit guidance before they reach you, so general questions, and enquiries that were never a fit, do not reach you. No selling, and no units brought in by a customer The implant is sold by VivoKey Japan to the customer, so you are never the public seller of it. Units a customer has obtained elsewhere sit outside this arrangement and are not accepted under it. No marketing required, and free to say so We do not ask you to promote or sell our products, and general product education stays with us. If you want to state publicly that you install for VivoKey Japan's customers, you are free to do so. WHAT NEEDS TO BE IN PLACE REGULATORY POSITION -> A physician already able to carry out a small sterile procedure under the skin has what this needs. Everything else is operational detail we settle together. A physician responsible for installation, and a location where a small sterile subdermal installation can be performed Sterile handling and storage, maintained in your own practice Day-of identity and installation voucher verification Product support and sales questions come back to VivoKey Japan Ability to explain aftercare and respond to medical follow-up questions Installation by a physician is VivoKey Japan's own standard for every implant we supply. THE FLOW, FROM YOUR SIDE THE CUSTOMER'S VIEW -> 01 The customer orders, and reads the acknowledgements Product guidance, working out what the customer actually wants it for, and the pre-purchase acknowledgements all happen with us. Nobody is referred to you before that is done. The acknowledgements are public . 02 VivoKey Japan issues the installation voucher The installation voucher link is sent by official LINE within 24 hours of payment confirmation. It ties one order to one appointment, and it carries the address and contact you give us for bookings. 03 The customer books with you The customer books from the contact on the voucher, directly with you. VivoKey Japan cannot see your calendar, so changes and cancellations go to you. 04 The product arrives with you VivoKey Japan usually dispatches within 24 hours of confirming the customer's payment (the parcel goes into a Japan Post box). Pickup and delivery after that follow Japan Post's schedule. It goes to you, never to the customer: each referred customer's own purchased implant ships from us to you per case, freight paid by us, rather than held as stock. 05 The day: checks, then your judgment Before installation you confirm the customer, the installation voucher and the prepared implant against each other. Then you examine the customer and decide whether to proceed. Declining is a normal outcome and the customer has already been told so. 06 The day: the installation, and the fee The installation follows the manual's handling steps, with the method and the position yours to decide. The installation fee is paid by the customer to you on the day, and VivoKey Japan receives no part of it. 07 Aftercare You explain aftercare and answer the medical follow-up questions. Healing, wound care and dressing questions follow your guidance, and the site says so to the customer in those words. 08 Afterwards, who owns what Product questions, warranty claims and technical support come back to VivoKey Japan, in Japanese, so they do not land on you. Health outcomes and follow-up are yours. Our role and its limits, in full . WHAT YOU DECIDE The fee You set it. It is paid to you on the day, and VivoKey Japan receives no part of it. A flex implant such as an Apex Narrow or Module is a different installation, and you set a separate fee for it; we tell the customer that figure before they order. Which days, and how many Your available days and your capacity are yours. We tell the customer what they are before the booking, and we refer at whatever rate you tell us suits. How the fee is paid Cash, card, whatever you already accept. Some partners take the fee before the procedure rather than after, which is also yours to decide. Where it goes For the glass x-series, the manual recommends a standard position, and the placement is decided with you. There is no single correct location, and you may decline a position that is not suitable. Whether your name is published Your name is not published by us unless you agree to that in writing. Listing the partnership on your own website is entirely up to you, and you may state there that you provide procedures for VivoKey Japan's customers. The site itself lists partner physicians by area and by a permanent letter, never by name. How it looks to a customer . WHAT WE PROVIDE Glass x-series installation manual 13 pages, June 2026 edition What the manual is, and VivoKey Japan's role Terminology, and the materials and instruments needed Reception, and the checks before installation What to explain to the customer beforehand Preparation, and the steps, as product handling The material, and how to think about position Imaging, removal, and returning the removed unit The NFC check before the pouch is opened, and who to call Flex implant installation manual September 2026 edition The product: material, geometries, which way up Handling: no instrument touches it, and what counts as damage Sterilization, and when sterility expires Materials, instruments and preparation Reception, and the checks before installation The plane, and how a site is chosen The installation steps, the manufacturer's own example Imaging, warranty, explant, and returning the device Both describe how to handle our product. Neither instructs medical practice. They are sent on request through the official LINE account, and they are not published on this page. And alongside them The pre-sale guidance and the pre-purchase acknowledgements, completed before anyone is referred to you. Read them . The installation voucher, which ties one order to one appointment and carries the customer, the product and you on one record. Product facts: dimensions, materials, what each product does and what it cannot do. Every product . The manufacturer's MR statements where they exist. Every glass implant has a ferrite core and is MR Conditional; Apex has no formal MR document. Full MRI advisory . Four quality checks before a unit reaches you (factory, before shipping to Japan, on arrival, before shipping to you). Your own NFC read before the pouch is opened, done while preparing for installation, is covered in the installation manual. Customer support in Japanese, before and after the installation, so product and technical questions do not land on you. QUESTIONS PHYSICIANS ASK THE GENERAL FAQ -> How do you position these products under the Act? Whether something counts as a medical device depends on what it is intended to do, not on the fact that it sits under the skin. Our implants are passive NFC/RFID accessories: held to a reader, they return the credentials the user registered or the data written to them. We do not market, sell or intend them for any medical purpose, and our position is therefore that they do not fall within the Act's definition of a medical device. That is our reading, not a determination issued by the authorities. Under Japan's Pharmaceuticals and Medical Devices Act (薬機法), Article 2, Paragraph 4 defines a medical device by its medical intended use: diagnosing, treating or preventing disease, or affecting the structure or functioning of the body. A passive NFC/RFID accessory that makes no medical claims falls outside that definition and is treated as a general accessory (雑貨). Our position in full . Why does this have to be a physician? The implant itself is an accessory. As our own safety and quality standard, VivoKey Japan requires that installation and removal are performed by a physician, who is responsible for them. Every voucher is redeemed with a partner physician. The installation method we specify may include steps that only a physician may perform in Japan, local anesthesia among them. The physician examines you first and decides whether to proceed; that decision is always theirs. What has the customer already agreed to before they reach me? A set of pre-purchase acknowledgements, in these groups: Health and age, Installation and healing, What it can and cannot do, Applets and data, Removal and imaging, Warranty, How the order works. Among them, in the customer's own words: that the physician may decline installation on medical or procedural grounds, and that the placement is decided with the physician. That is a reading requirement before an order, not consent to an installation. The explanation and the consent on the day are separate, and they are yours to take. The acknowledgements . Who is screened out before a referral? Not screened out so much as asked to speak up, and this is the wording the customer reads: "Tell your partner physician when booking the installation if any of these apply: bleeding disorders, anticoagulant or antiplatelet medication, a tendency to faint, alcohol within 12 hours of the visit, an alcohol allergy (disinfectants used may contain alcohol), other medical devices left in the body (such as a pacemaker), or concerns about wound healing. If you have concerns before ordering, or an ongoing medical condition, or take regular medication, consult your own doctor. If the physician cannot install, we will advise you on the options, including another partner physician. If installation ultimately cannot go ahead and the order is cancelled, we refund you (see below)." On age: a customer under 18 is referred only with a parent or guardian's consent, and whether the installation goes ahead, and on what conditions, is decided by your own policy. What state does the product arrive in? The installation is the partner physician's. Some products are supplied sterile by the manufacturer; others are sterilized by the partner physician before use. Handling on the day, the sterile field and the installation itself are carried out by the partner physician's side, under the physician's own medical judgment. VivoKey Japan is not present and does not direct it. For the glass x-series, the manufacturer sterilizes the implant and it arrives in a sterilization pouch; our installation manual asks you to sterilize it again (autoclave) before use. The manual covers handling from the pouch onward, including the NFC read before it is opened. For the flex line the manufacturer is more specific: it ships dry, hydrogen peroxide gas plasma sterilized, sealed in a Tyvek pouch with a process indicator and a lot label, inside an outer polymer pouch, ready to implant as delivered, and it must never be autoclaved. Is it done under anesthesia? Yes. A local anesthetic before the incision, with the specifics decided by the physician on the day. The installation method we specify may include steps that only a physician may perform in Japan, local anesthesia among them. The physician examines you first and decides whether to proceed; that decision is always theirs. Can it be removed later, and by whom? A physician, never the customer. A glass implant has no anti-migration coating, unlike an animal microchip, which is what makes removal comparatively straightforward; removing a flex implant is a larger, surgical undertaking and is not comparable to it. Removal carries its own procedure and its own fee, in the same way as installation. The removed unit is handled as biohazard until it has been sterilized, goes back to VivoKey Japan rather than to the customer, and is never handed over on the day. What about MRI and other imaging? Customers are asked to tell the facility, and the physician and the radiological technologist, before any imaging or dental procedure, and the decision on the day belongs to the imaging facility. Every glass implant has a ferrite core and is MR Conditional; Apex has no formal MR document. Full MRI advisory . What happens if I decline on the day? Nothing is owed to us, and we do not ask you to reconsider. This is what the site already tells the customer will happen. The physician can decline installation for health or other reasons. Where installation cannot go ahead for reasons not attributable to you and the order is cancelled, we refund the product price in full. Where does responsibility sit? What VivoKey Japan does. We import the product, sell it, ship it to the partner physician, issue your installation voucher and introduce you to the partner physician. The booking itself is between you and the partner physician; we pass their message on to you when they are ready to take your booking. We are the authorized handler for these products in Japan and the point of contact for your order. What you do. Some products are supplied sterile by the manufacturer; others are sterilized on your side before use. Handling on the day, the sterile field and the installation itself are carried out by you, under the physician's own medical judgment. VivoKey Japan is not present and does not direct it. On product liability. VivoKey Japan imports these products into Japan and therefore falls within the statutory category of a "manufacturer, etc." under the Product Liability Act. Any liability under that Act applies in accordance with its provisions and is not limited by this page. Our role and its limits, in full . How am I paid? Directly by the customer, on the day. You set the amount, you choose the method, and VivoKey Japan receives no part of it. We do not invoice you and you do not invoice us: the product is sold by us to the customer, and the procedure is yours. Will my name be published? Not unless you want it published. The site lists partner physicians by area and by a permanent letter, with the fee and the available days, and never by name. You are told where to go when your order is confirmed: the installation voucher carries the address and contact, and you book with your partner physician directly. How it looks to a customer . HOW TO START Write to us on the official LINE account. Three things help us answer you properly the first time. Your name, where you practice, and a website if you have one Your specialty How you came across us An online walk-through, 30 minutes to an hour If it is convenient, we go through the outline with you and you ask whatever you want to ask. Suggest a time that suits you. The manuals, on request The two installation manuals go out through the official LINE account whenever you want to read them, before or after the call. The Referral and Procedure Agreement, after the call The Referral and Procedure Agreement (紹介・施術提携契約) comes after the conversation, not before it. Nothing is signed to ask a question. Nothing on this page commits you to anything, and an enquiry is not an application. What follows, in order 01 Agreement The Referral and Procedure Agreement (紹介・施術提携契約) is signed. It frames the model: VivoKey Japan refers customers, and the partner provides the installation as an independent medical professional, not as a reseller. 02 Your fee and booking procedure You tell us your standard installation fee and how customers should book. 03 Voucher account setup You complete the voucher account setup, so installation vouchers can be issued to you. 04 Referrals begin Once these are in place, referrals begin. CONTACT Official LINE Open official LINE Contact us about partnering What customers see --- ## https://vivokey.jp/clinics.html INSTALLATION / PARTNER PHYSICIANS A physician performs the installation Partner physicians install at three locations in Tokyo and Miyagi (Shinjuku-ku, Ota-ku and Aoba-ku, Sendai). The installation fee is ¥30,000 to ¥35,000 incl. tax, for a glass implant (x-series) procedure. The installation fee is set by your partner physician and paid to them directly on the day. Ask on official LINE PARTNER PHYSICIANS TOTAL COST -> Show all partner physicians Tokyo, 2 locations, ¥30,000 to ¥35,000 incl. tax, glass x-series Partner since July 2024 Partner physician A (Shinjuku-ku) ¥35,000 incl. tax, glass implant Days Weekdays (closed Tuesday and Wednesday) Payment Card accepted Note Several physicians perform the installation here, with backgrounds in plastic and reconstructive surgery. Show on map Partner since April 2023 Partner physician B (near Omori Station) ¥30,000 incl. tax, glass implant Days Weekends only Payment Cash only Note The physician here also works elsewhere as a cardiac surgeon. If emergency surgery comes up, replies may take longer, and we may need to ask you to reschedule even on the day. Please bear that in mind if you are traveling from far away. Show on map Miyagi, 1 location, ¥33,000 incl. tax, glass x-series Partner since September 2026 Partner physician C (around Kita-Yonbanchō Station, Aoba-ku, Sendai) ¥33,000 incl. tax, glass implant Days Any day, by advance appointment only Payment Card, QR code payment or bank transfer Note Bookings are made directly with the physician by email. When your implant arrives, the physician checks it before your appointment. Show on map The payment method shown is for the installation fee paid to the partner physician. The implant itself is paid to VivoKey Japan by bank transfer only. The fees above are for the glass x-series (Spark 2, xSIID, NExT v2) in the standard position, the web between the thumb and index finger. Another position is priced differently. Tell us on the official LINE account which position you would like and we will ask the partner physician for you. A flex implant is a different installation and a different fee A flex implant such as an Apex Narrow or Module is a different installation, and the partner physician sets a different fee for it. VivoKey Japan confirms that figure with you before you order. The fees shown here do not cover it. Tokyo / 2 locations Miyagi / 1 location Tokyo, 2 locations Miyagi, 1 location Partner physicians in Tokyo and Miyagi: Shinjuku-ku, Ota-ku and Aoba-ku, Sendai. NO PARTNER PHYSICIAN NEAR YOU? If there is no partner physician near you, a patient asking their own doctor gets further than us contacting physicians who have never heard of this. Ask a doctor you would actually go to. Your own doctor is fine. Use the sentence below. You do not have to explain anything. If they say no, that is fine. Once is enough. Tell us on official LINE either way. We take it from there. What to say, or send I am looking for a physician who can install a microchip implant. A company called VivoKey Japan supplies the procedure documentation and the product to physicians, and the physician sets their own fee. Would you be willing to look at this page? https://vivokey.jp/clinic-partners.html Copy Copied The page they will land on YOUR PARTNER PHYSICIAN THE WHOLE PROCESS -> You are told where to go when your order is confirmed: the installation voucher carries the address and contact, and you book with your partner physician directly. The implant is sent to your partner physician once payment is confirmed, and is never handed to you before installation. Bring your installation voucher and government-issued identification on the day. Medical questions are your physician's to answer. Product and order questions come to us on official LINE. Order on official LINE Before you order --- ## https://vivokey.jp/company.html COMPANY The team on the Japan side This page is VivoKey Japan's company profile. The disclosure required by law, with prices, payment, delivery and refunds, is on the legal disclosure page . VivoKey Japan has been in business since 2020, handling product guidance, order intake, installation vouchers and shipping to the partner physician. The installation itself is done by your partner physician. Ask on official LINE FACTS Since 2020 In business since 2020. Incorporated as a G.K. on December 4, 2023. Registered base Chiba City 8F Chiba Daiei Building, 1-14-13 Fujimi, Chuo-ku, Chiba City, Chiba 260-0015, Japan Role Official Japan importer The only authorized VivoKey Technologies and Dangerous Things handler in Japan. Warranty Limited lifetime (glass) Spark 2, xSIID, NExT v2, and other x-series by special order: limited lifetime warranty. Apex Narrow, Apex Module, and other flex products by special order: 1 year limited warranty. Apex Spectrum, and the d-series (dNExT, dT5) by special order: limited lifetime warranty. KBR1 USB reader, and other products delivered without installation: 90 day limited warranty. The flex terms are conditional on installation by a professional and video of the installation. All of these are the manufacturer's warranty, not ours. TIMELINE Where the technology came from -> 2013 x-series glass implants go on sale. More than 500,000 sold worldwide since. 2020 VivoKey Japan starts trading. 2023 The first partner physician, in Ota-ku, Tokyo (April). VivoKey Japan G.K. is incorporated on December 4. 2024 A second partner in Tokyo joins (July). 2026 The Apex line is offered in Japan by special order. THE ECOSYSTEM The full history, with sources -> VivoKey Technologies is the secure identity side: Spark 2, the Apex platform, the Verify API. It exists so an implant can prove cryptographically that it is genuine, something a plain RFID tag cannot do. Dangerous Things is the hardware, retail and community side: the x-series glass implants, flex implants and tools, including many standard transponders that are not secure VivoKey devices. Both were founded by Amal Graafstra. So not every implant is a secure VivoKey product. Spark 2 and Apex are; xSIID and NExT v2 are standard NFC transponders in implant form, chosen for the LED and for everyday sharing. VivoKey Japan imports and distributes for both brands, and helps you pick the right one for the job. VivoKey Technologies The secure identity side: Spark 2, the Apex platform, and the Verify API. Dangerous Things The hardware and community side: the x-series glass implants, flex implants, and tools. MediHome A Japanese medical solutions company. VivoKey Japan supports their work. WHAT WE DO AND DO NOT What VivoKey Japan does Helps you choose Which implant suits the job, and what it cannot do. Takes the order One implant per order, paid by bank transfer, prices shown incl. tax. Issues the installation voucher The installation voucher link is sent by official LINE within 24 hours of payment confirmation. Ships to your physician VivoKey Japan usually dispatches within 24 hours of confirming the customer's payment (the parcel goes into a Japan Post box). Pickup and delivery after that follow Japan Post's schedule. Written support, JP and EN Japanese or English, through official LINE, before and after installation. What VivoKey Japan does not do Does not perform the installation Installation is done by a physician. That is VivoKey Japan's own standard, and the partner physician sets their own fee. Does not sell implants on their own Every implant is sold with an installation voucher. There is no over-the-counter sale. Does not ship to customers The implant ships to your partner physician, never to your home, so it stays sealed until the day. Why support is written Questions about NFC implants range from simple to technical to order-specific. Handling support in writing through official LINE, in Japanese or English, keeps guidance accurate and easy to trace back to later. LEGITIMACY Official Japan role Company registration, representative and address are published on this page. Registered details -> Public prices and policies Implant prices, the refund rule and the warranty by product family are visible before you contact us. Prices and terms -> A visible installation model We explain openly why product coordination and the installation itself are handled by two different parties, and why the flow from voucher to partner physician works the way it does. The ordering flow -> REGISTERED DETAILS Company name VivoKey Japan G.K. Representative Ryuuzaki Julio Address 8F Chiba Daiei Building, 1-14-13 Fujimi, Chuo-ku, Chiba City, Chiba 260-0015, Japan Founded 2020 Incorporated December 4, 2023 Public contact route Official LINE Show business phone (formal matters) For formal corporate, dispute or legal matters only. Product questions and customer support go through the official LINE account. Show email (corporate & legal matters) For formal corporate, dispute or legal matters only. Product questions and customer support go through the official LINE account. Public prices, the refund rule and the warranty by product family are on the terms page. Legal disclosure and terms --- ## https://vivokey.jp/cost.html COST What does it cost, all in? The implant and the procedure are billed separately. You pay VivoKey Japan for the implant, and you pay the partner physician for the procedure on the day. The total is the first thing on this page. IMPLANT from ¥26,620 incl. tax INSTALLATION ¥30,000 to ¥35,000 incl. tax, glass Ask on official LINE THE TOTAL Scroll to compare -> Implant Implant (incl. tax) Installation fee, glass x-series (incl. tax) Total (incl. tax) Spark 2 ¥26,620 ¥30,000〜¥35,000 ¥56,620〜¥61,620 xSIID ¥29,480 ¥30,000〜¥35,000 ¥59,480〜¥64,480 NExT v2 ¥33,110 ¥30,000〜¥35,000 ¥63,110〜¥68,110 The installation fee column is for a glass implant (x-series) procedure, and it is the range across every partner physician. Apex Narrow, Apex Module and Apex Spectrum are not in the table: those are a different installation, the partner physician sets that fee per case and it is not published. We tell you the figure before you order. PAID TO VIVOKEY JAPAN Scroll to compare -> Implant Price (incl. tax) Warranty Spark 2 ¥26,620 Limited lifetime warranty xSIID ¥29,480 Limited lifetime warranty NExT v2 ¥33,110 Limited lifetime warranty Apex Narrow ¥132,000 1 year limited warranty Apex Module ¥165,000 1 year limited warranty Apex Spectrum ¥159,500 Limited lifetime warranty Bank transfer only, no card, no e-money. Once payment is confirmed, the installation voucher is sent by official LINE and the implant ships straight to your partner physician. Limited lifetime warranty: The manufacturer provides a limited lifetime warranty covering manufacturing defects for the life of the product line: while it is still producing that product and the product is still in stock, a failure caused by a manufacturing defect is replaced free of charge. Apex Narrow, Apex Module, and other flex products by special order: 1 year limited warranty from the manufacturer, on manufacturing defects. The 1 year limited warranty is conditional on installation by a professional (for VivoKey Japan customers, a partner physician) and on video of two specific moments: the device coming out of its pouch onto the sterile field, and the physician placing it by hand without tools. The full terms for every product family are on the terms page . PAID TO THE PARTNER PHYSICIAN PARTNER PHYSICIANS AND MAP -> Partner physicians install at three locations in Tokyo and Miyagi (Shinjuku-ku, Ota-ku and Aoba-ku, Sendai), fee ¥30,000 to ¥35,000 incl. tax for the glass x-series procedure, paid to the partner physician on the day. VivoKey Japan receives no part of it. Partner physicians: areas, fees, days and payment You are told where to go when your order is confirmed: the installation voucher carries the address and contact, and you book with your partner physician directly. Order on official LINE Before you order --- ## https://vivokey.jp/doorlock.html GUIDE / ACCESS AND DIY Look at the reader first For a smart lock, an office entry reader, a safe, a kiosk or your own project, the implant is not the first thing to choose. The reader is. Its frequency and protocol decide which implant can answer it, and whether any can. Identify the reader, then pick the implant. NFC 13.56 MHz LF 125 kHz, NExT v2 DESK KBR1 USB Ask about your reader Compare products FOUR RULES 1. Identify the reader 13.56 MHz NFC, 125 kHz proximity and server-backed authentication are different worlds. Without that first check there is no honest answer. 2. A UID read is a convenience, not a credential Most locks register the implant by its UID. A UID can be read and in principle imitated by another device, so do not make it your only key, and keep a physical key as well. 3. Test the real hardware Brand names are not enough. Chip family, app behavior, firmware and the rules of the building it is installed in all matter. Plan to test the exact stack you will use. 4. Only systems you own or administer Register the implant on locks and readers that are yours to administer. A workplace or building reader needs its administrator's permission, and VivoKey Japan does not help copy a card that belongs to someone else. FREQUENCY AND PROTOCOL 13.56 MHz NFC Smart locks, phones and DIY readers. Most enrol the implant by its UID. Some readers act instead on a stored URL or text (NDEF). 125 kHz proximity (LF) EM410x, HID Prox and similar entry readers A TESTED EXAMPLE Candy House Sesame Touch Pro with Sesame 5: xSIID, Spark 2 and an Apex Module all open it. Our own test, with the units Candy House sent How it works Register the implant once on the lock, then hold your hand to the reader. The antenna is small, so finding the spot takes a little practice at first. It registers a UID The lock stores the serial number, the UID, that every ISO 14443A chip broadcasts. Nothing is written to the implant and nothing is arranged with the lock maker: any implant with a readable UID can be registered, exactly as a card is. A UID can also be read by anyone who gets a reader close enough, so in theory it can be copied to another device. We know of no case of that happening, and it is worth knowing before a lock becomes your only way in. Keep in mind The lock is battery powered and tape mounted, so it needs upkeep; the app warns when the battery is low. Keep a physical key or another way in. Candy House, and what we are not Candy House sent us the units to test with, and we are grateful for it. We have no partnership with them and receive no commission. We asked because customers kept asking us, and it worked. THE 125 KHZ SIDE NExT v2 -> NExT v2 carries a T5577 on the 125 kHz side, shipped configured to emulate an EM410x tag. With a compatible LF writer it can be reprogrammed to any of the following formats. EM41xx EM4200 HID 1326 Prox Card II HID 1346 Prox Card III Indala Pyramid Viking AMV Presco LF use is uncommon in Japan: most customers choose NExT v2 for the green or blue LED, and the LF side helps only when the reader in front of you is one of these. NExT v2 3.1 x 15 mm. Writable NFC plus T5577. Green or blue LED. ¥33,110 incl. tax. The LED runs on power harvested by the NFC chip, so it takes nothing away from the read 125 kHz compatibility depends on the actual reader family and installation environment; it does not work with every lock or badge system See NExT v2 -> KBR1 AND DIY KBR1 -> What it does A USB reader that types the implant's UID as keyboard input, with an Enter if you want one. Plug it in, hold your hand over it, the UID lands in the active field. For desks, demos and kiosks. Reads the UID of ISO14443A implants: Spark 2, xSIID, NExT and NExT v2 See KBR1 -> A UID is not a password Using the UID to log in is a convenience for a personal machine. Anyone with an NFC device can read it, so never use it on a shared computer, and pair it with a second factor for anything that matters. Phones, Arduino, Raspberry Pi Very possible. The chip family and the exact reader behavior matter more than any brand label, so test the actual stack you want to use. READER FAMILIES The reader family decides the product. Scroll to compare -> Reader family What it expects Product 13.56 MHz NFC, UID registration Smart locks and readers that enrol an ISO 14443A tag by its UID (Sesame Touch Pro, many DIY readers) xSIID, NExT v2, Spark 2 13.56 MHz NFC, NDEF Phones and readers that act on a stored URL or text xSIID, NExT v2 125 kHz proximity (LF) EM410x, HID Prox and similar entry readers NExT v2 only (T5577 side) Keyed card systems Office entry systems that check a card key or a specific card type, not the UID None. Ask the administrator whether UID enrollment exists USB, desk A computer that wants the UID typed in KBR1 reader Payment and transit readers Authentication on networks the payment operators run None Not for payment. VivoKey Japan does not sell payment-capable implants. Store and transit readers run on networks controlled by the payment operators, and an implant could only pay if those operators chose to support it. Why there is no giant compatibility list Locks, entry systems, kiosk readers and apps are all configured differently. A short honest conversation is worth more than a list that misleads. Ask about your reader --- ## https://vivokey.jp/dt-catalog.html SPECIAL ORDER The full Dangerous Things catalog Every implant Dangerous Things currently makes, family by family. As the only authorized handler in Japan, VivoKey Japan can supply any of them by special order. For what special order means and how ordering works, see special order first. DESIGNS 30 STOCKED IN JAPAN Spark 2 / xSIID / NExT v2 Ask about a special order THE FULL LINE The same applies to everything on this page VivoKey Japan does not sell or describe any of these as medical devices, and none of them are intended for medical use. Installation is by a partner physician, as our own safety and quality standard. For some product types we do not yet have confirmed physicians, so an installation cannot be booked; the products themselves can still be asked about. Every implant Dangerous Things currently makes. All of them can be brought into Japan through VivoKey Japan by special order. Open a card to see what it is, what it does and what it cannot do. Prices are quoted per order, because lead time and stock move. Counts are of the Dangerous Things catalog as refreshed on 10 September 2026, and they count designs rather than variants: Apex is one design with three antenna formats, and a product sold in several LED colors counts once. Stock in Japan Spark 2, xSIID and NExT v2 are stocked in Japan. Everything else is ordered in, and lead time varies by product. Some of these are for experienced users. The flexUG4 tag emulator is a special order too, and it is listed on the catalog page . Ask on our official LINE. Warranty depends on the family Spark 2, xSIID, NExT v2, and other x-series by special order: limited lifetime warranty. Apex Narrow, Apex Module, and other flex products by special order: 1 year limited warranty. Apex Spectrum, and the d-series (dNExT, dT5) by special order: limited lifetime warranty. KBR1 USB reader, and other products delivered without installation: 90 day limited warranty. The flex terms are conditional on installation by a professional and video of the installation. All of these are the manufacturer's warranty, not ours. See the terms page for the full conditions. x-series glass 11 flex 8 bioresin d-series 4 aesthetic 5 m-series magnets 2 readers and test gear 20 worn, not implanted 5 Filter In stock in Japan only 30 designs , 25 accessories shown No product matches. Try another word, or ask us on LINE. x-series glass 11 Cylindrical biocompatible glass, 2.1 to 3.1 mm across and 12 to 15 mm long. Spark 2, xSIID and NExT v2 are in this family. NExT Dual frequency implant: 13.56 MHz NFC and 125 kHz RFID in one 2.1 x 15 mm body. 2.1×15mm NXP NTAG216 The NExT has no secure element and no cryptographic function, so anything written into its NFC memory can be read by any NFC reader brought close to it. Do not store anything on it that you would not want read. The 13.56 MHz UID is fixed and cannot be changed after manufacture. The NExT is MR conditional: tell the facility that you have one before any MRI examination. The NExT is a cylindrical passive transponder sealed in biocompatible glass, 2.1 mm by 15 mm. Inside are two independent ICs on two different frequencies: an NXP NTAG216 at 13.56 MHz and a T5577 at 125 kHz. Neither has a battery or a power source of its own. Both draw the power they need from the magnetic field the reader generates. The 13.56 MHz side is ISO14443A and NFC Type 2 compliant, so ordinary NFC phones and USB contactless readers can read it. It carries a 7 byte UID and 886 bytes of user read and write memory, which you can fill with a URL, a contact record or other NDEF data and change whenever you like. The 125 kHz side is an emulator. It ships preprogrammed in EM41xx mode with a 40 bit ID, and it can be reprogrammed to behave like EM4200, HID 1326 ProxCard II, HID 1346 ProxCard III, Indala and other common low frequency formats, which is what lets it work with a wide range of 125 kHz access controllers. The limits are worth knowing before you buy. The 13.56 MHz UID is fixed at manufacture and cannot be changed; only the 125 kHz side can be rewritten with another ID. There is no secure element and no cryptographic function, so whatever you write into the NFC memory can be read by any reader brought near it. It is not suitable for secure identification, and it does not make payments. Read range is short. A cylindrical antenna this size does not couple with a reader the way a flat card or label does, so most readers have a narrow spot where the read works and you have to find it once and then use it. The best orientation is with the length of the implant crossing the reader coil rather than lying along it. Read performance settles roughly 2 to 4 weeks after installation. Dimensions 2.1 mm x 15 mm Housing 生体適合ガラス (bioglass) NFC IC NXP NTAG216 NFC standards ISO14443A / NFC Type 2 (13.56 MHz) UID 7 bytes User memory 886 bytes Data retention 10 years / 100,000 writes per block LF IC T5577 (125 kHz) LF factory mode EM41xx, 40 bit ID Power パッシブ (passive, no battery) Chip datasheet : NXP NTAG216 VivoKey Spark 2 Cryptographic NFC identity implant, 2.1 x 14 mm, using AES-128 challenge and response. 2.1×14mm The Spark 2 is not the Apex. It does not run applets, it is not a Tesla keycard, it has no user writable data area and it does not make payments. Its identity and Spark Actions functions depend on a VivoKey account and the VivoKey service, so please confirm that the service covers what you need before you buy. The Spark 2 is MR conditional: tell the facility that you have one before any MRI examination. The VivoKey Spark 2 is a 13.56 MHz transponder sealed in biocompatible glass, 2.1 mm by 14 mm. It is ISO14443A and NFC Type 4 compliant, so NFC phones and ISO14443A USB readers can read it. Where an ordinary NFC tag simply hands over a fixed number that anyone can copy, the Spark 2 answers a challenge with an AES-128 calculation. That is the difference the product is built around: a reader can establish that this particular Spark 2 is present, rather than that something presented its ID. In use, the Spark 2 works together with the VivoKey service and a VivoKey account. With Spark Actions configured, a phone that scans it can open a URL, place a call, or start an SMS or an email. What it does is set in the account rather than stored on the implant, so you can change it at any time. Access control systems that enrol a credential by its ISO14443A UID can in some cases enrol a Spark 2 as a key. The Spark 2 is built for cryptographic identity and nothing else. It has no general purpose NDEF storage, so you cannot write your own files, text or URLs onto the implant itself. It does not make payments. It does not run applets and it is not the Tesla keycard product: that is the Apex, a different device. Read performance settles roughly 2 to 4 weeks after installation. As with every small cylindrical transponder, each reader has a narrow spot where the read works reliably, and it is worth finding that spot once on the readers you use every day. Dimensions 2.1 mm x 14 mm Housing 生体適合ガラス (bioglass) Standards ISO14443A / NFC Type 4 (13.56 MHz) Cryptography AES-128 (FIPS 197, CMAC per NIST SP 800-38B) NDEF user memory なし (none) Payment 非対応 (not supported) Sterilization 低温ガスプラズマ滅菌 (low-temperature gas plasma) Power パッシブ (passive, no battery) See the full page for this product xNT A 2.1 x 12 mm bioglass NFC implant with 886 bytes you write and rewrite yourself. 2.1×12mm NXP NTAG216 Every x-series implant, the xNT included, has a small ferrite rod core in its antenna. Dangerous Things, as the manufacturer, designates them MR Conditional and publishes an x-series MR advisory: up to 3 T, with the patient monitored throughout and the scan stopped at once if anything is felt. Before a scan, ask us on official LINE for the manufacturer's advisory to share with the imaging facility. Expect a local imaging artifact, tell the imaging staff exactly where the implant is, and understand that the facility decides on the day. The xNT is a passive NFC transponder sealed in a cylinder of biocompatible bioglass, 2.1 x 12 mm. Inside is an NXP NTAG216 (13.56 MHz, ISO14443A and NFC Type 2) with a fixed 7 byte UID and 886 bytes of user memory that you read and write yourself. It carries no battery and draws power from the reader's field only while a reader is held to it. It is read by NFC smartphones and by ISO14443A readers. Write a URL, contact details or arbitrary binary data with an ordinary NFC app, and an NFC phone that scans it reads it back. It also works with access systems that register the NTAG UID, but a UID can be read and copied, so do not make it your only key. The memory is rated for 100,000 writes per block and ten years of data retention. It leaves the factory with the lock bits disabled and the configuration bytes password protected. That is deliberate: many NFC apps offer a lock or protect button that would otherwise turn an implant permanently read only, and the configuration bytes sit where a careless write can overrun them. The user memory itself arrives fully writable. What it cannot do is equally clear. The UID is fixed, so no other credential's ID can be copied onto it. There is no secure element, so it is not for payment and is not a high assurance credential on its own. Anything written to it can be read by any NFC reader held close, so do not write anything you would not want a stranger to see. And because the antenna is a small cylinder rather than a flat card coil, the read range is short: every phone has a sweet spot that has to be found and used each time. Size 2.1 × 12 mm IC NXP NTAG216 Interface 13.56 MHz / ISO14443A / NFC Type 2 Housing 生体適合ガラス / Bioglass User memory 886 B UID 7 B Write endurance 100,000 Data retention 10年 / 10 years Peak performance 2〜4週間 / 2 to 4 weeks Chip datasheet : NXP NTAG216 xMagic Dual frequency cloning implant: writable MIFARE Classic 1k emulator plus T5577. Magic MIFARE Classic 1k emulator The xMagic is a programmable emulator. Please only copy credentials you are authorized by their issuer to duplicate. Programming is not done from the device itself: a Proxmark3 or comparable reader and programmer is required, and it is mandatory for the gen1a version. The xMagic holds two separate emulator ICs in one bioglass cylinder of 3 mm by 15 mm: a 13.56 MHz "magic" MIFARE Classic 1k emulator and a 125 kHz T5577. On an ordinary card the block that carries the ID is locked at manufacture. On both sides of the xMagic it is writable, so the device can be programmed to present the ID and data of many existing access badges, key fobs and cards. The HF side emulates a MIFARE MF1ICS50 1k with a 4 byte ID and a writable sector 0, rated for 10 year data retention and 100,000 writes per memory block. The LF side emulates EM41xx, EM4200, HID Prox, Indala and many other 125 kHz protocols, and ships configured in EM41xx mode with a 40 bit unique ID. Programming is done with an external reader and programmer, normally a Proxmark3. Two versions are offered: gen1a unlocks every sector with a backdoor command that cannot be sent from an Android phone, so a Proxmark3 is required, and some readers detect and reject gen1a devices. gen2 uses ordinary access bits and keys, can be programmed in the field with an Android app, and is harder for a reader to detect, but a sector can be locked out if it is programmed incorrectly. What the xMagic does not do: it has no NDEF support, so it cannot share data with a smartphone or trigger actions on an NFC device. It has no secure element and no cryptography, and it cannot be used for payment. Cards that use a 7 byte UID, such as MIFARE Plus and MIFARE Classic 1k EV1, cannot be copied completely, because the emulator supports only a 4 byte ID. Read range: the coil inside an x-series device is a small cylinder, and most readers and phones have flat rectangular antennas shaped for cards and labels, so the two do not couple as well. Expect to find a sweet spot on each reader rather than the range you get from a card. Frequencies 13.56 MHz + 125 kHz HF chip Magic MIFARE Classic 1k emulator (gen1a / gen2) LF chip T5577 Dimensions 3 mm × 15 mm Housing 生体適合ガラス (bioglass) + epoxy Data retention 10 years / 100,000 writes Peak performance 2〜4週間 (2 to 4 weeks) Payment 非対応 (not supported) Chip datasheet : Microchip ATA5577C (125 kHz side) xDF MIFARE DESFire implant: DESFire access control, DES, 3DES and AES, 8 kB of memory. MIFARE DESFire The DESFire generation supplied (EV1, EV2 or EV3) depends on what is available from the manufacturer at the time of stocking. If your access control system requires a specific generation, please confirm with us before ordering. The xDF is our DESFire option: an x-series implant carrying a MIFARE DESFire IC and working at 13.56 MHz. It suits access control systems built on DESFire rather than on a bare UID, supports DES, 3DES and AES on the chipset itself, and offers about 8 kB of memory for data the customer chooses to store. One thing to settle before ordering. DESFire exists in several generations (EV1, EV2, EV3), and the generation supplied is whichever one can be sourced at the time. If your access control system requires a specific generation, please ask us to confirm what is in stock before you order. What it does not do: payment is not supported, the UID cannot be changed and other card types cannot be emulated, and there is no illumination and no sensor. Frequency 13.56 MHz Chipset MIFARE DESFire (EV generation varies) Cryptography DES / 3DES / AES User memory 8 kB Peak performance 2〜4週間 (2 to 4 weeks) Payment 非対応 (not supported) Chip datasheet : NXP MIFARE DESFire inferred xM1 MIFARE Classic 1k emulator with a writable sector 0, sealed in bioglass 3×13mm The xM1 is intended for access systems you own or administer. Writing a credential to it is your responsibility, and it should only be done with IDs you are entitled to use. On the gen2 variant, an incorrect access bit configuration can lock a sector permanently. Read the access bit documentation before writing, and be deliberate. MIFARE Classic is a legacy technology whose cryptography has been broken for many years. The xM1 carries no secure element. It is not suitable for secure identification or for payment, and data written to it can be read by any reader brought near it. The x-series has not been certified by any government regulatory agency for implantation. The xM1 is a 13.56 MHz MIFARE Classic 1k emulator in a bioglass cylinder, 3 mm across and 13 mm long, sealed with a non-toxic medical epoxy. What separates it from an ordinary MIFARE Classic transponder is that sector 0, the manufacturer block that holds the 4 byte NUID, is writable. Every page of every sector can be overwritten, so the device can be set to present the ID and contents of a MIFARE Classic 1k badge, fob or card from a system you administer. Two variants exist and they differ only in how sector 0 is opened for writing. The gen2 uses the normal MIFARE access bits and keys A and B, exactly as it does for any other sector, which means it can be programmed in the field from an Android phone running MIFARE Classic Tool, with no dedicated hardware. It is also much harder for a reader to detect as an emulator. The trade off is that a mistake in the access bit configuration can lock you out of a sector permanently. The gen1a instead accepts a special backdoor command that disables all keys and access control across every sector, so no sector can ever be locked out. That command cannot be sent from an Android app and needs a programmer such as a Proxmark3, and some readers actively look for gen1a behavior and reject it. Only 4 byte IDs are supported. A source card must be a genuine 4 byte MIFARE Classic 1k; the newer 7 byte types such as MIFARE Classic 1k EV1 and MIFARE Plus 1k cannot have their full ID reproduced here. The xM1 has no NDEF support, so it does not share data with NFC phones and does not trigger actions on them. It is 13.56 MHz only, with no 125 kHz side. It cannot be used for payments. Dimensions 3 mm diameter x 13 mm Encapsulation Bioglass + medical epoxy / 生体適合ガラス、医療用エポキシ Frequency 13.56 MHz Standard ISO 14443A, MIFARE Classic 1k (MF1ICS50) emulation ID 4 byte NUID, sector 0 writable Variants gen1a / gen2 Data retention 10 years / 10年, 100,000 writes per block Time to peak performance 2 to 4 weeks / 2〜4週間 MRI MR conditional xSLX ISO15693 / NFC Type 5 glass implant, 2.1 mm x 12 mm, 320 bytes of user memory. 2.1×12mm NXP ICODE SLIX2 The xSLX has not been certified by any government regulatory agency for implantation, and the decision to have one is taken at the customer's own risk. Dangerous Things rates its x-series glass implants as MR conditional: tell the facility that you have an implant before any MRI or other imaging procedure. Because there is no secure element and no cryptography, anything written to the memory can be read by any ISO15693 reader nearby, so do not store anything you would not want read. The xSLX is a passive 13.56 MHz transponder sealed in a cylindrical bioglass capsule measuring 2.1 mm by 12 mm. Inside is an NXP ICODE SLIX2, which follows ISO15693, the standard the NFC Forum lists as NFC Type 5. It has no battery and no power source of its own: it takes the energy it needs from the field the reader in front of it generates. It carries an 8 byte fixed UID and 320 bytes of read and write memory. What goes into that memory is the customer's choice and stays under the customer's control. Data retention is rated at 50 years, with 100,000 writes per memory block. NFC capable smartphones can read and write it, and USB ISO15693 desktop readers, ISO15693 door locks, gun safes and padlocks will respond to the UID. The UID is fixed at manufacture, so the ID of an existing card or key fob cannot be copied onto an xSLX. The system you intend to use has to be told this UID instead. There is no secure element and no cryptography, so it is not suitable for payment or for secure identification, and whatever is written to its memory can be read by any ISO15693 reader nearby. ISO15693 keyboard wedge readers are uncommon, which also makes it a poor choice for computer login. VivoKey Japan requires installation by a physician, who is responsible for it, as its own safety and quality standard. Chip NXP ICODE SLIX2 Standard ISO15693 / NFC Type 5, 13.56 MHz Dimensions 2.1 mm x 12 mm Housing 生体適合ガラス / Bioglass Memory 320 bytes user memory, 8 byte UID Data retention 50 years, 100,000 writes per block Peak performance 2-4 weeks Chip datasheet : NXP ICODE SLIX2 NExT v2 Dual frequency glass implant: 13.56 MHz NFC and 125 kHz RFID, with an LED. 3.1×15mm The NExT v2 has not been certified by any government regulatory agency for implantation, and the decision to have one is taken at the customer's own risk. Dangerous Things rates its x-series glass implants as MR conditional: tell the facility that you have an implant before any MRI or other imaging procedure. Anything written to the NFC memory can be read by any NFC reader nearby, so do not store anything you would not want read. The NExT v2 puts two transponders in one cylindrical bioglass capsule of 3.1 mm by 15 mm: a 13.56 MHz NFC device and a 125 kHz RFID device. They work independently of each other, so a single product answers two families of reader that would otherwise need two separate credentials. The 13.56 MHz side is an NXP NTAG I2C, ISO14443A and NFC Type 2, with a 7 byte fixed UID and 888 bytes of user writable memory: a URL, contact details, or arbitrary binary data, readable and writable from any NFC capable smartphone. An LED is wired to the energy harvesting pins of that same chip, so it lights inside a reader field without drawing power away from the NFC circuit. VivoKey Japan stocks the LED in green and blue, and white is available by special order. It has never been produced in red. The 125 kHz side is an Atmel T5577, shipped pre-programmed with a 40 bit EM41xx ID. Unlike the NFC UID, this side can be rewritten. It emulates EM41xx, EM4200 and other common low frequency formats, so it can be set to the ID an existing 125 kHz reader already expects. It cannot be used for payment. Neither side has a secure element or cryptography, so it is not suitable for secure identification, and anything written to the NFC memory can be read by any NFC reader nearby. Chips NXP NTAG I2C + Atmel T5577 Standards 13.56 MHz ISO14443A / NFC Type 2, 125 kHz Dimensions 3.1 mm x 15 mm Housing 生体適合ガラス / Bioglass NFC memory 888 bytes user memory, 7 byte UID NFC data retention 10 years, 100,000 writes per block 125 kHz side T5577, pre-programmed EM41xx 40 bit ID LED Green / Blue / White Peak performance 2-4 weeks Chip datasheet : NXP NTAG I2C Plus See the full page for this product xSIID Writable NFC implant in 2.1 x 15 mm bioglass, with an LED lit by the reader's field. 2.1×15mm NXP NTAG I2C Plus 2K The x-series is MR Conditional: the antenna is wound on a small ferrite core. Dangerous Things, as the manufacturer, publishes an MR advisory for the x-series, with conditions of up to 3 T and the patient observed throughout. Before a scan, ask us on official LINE for the manufacturer's advisory to share with the imaging facility. Expect a local artifact in the image near the implant, tell the imaging staff where it sits, and the imaging facility makes the decision on the day. The xSIID is a passive 13.56 MHz NFC transponder sealed in a cylinder of biocompatible glass, 2.1 mm across and 15 mm long. Inside it is an NXP NTAG I2C Plus 2K chipset and an LED wired to the chipset's energy harvesting output, so the LED lights while a reader is powering the implant and is dark the rest of the time. VivoKey Japan stocks the red and the white LED. The memory is yours to write and rewrite from a compatible smartphone: a URL, a contact card, the trigger for a phone automation. There are 1912 bytes of user memory in total, of which the first 868 or so are what current phone apps reach. It reads on ordinary NFC phones and readers, though the antenna inside an implant is small and cylindrical, so every reader has a spot and an angle where the two antennas couple well, and you learn where that is on the readers you use. It is not a secure element. It holds no keys and performs no cryptography, so it is not a credential for payment or for identification that has to be trusted. VivoKey Japan does not offer payment-capable implants. Anything written to it can be read by any NFC reader held close to it, so it is not the place for information you would not show a stranger. The blue and green LED versions are sold out and discontinued worldwide. Size 2.1 × 15 mm Radio standard 13.56 MHz, NFC Forum Type 2, ISO 14443A Core IC NXP NTAG I2C Plus 2K User memory 1912 bytes (約868バイトがスマートフォンから到達可能 / about 868 reachable from a phone) LED Red / White Data retention 10 years / 10年 Write cycles per block 100,000 Peak performance 2-4 weeks / 2〜4週間 MRI MR Conditional (up to 3 T) Chip datasheet : NXP NTAG I2C Plus 2K See the full page for this product xEM 125 kHz T5577 implant in 2.1 x 12 mm bioglass that can present itself as legacy LF cards. 2.1×12mm Atmel T5577 Low frequency credentials of this class carry no encryption. A badge that can be copied onto the xEM can equally be read off it by anyone holding a low frequency cloner close enough, so please do not treat it as a security measure. The x-series is MR Conditional: the antenna is wound on a small ferrite core. Dangerous Things, as the manufacturer, publishes an MR advisory for the x-series, with conditions of up to 3 T and the patient observed throughout. Before a scan, ask us on official LINE for the manufacturer's advisory to share with the imaging facility. Expect a local artifact in the image near the implant, tell the imaging staff where it sits, and the imaging facility makes the decision on the day. The xEM is a passive 125 kHz transponder sealed in biocompatible glass, 2.1 mm across and 12 mm long. The part inside is an Atmel T5577, a writable low frequency emulator: rather than carrying one fixed identity, it can be programmed to behave like a number of common low frequency card and fob types, among them EM41xx, EM4200, HID ProxCard II and III, Indala, Pyramid, Viking, AMV and Presco. It ships preprogrammed in EM41xx mode with a 40 bit unique ID. Writing it takes a 125 kHz writer, a Proxmark3 or similar, held against the implant. That is what makes the xEM a practical answer for an existing low frequency door or gate: the credential the reader already accepts can be written onto the implant, with no change at the reader. It also works with a wide range of inexpensive low frequency readers and standalone access controllers. 125 kHz is not NFC. No smartphone reads this implant, it shares no data with phones, it triggers nothing on a phone, and it is not used for payment. It is also not a security product: credentials of this class carry no encryption and identify themselves to anything that asks. Which reader accepts which emulated type has to be checked case by case, so tell us the reader model and we will answer what we can. Size 2.1 × 12 mm Radio standard 125 kHz Core IC Atmel T5577 Factory setting EM41xx, 40 bit ID Emulates EM41xx, EM4200, HID ProxCard II / III, Indala, Pyramid, Viking, AMV, Presco Writing tool Proxmark3 (125 kHz) Peak performance 2-4 weeks / 2〜4週間 MRI MR Conditional (up to 3 T) Chip datasheet : Microchip ATA5577C xHT 125 kHz HITAG S2048 implant in 2.1 x 12 mm bioglass, for ISO 14223 access systems. 2.1×12mm NXP HITAG S2048 The challenge and response scheme on this part is the manufacturer's own, and published attacks against it exist. It is a step up from an unencrypted low frequency card, and it is not a security product; please do not put it in front of anything that has to hold. The x-series is MR Conditional: the antenna is wound on a small ferrite core. Dangerous Things, as the manufacturer, publishes an MR advisory for the x-series, with conditions of up to 3 T and the patient observed throughout. Before a scan, ask us on official LINE for the manufacturer's advisory to share with the imaging facility. Expect a local artifact in the image near the implant, tell the imaging staff where it sits, and the imaging facility makes the decision on the day. The xHT is a passive 125 kHz transponder sealed in biocompatible glass, 2.1 mm across and 12 mm long. The part inside is a HITAG S2048, compliant with ISO 14223 and also with ISO 11784 and ISO 11785 for animal identification and ISO 18000-2 for low frequency asset management. It carries 2048 bits of user read and write memory. It exists for a narrow reason: some installed systems speak HITAG S and nothing else, and this is the implant that answers them. Unlike most low frequency parts, it supports a challenge and response exchange based on a 48 bit secret key, so the reader can ask it to prove itself rather than simply accepting the number it announces. Two limits are worth stating plainly. First, 125 kHz is not NFC: no smartphone reads this implant, it shares no data with phones, and it is not used for payment. Second, the authentication scheme is the manufacturer's own and published attacks against it exist, so read it as better than an open low frequency card rather than as a security product. Its identity is fixed and it does not emulate other tag types; for that, the xEM is the part. Size 2.1 × 12 mm Radio standard 125 kHz, ISO 14223 Core IC NXP HITAG S2048 User memory 2048 bits Authentication 48 bit secret key, challenge and response Also compliant with ISO 11784 / 11785, ISO 18000-2 Peak performance 2-4 weeks / 2〜4週間 MRI MR Conditional (up to 3 T) Chip datasheet : NXP HITAG S2048 flex 8 Thin, flat implants such as Apex Narrow and flexNT. Apex Flex Implantable Java Card security key in three antenna formats, applets deployed via Fidesmo. 8×28mm The Apex Flex does not make payments. Payment is disabled on the device, and VivoKey Japan does not offer payment capable implants in Japan. Placement matters more than it does for an x-series product. Fingers are a poor location because tendons and nerves are packed tightly there; the back of the hand, the forearm or the wrist are easier to work with. Always follow the judgment of the physician performing the installation. The biopolymer is tested to ISO 10993 and USP Class VI as a raw material. The finished product has not been tested after processing. Deploying applets requires a Fidesmo account, and the applets offered on that platform can change over time. Please confirm that the applet you need is available before you buy. The Apex Flex is a Java Card security key in an implantable format. It runs JCOP 4 and Java Card 3.0.5, carries 83,872 bytes of application EEPROM, and supports RSA up to 4096 bit, ECC up to 521 bit, AES-128, AES-192, AES-256 and 3DES. The platform holds Common Criteria EAL 6+ certification. What an Apex actually does is not fixed at the factory: you choose applets on the Fidesmo platform and deploy them to it, and you can change them later. Available applets include a one time password authenticator for two factor login, U2F and FIDO2 security key applets, PGP, and NFC Share for handing over 1 kB to 32 kB of data with a scan. It can also be registered as a keycard for the Tesla Model 3 and Model Y, and for the Model S and Model X from 2021 onward. Everything is managed from a phone with the VivoKey Apex Manager app and the Fidesmo app. There are three antenna formats and they install very differently. It is the easiest to place and gives the widest choice of location, and it has the shortest read range of the three. Module is 14 mm by 35 mm with a longer read range, and it needs an advanced installation. Spectrum is a disc, 22 mm across and 1.9 mm thick, with an RGB LED, and it also needs an advanced installation. The body is a biopolymer whose raw material is tested to ISO 10993 and USP Class VI. Each unit is gas plasma sterilized in a sealed Tyvek pouch carrying a lot label, with a second polymer pouch around it. Read performance settles roughly 4 to 8 weeks after installation. Platform JCOP 4 / Java Card 3.0.5 Application EEPROM 83,872 bytes Cryptography RSA (to 4096) / ECC (to 521) / AES-128, 192, 256 / 3DES Certification Common Criteria EAL 6+ Standards ISO14443A / NFC (13.56 MHz) NFC Share capacity 1 kB to 32 kB Antenna: Narrow 8 mm x 28 mm Antenna: Module 14 mm x 35 mm Antenna: Spectrum 22 mm x 1.9 mm (RGB LED) Material バイオポリマー (ISO 10993 / USP Class VI) Sterilization ガスプラズマ滅菌 (gas plasma) Payment 非対応 (not supported) Chip datasheet : NXP SmartMX3 P71 (JCOP 4) inferred See the full page for this product flexNT The same NTAG216 as the xNT, in a flat 9 x 22 mm package with far better read range. 9×22mm NXP NTAG216 A flex device is only semi flexible. It must not be placed under a gripping surface such as the palm, and not on or parallel to a joint. Placement is the physician's call, and the back of the hand or the forearm is an easier site than a finger. The biopolymer is tested and certified to ISO 10993 and USP Class VI as a material; the finished implant is not certified by any regulatory authority for implantation. The flexNT carries the same NXP NTAG216 as the xNT, in a flat flexible biopolymer package of 9 x 22 x 0.4 mm. The difference is the antenna. A wide flat coil couples far better with the flat coils inside phones and reader panels than a small glass cylinder can, so read range and consistency are in a different class. Functionally it is the same transponder: 13.56 MHz, ISO14443A and NFC Type 2, a fixed 7 byte UID, and 886 bytes of user memory you write yourself. Store a URL, a vCard or arbitrary data and share it with any NFC phone, trigger automations on a phone that scans it, or use the UID as a credential in an access control system that reads NTAG UIDs. Lock bits are disabled and the configuration bytes are password protected at the factory, so a stray lock button in an NFC app cannot make it read only. The limits are the NTAG's limits. The UID is fixed and cannot be set to match another credential. There is no secure element, so no payment and no high assurance identity. Anything written to it is readable by any reader held close. A flex is placed differently from a glass implant. Size 9 × 22 × 0.4 mm IC NXP NTAG216 Interface 13.56 MHz / ISO14443A / NFC Type 2 Housing バイオポリマー / Biopolymer User memory 886 B UID 7 B Peak performance 4〜8週間 / 4 to 8 weeks Chip datasheet : NXP NTAG216 flexClass An HID iClass legacy credential in implant form, for a reader system you already run. 8×25mm HID iClass legacy 2 kB Confirm your reader system before you order. flexClass works only with HID iClass legacy and standard systems. A site that turns out to be iClass SE or SEOS cannot be made to work with it afterwards, and there is no way back once the implant is in a hand. Confirm as well that your administrator will enroll it, or that you are able to copy a credential you already hold. The flexClass is a flex implant, about 8 x 25 mm and 0.4 mm thick, in the same biopolymer as the other flex products. Inside is a programmable 2 kB HID iClass transponder of the legacy (standard) type, at 13.56 MHz. It ships in personalization mode, so a credential can be written to it. This is an access control product for one specific corporate ecosystem, and it only makes sense if you already know what your building runs. It works with iClass legacy and standard systems. It does not work with iClass SE or iClass SEOS. iClass is a marketing name rather than a single protocol, so identifying the reader system is work that has to happen before ordering, not after. There are two ways into a system. Enrollment is the normal route: your security administrator presents the flexClass to the enrollment reader exactly as they would a new card or fob, although some installations refuse to enroll a blank credential. The other route is copying a credential you already legitimately hold onto it with a Proxmark3, with the agreement of whoever operates the system. It is not an NFC data carrier. Ordinary smartphones cannot read it, nothing can be shared from it, and it does not make payments. The proprietary cryptography used by iClass legacy has been publicly broken for years, so treat the flexClass as a more convenient form of a credential you already carry, never as a security improvement over the card in your pocket. Size 8 × 25 × 0.4 mm IC HID iClass legacy 2 kB Interface 13.56 MHz Housing バイオポリマー / Biopolymer Compatible with iClass legacy / standard Not compatible with iClass SE / iClass SEOS Smartphone 非対応 / Not supported Peak performance 4〜8週間 / 4 to 8 weeks flexSecure An open Java Card platform implant, in the same three antenna formats as the Apex. You add and manage the applets yourself. 8×28mm flexSecure is a developer product, and it is the one implant we list that can permanently disable itself. Its secure element locks after a set number of failed authentication attempts against the card manager, and a locked card cannot be unlocked by anyone: not by you, not by VivoKey Japan, not by the manufacturer. Change the master key and then lose it or mistype it, and what is left in your hand is an implant that will never respond again, with nothing to be done about it except have it taken out. It also costs roughly what an Apex costs, which makes it easy to read as the same implant with more freedom for the same money. It is not that. If you are not already comfortable with GlobalPlatform key management and loading Java Card applets yourself, the Apex is the product you want. The flexSecure is an open Java Card platform in implant form: an 8 x 28 mm flex containing a JCOP 4 secure element running Java Card 3.0.5, with 167,736 bytes of EEPROM available for applets. The silicon carries Common Criteria EAL 6+ certification and supports RSA up to 4096 bits, ECC up to 521 bits, AES-128/192/256 and 3DES. It ships with the factory default master key, so a developer can load applets on the first day. What runs on it is entirely your decision, taken from the open source applet collection: FIDO2 for passwordless sign-in and second factor, SmartPGP for encryption, signing and key generation on the card itself, SatoChip, Satodime and SeedKeeper for cryptocurrency, Keycard, and NDEF if you also want plain NFC data sharing. You add the applets yourself, using a tool capable of loading Java Card applets over NFC. It is not an Apex. There is no Fidesmo platform behind it, which means no managed applet store, no Tesla keycard and no VivoKey OTP. No applet is added for you, nothing is provisioned for you, and there is no recovery service standing behind it. It does not make payments. The freedom and the responsibility are the same thing. Three antenna formats are offered: Narrow, Module and Spectrum. The dimensions above are for the Narrow. Antenna: Narrow 8 mm x 28 mm Antenna: Module 14 mm x 35 mm Antenna: Spectrum 22 mm x 1.9 mm (RGB LED) Platform JCOP 4 / Java Card 3.0.5 Available EEPROM 167,736 B Certification Common Criteria EAL 6+ Cryptography RSA 4096 / ECC 521 / AES-256 / 3DES Interface 13.56 MHz / ISO14443A Antenna options (same three as Apex) Narrow / Module / Spectrum Housing バイオポリマー / Biopolymer Peak performance Narrow 4〜8週間 / Module・Spectrum 2〜6か月 (Narrow 4 to 8 weeks / Module, Spectrum 2 to 6 months) Chip datasheet : NXP SmartMX3 P71 (JCOP 4) inferred flexM1 v2 MIFARE Classic 1k emulator with a writable sector 0, in a 0.65 mm flex package 10.25×13.5mm The flexM1 v2 is intended for access systems you own or administer. Writing a credential to it is your responsibility, and it should only be done with IDs you are entitled to use. An incorrect access bit configuration can lock a sector permanently. MIFARE Classic is a legacy technology whose cryptography has been broken for many years, and this device holds no secure element, so it is not suitable for secure identification or for payment. Emulator devices of this type are sourced from unbranded Chinese suppliers. Dangerous Things does not guarantee their behavior or performance, and they carry limited warranty cover rather than the full warranty applied to the rest of the range. Fingers are a poor choice despite what product photographs often suggest: the back of the hand, the wrist or the arm are easier sites. The biopolymer is ISO 10993 and USP Class VI tested, but the finished product has not been tested after processing. The flexM1 v2 is a 13.56 MHz MIFARE Classic 1k emulator in a flat biopolymer package, 10.25 mm by 13.5 mm and only 0.65 mm thick. Sector 0, the manufacturer block that holds the 4 byte NUID, is writable, so the device can be set to present the ID and contents of a MIFARE Classic 1k badge, fob or card from a system you administer. The antenna in a flat package of this size couples with ordinary readers more readily than the small cylindrical coil inside an x-series glass product. Two variants are offered. The gen2 writes to block 0 through the standard MIFARE access bits and keys, so it can be programmed from an Android phone running MIFARE Classic Tool, or from a Proxmark3, and most readers cannot detect it as an emulator. The ZUID is a gen1a device with gen2 direct write available as well, not enabled by default, so it supports both approaches. The flexM1 v2 has no NDEF support, so it does not share data with NFC phones and does not trigger actions on them. It is 13.56 MHz only, with no 125 kHz side, and cannot be used for payments. It holds no secure element, so anything written to it can be read by any reader brought near it. Performance settles over four to eight weeks as the site heals. Dimensions 10.25 mm x 13.5 mm x 0.65 mm Encapsulation Biopolymer / バイオポリマー (ISO 10993, USP Class VI) Frequency 13.56 MHz Standard ISO 14443A, MIFARE Classic S50 1k emulation ID 4 byte NUID, sector 0 writable Variants gen2 / ZUID Data retention 10 years / 10年, 100,000 writes per block Time to peak performance 4 to 8 weeks / 4〜8週間 flexUG4 Ultimate Magic gen4 emulator, 13.56 MHz only, in an 8 mm by 28 mm flex package 8×28mm Ultimate Magic gen4, version 06 A0 Please read this before ordering. Dangerous Things withdrew the first build of the flexUG4 and re-engineered the product. That first build reused antennas that had been made for a different chip, and read performance was poor on a large share of the units produced. An antenna tuned specifically for this chip was then developed, and the current build uses it. No read range figure has been published for either build, and VivoKey Japan will not quote one. Emulator devices of this type are sourced from unbranded Chinese suppliers. Dangerous Things does not guarantee their behavior or performance; the flexUG4 carries one year of warranty cover. The flexUG4 is intended for access systems you own or administer, and credentials should only be written to it where you are entitled to use them. Fingers are a poor choice despite what product photographs often suggest. The biopolymer is ISO 10993 and USP Class VI tested, but the finished product has not been tested after processing. The flexUG4 is an Ultimate Magic gen4 emulator (version 06 A0) in a flexible biopolymer package, 8 mm by 28 mm. Where a magic MIFARE device emulates one chip type, the gen4 can be configured to present itself as a range of 13.56 MHz transponder types: MIFARE Mini, Classic 1k and 4k with 4, 7 or 10 byte UIDs, MIFARE Ultralight EV1, and NTAG 210, 212, 213, 215 and 216. The configurable parameters go beyond the UID. UID length, SAK, ATQA and ATS can all be set, which is what lets one device answer a reader the way a particular card type would. Sector 0, the manufacturer block, is writable. What a phone or a reader can do with the device therefore depends entirely on which type it is currently configured to emulate. Configuration is done with a Proxmark3, most straightforwardly through the hf_mf_ultimatecard LUA script. There is no Android app route for the full parameter set, so this is a product for people who already own the tooling and understand the access ecosystem they are working in. The flexUG4 is 13.56 MHz only, with no 125 kHz side. It holds no secure element, so it cannot be used for payments and is not suitable for secure identification. Dimensions 8 mm x 28 mm Encapsulation Biopolymer / バイオポリマー (ISO 10993, USP Class VI) Frequency 13.56 MHz Chip Ultimate Magic gen4, version 06 A0 Emulation MIFARE Mini / Classic 1k / Classic 4k, Ultralight EV1, NTAG 210/212/213/215/216 ID 4, 7 or 10 byte UID, sector 0 writable Configurable parameters UID, UID length, SAK, ATQA, ATS Programming Proxmark3 (hf_mf_ultimatecard) Time to peak performance 4 to 8 weeks / 4〜8週間 flexDF Flat DESFire EV2 implant with 8 kB of encrypted memory and long read range. 8×28mm NXP MIFARE DESFire EV2 The flexDF has not been certified by any government regulatory agency for implantation, and the decision to have one is taken at the customer's own risk. The biopolymer is tested to ISO 10993 and USP Class VI, but the finished product has not been retested after processing. Dangerous Things does not publish an MR conditional rating for the flex range, so tell the facility that you have an implant before any MRI or other imaging procedure. Placement matters with a flat device: never under a gripping surface, never across a joint. The flexDF is a flat, semi flexible implant: an NXP MIFARE DESFire EV2 on a biopolymer body measuring 8 mm by 28 mm by 0.5 mm. The antenna is far larger than the one inside an x-series glass implant, and the read range is correspondingly better. That is most of the reason to choose this shape. Dangerous Things lists the current generation as the flexDF2. DESFire EV2 is the credential format behind a great many corporate and campus access systems. It holds 8 kB of user memory in a multi application file structure, with hardware AES-128 and 3DES, mutual three pass authentication, up to 14 keys per application, and Common Criteria EAL5+ certification for both hardware and software. The UID is 7 bytes, and a random UID mode is available. Data retention is rated at 25 years, with 500,000 writes per memory block. This product only makes sense when the target system is already known. DESFire is not a credential you clone: the reader side has to accept a new credential, and somebody holding the keys has to enrol it. The flexDF cannot copy the ID of an existing card, it cannot be used for payment, and it does not work at 125 kHz, so legacy low frequency readers will not see it. Please confirm with the operator of the system you intend to use before ordering. A flex product is installed differently from the x-series. It must not be placed under a gripping surface or across a joint. VivoKey Japan requires installation by a physician, who is responsible for it, as its own safety and quality standard. Please contact us to confirm availability before ordering. Chip NXP MIFARE DESFire EV2 Standard ISO14443A / NFC Type 4, 13.56 MHz Dimensions 8 mm x 28 mm x 0.5 mm Housing Biopolymer (ISO 10993, USP Class VI) Memory 8 kB user memory, 7 byte UID Cryptography AES-128, 3DES, Common Criteria EAL5+ Data retention 25 years, 500,000 writes per block Peak performance 4-8 weeks Chip datasheet : NXP MIFARE DESFire EV2 flexEM 125 kHz T5577 disc implant that can be programmed to emulate legacy LF formats. ⌀20mm Atmel T5577 The flexEM has not been certified by any government regulatory agency for implantation, and the decision to have one is taken at the customer's own risk. The biopolymer is tested to ISO 10993 and USP Class VI, but the finished product has not been retested after processing. Dangerous Things does not publish an MR conditional rating for the flex range, so tell the facility that you have an implant before any MRI or other imaging procedure. A 125 kHz ID is not a secret: any 125 kHz reader can read it, and the format can be copied. The flexEM is a 125 kHz low frequency transponder built around an Atmel T5577, mounted on a 20 mm disc antenna in a biopolymer body 1.3 mm thick. The disc gives it considerably more range than the xEM. The T5577 is an emulator. It can be programmed to behave like most of the common low frequency formats: EM41xx, EM4200, HID ProxCard II and III, Indala, Pyramid, Viking, AMV, Presco and others. For a customer who already has a 125 kHz reader system and can obtain or write the correct ID, that is the whole point of the product. It is low frequency only. It does not answer NFC smartphones and it does not answer 13.56 MHz readers, so there is no data sharing and no phone interaction of any kind, and it cannot be used for payment. It makes sense only where the reader system is already confirmed to be 125 kHz and the ID can be set. It is also the slowest of these products to settle, typically two to six months. Dangerous Things has discontinued the flexEM and replaced it with the dT5. Please contact VivoKey Japan about current availability. Chip Atmel T5577 Frequency 125 kHz Dimensions 20 mm diameter x 1.3 mm Housing Biopolymer (ISO 10993, USP Class VI) Emulation EM41xx, EM4200, HID ProxCard II/III, Indala, Pyramid, Viking, AMV, Presco Peak performance 2-6 months Chip datasheet : Microchip ATA5577C bioresin d-series 4 Hard bioresin pieces such as dT5 and dNExT. dT5 T5577 125 kHz T5577 emulator in an 18 mm bioresin disc, with far better range than x-series. 2.3×18mm T5577 125 kHz formats of this kind transmit a fixed ID with no cryptographic protection. Anyone with a compatible 125 kHz reader can read that ID and copy it onto another credential. Treat the dT5 as convenience rather than security, and do not use it to protect anything that matters. It must not go under a gripping surface, for example anywhere on the palm side of the hand, and it must not be placed over a joint or parallel to one. The bioresin is a USP Class VI certified material. The finished product has not been tested after processing. The dT5 is a 125 kHz RFID transponder in a disc format, 18 mm across and 2.3 mm thick. The T5577 inside it is an emulator, which means it can be written to behave like a range of common low frequency formats: EM41xx, EM4200, HID 1326 ProxCard II, HID 1346 ProxCard III, Indala, Pyramid, Viking, AMV, Presco and others. The usual way people use one is to read the ID from an existing 125 kHz card or keyfob and write it to the dT5. Because the antenna is a full disc rather than a small cylinder, read range is substantially better than an x-series low frequency product. It works with a wide range of ordinary 125 kHz readers and stand alone access controllers, including our own xEM Access Controller. The dT5 is 125 kHz only. It does not do 13.56 MHz and it has no NFC function, so phones cannot read it, it cannot hand data to a phone, and it cannot trigger anything on a phone. It does not make payments. The body is coated in USP Class VI bioresin, which gives it a thin profile and a rigid structure. Each unit is gas plasma sterilized in a sealed Tyvek pouch inside a polymer bag, and it can be function tested before the pouch is opened. Dimensions 18 mm x 2.3 mm Frequency 125 kHz IC T5577 Emulates EM41xx, EM4200, HID ProxCard II / III, Indala, Pyramid, Viking, AMV, Presco 13.56 MHz / NFC 非対応 (not supported) Material バイオレジン (USP Class VI bioresin) Sterilization ガスプラズマ滅菌 (gas plasma) Power パッシブ (passive, no battery) Chip datasheet : Microchip ATA5577C VivoKey Thermo ISO15693 implant with AES-128 authentication, 2 kB of memory and a temperature sensor. We do not sell or describe VivoKey Thermo as a medical device. It is not a certified thermometer either. The sensor reports the temperature of the device itself, which varies with where it sits and is not body or core temperature, and the value must not be used for medical, diagnostic or health monitoring purposes. VivoKey Thermo is a 13.56 MHz transponder compliant with ISO15693 and NFC Type 5, encased in a bioresin cylinder of 3.1 mm by 22 mm with non-toxic epoxy. It carries AES-128 cryptography compliant with FIPS PUB 197, using a 2 byte payload salt, about 2 kB of user memory, and a temperature sensor. The cryptographic function is what backs VivoKey's Verify API: an app or service can challenge the device and confirm it is the one it claims to be, rather than trusting a UID that any reader can copy. Readers that enrol a tag by its UID can register it too, but a UID can be read by anyone, so keep that to low-risk personal uses. The 2 kB of memory holds data the customer chooses and controls. The sensor reports the temperature of the device at the moment it is read, as a number returned to the reading application. Readings are taken with a compatible application on an Android phone or on a Flipper Zero, which can keep a separate history per device and export it as CSV. We do not sell or describe VivoKey Thermo as a medical device, and the readings are not for any medical, diagnostic or health purpose. What it does not do: no payment, no changeable UID and no emulation of other card types, no illumination, and no 125 kHz side. It is read by ISO15693 and NFC Type 5 readers only. As with every cylindrical device, the coil couples less efficiently with the flat antennas built into phones and USB readers, so expect to find a sweet spot on each reader rather than card-like range. Standard 13.56 MHz ISO15693 / NFC Type 5 Cryptography AES-128 (FIPS PUB 197) User memory 2 kB Sensor 温度センサー (temperature) Dimensions 3.1 mm × 22 mm Housing バイオレジン (bioresin) + epoxy Peak performance 2〜4週間 (2 to 4 weeks) Payment 非対応 (not supported) dUG4T Dual frequency magic emulator in a rigid bioresin disc, 40 mm antenna for longer range. ⌀40mm Ultimate Magic gen4 The gen4 magic silicon comes from unbranded suppliers, so correct function and performance cannot be guaranteed as they are for a branded IC. The dUG4T pairs an Ultimate Magic gen4 emulator (version 06 A0) for 13.56 MHz with a T5577 for 125 kHz, in one rigid bioresin disc. Both sides are rewritable, including sector 0, the manufacturer block that is locked on an ordinary card, so the device can be configured to present the identity of a wide range of existing HF and LF transponders. On the HF side it emulates ISO14443A types: MIFARE Mini, 1k and 4k with 4, 7 or 10 byte UIDs, MIFARE Ultralight EV1, and NTAG 210, 212, 213, 215 and 216. UID, UID length, SAK, ATQA and ATS are all configurable. Whether a smartphone can read data from it depends on the profile it is configured for: in an NTAG profile it can carry NDEF content a phone reads and acts on, in a MIFARE Classic profile it cannot. On the LF side it emulates EM410X, EM4200, HID ProxCard II and III, Indala, Pyramid, Viking, AMV, Presco and more. Programming both sides is done with a Proxmark3. The reason to choose this form over an x-series device is the antenna. A 40 mm disc couples with readers far better than a small cylindrical coil, so read range is substantially longer. Performance settles over 2 to 6 months. What it does not do: no cryptography, no secure element, and no payment. The gen4 magic silicon comes from unbranded suppliers rather than a major transponder manufacturer, so function and performance are not guaranteed the way they are for a branded IC. Frequencies 13.56 MHz + 125 kHz HF chip Ultimate Magic gen4 (version 06 A0) LF chip T5577 UID 4 / 7 / 10 byte, sector 0 writable Antenna 40 mm ディスク (disc) Housing リジッドバイオレジン (rigid bioresin, USP Class VI) Peak performance 2〜6か月 (2 to 6 months) Payment 非対応 (not supported) Chip datasheet : Microchip ATA5577C (125 kHz side) dNExT A 40 mm bioresin disc holding an NTAG216 NFC inlay and a T5577 125 kHz emulator ⌀40mm The dNExT is an experimental product. Dangerous Things classes it as a lab product: larger than the standard lineup, and using materials and techniques that have not been through the same long term proving. The bioresin is a USP Class VI certified material, but the finished product has not been tested after processing. Cast bioresin is rigid and does not flex. Placement therefore matters more than it does for an x-series or a flex product: not under a gripping surface, not over or parallel to a joint, and not in the hand, whose curvature does not suit a rigid 40 mm disc. The back of the wrist or the arm are the usual choices, and nothing should be worn over the site. The dNExT is a disc of cast bioresin, 40 mm across and 2.5 mm thick, containing two completely separate transponders. The high frequency side is a 13.56 MHz NTAG216 on a 35 mm inlay, compliant with ISO 14443A and NFC Type 2, with a 7 byte UID and 886 bytes of user memory. The low frequency side is a 15 mm 125 kHz T5577 emulator, which can be written to carry EM41xx, EM4200, HID ProxCard and Indala style IDs. The two work independently, so one device answers both a 13.56 MHz reader and a 125 kHz reader. It is the large format relative of the NExT. The antenna in a 40 mm disc is far closer in size and shape to the flat coils built into phones and access readers than the small cylindrical coil inside an x-series glass product, so it couples with ordinary readers much more readily. Each dNExT is built to order and can carry zero to eight LEDs, which light while the device sits in an NFC reader field. Colors are green, red, aqua, blue and white, and the order of the colors is yours to specify. Three or fewer gives the best radio performance. If no LEDs are specified, none are fitted. The NTAG216 side leaves the factory with its user memory open and writable, and with the lock bytes disabled so that no NFC app can permanently set a memory page read only by accident. Only the Capability Container page is locked, because that page has to stay intact for the device to be recognized as an NFC Type 2 tag. A default write password is set at the factory and should be changed after installation. The 13.56 MHz UID is fixed and cannot be changed. The dNExT holds no secure element, so it cannot be used for payments, and anything written to it can be read by any reader brought near it. Dimensions 40 mm diameter x 2.5 mm Encapsulation Bioresin / バイオレジン (USP Class VI) HF transponder NTAG216, 13.56 MHz, ISO 14443A / NFC Type 2, 35 mm inlay HF memory 7 byte UID, 886 bytes user memory LF transponder T5577, 125 kHz, 15 mm LF emulation EM41xx, EM4200, HID ProxCard, Indala and similar LEDs 0 to 8 / 0〜8個 (green, red, aqua, blue, white) Data retention 10 years / 10年, 100,000 writes per block Time to peak performance 2 to 6 months / 2〜6か月 Lead time Built to order, no wholesale / 受注生産、卸売なし Chip datasheet : NXP NTAG216 aesthetic 5 A light and nothing more: xLED, xGlow, Glow Heart and others. No chip inside, so it holds no data. xGlow Photoluminescent glow rod, 3 x 15 mm, that glows through skin after charging with light. 3×15mm The xGlow is decorative and nothing else. It has no electronic function, holds no data and cannot be read. Please set your expectations for the glow itself: it is soft rather than bright, it is best seen in a dark room, and how visible it is depends on how deep it sits and on your skin. It has to be recharged with light each time you want it to glow. The xGlow is a strontium aluminate photoluminescent rod encapsulated in resin, 3 mm by 15 mm, in the same slim cylindrical format as the x-series. There is no IC inside it, no antenna and no battery. It has no communication function of any kind. It stores light and releases it slowly, and that is the whole of what it does. Using one is a matter of charging it. Any light source will do, and a UV torch charges it fastest and brightest. Once charged, it glows softly through the skin in a dark room. The glow fades over the following hours, so you charge it again whenever you want it. Two colors are available, green and aqua. The resin is a material tested to USP Class VI and ISO 10993. It reads as nothing, to anything. There is no NFC and no RFID function, it cannot be scanned, and it holds no data. Dimensions 3 mm x 15 mm Glow material アルミン酸ストロンチウム (strontium aluminate) Colors Green / Aqua Encapsulation 樹脂 (resin, USP Class VI / ISO 10993) Sterilization 低温ガスプラズマ滅菌 (low-temperature gas plasma) Electronics なし (none) Data / comms 非対応 (not supported) xGlow XL A 4 x 28 mm glow rod. Charge it with light and it glows softly through the skin. 4×28mm Dangerous Things classes the xGlow XL as a lab product: deliberately experimental, larger than the standard lineup, and exploring materials and techniques that have not been through the same long term proving. It is not certified by any regulatory authority for implantation. It is also noticeably thicker than a glass implant at 4 mm across, so the site and the orientation should be settled with the physician beforehand rather than on the day. The xGlow XL is a photoluminescent glow rod, 4 x 28 mm, made from a strontium aluminate polymer and encapsulated in biocompatible resin. Charge it with a light source, a UV torch works best, and it glows softly through the skin, fading gradually until you charge it again. There is no limit on how often you can recharge it. It holds no data and it communicates with nothing. There is no NFC, no RFID, no electronics and no battery inside it. No phone and no reader can read it, it cannot be enrolled in any system, and it cannot store a single byte. The only thing it does is glow, and that is the whole of the product. The light is soft and low in prominence: it reads in a dark room rather than in daylight. Expect the site to settle over 2 to 4 weeks. The encapsulating resin is tested and certified to USP Class VI and ISO 10993. Size 4 × 28 mm Material ストロンチウムアルミネート / Strontium aluminate Housing 生体適合レジン / Biocompatible resin Material certification USP Class VI / ISO 10993 Glow color Aqua Data なし / None Wireless なし / None Sterilization 低温ガスプラズマ滅菌 (low-temperature gas plasma) Peak performance 2〜4週間 / 2 to 4 weeks xLED A field detector that lights in a reader's field. It holds no data and cannot be read. 3×14mm The xLED is a field detector in a bioglass cylinder of 3 mm by 14 mm, made from the same materials as the x-series transponders and built for implantation. Inside there is a tuning coil and an LED, and nothing else. There is no transponder and no memory, so the xLED holds no data of any kind, cannot be read or written, and cannot be registered to any system. What it is for is position. It lights whenever it is inside the field of a reader running at its frequency, and because its coil is wound like the coil in an x-series transponder, the place where it lights is the place where a transponder reads. That makes it a way to learn the location, rotation and orientation to present an implant to an unfamiliar reader. It draws all of its power from the reader's field. Two frequency versions are offered and each responds only to its own. The HF version lights in the field of a 13.56 MHz NFC or HF reader, which is the frequency of devices such as the NExT, xSIID, xNT and the flex series. The LF version lights in the field of a 125 kHz reader. Four colors are available: white, red, blue and green. Frequency HF 13.56 MHz / LF 125 kHz Colors 白 / 赤 / 青 / 緑 (white / red / blue / green) Dimensions 3 mm × 14 mm Housing 生体適合ガラス (bioglass, USP Class VI / ISO 10993) Memory なし (none) Power リーダーの磁界 (reader field only) Peak performance 2〜4週間 (2 to 4 weeks) Glow Heart A 25 mm bioresin heart with strontium aluminate glow powder. No electronics, no data. 25×25mm The Glow Heart is an experimental product. Dangerous Things classes it as a lab product: larger than the standard lineup, and using materials and techniques that have not been through the same long term proving. The bioresin is a USP Class VI certified material, but the finished product has not been tested after processing. Cast bioresin is rigid and does not flex, and at 25 mm across this is a large piece. Placement matters: not under a gripping surface, and not over or parallel to a joint. The Glow Heart is a heart shaped piece of cast bioresin, 25 mm by 25 mm and 2 mm thick, with strontium aluminate glow powder suspended in the resin. Strontium aluminate is a photoluminescent pigment: it absorbs light, then releases it slowly as a soft afterglow. Charge the Glow Heart with any light source and it glows through the skin. A UV torch charges it fastest and brightest. Two colors are made, aqua and green. This is an aesthetic product and nothing else. It contains no chip, no electronics and no battery. It has no NFC or RFID function of any kind, stores no data, and cannot be read, written to or scanned. It does not communicate with phones or readers, and a reader will not see it at all. What it does is glow. It takes two to six months for the site to settle fully. Dimensions 25 mm x 25 mm x 2 mm Material Bioresin + strontium aluminate / バイオレジン、アルミン酸ストロンチウム Biocompatibility USP Class VI, ISO 10993 tested resin Colors Aqua / Green Charging Any light source; UV torch is fastest / UVライトが最適 Electronics None / なし Data storage None / なし Sterilization Low-temperature gas plasma / 低温ガスプラズマ滅菌 Time to settle 2 to 6 months / 2〜6か月 Blinken Log A 5.7 x 26.5 mm bioresin implant holding four LEDs. It stores nothing and carries no ID. 5.7×26.5mm This is an experimental product by the manufacturer's own classification, and it has been neither tested nor certified by any regulatory agency for installation in the body. The bioresin is a USP Class VI certified material, but the finished product is not tested after processing, so changes in the material during manufacture cannot be ruled out. Do not install it under a gripping surface such as the palm side of the hand, and do not install it over or parallel to a joint. The Blinken Log is four LEDs in a bioresin cylinder, 5.7 mm across and 26.5 mm long. The colors and the order they sit in are chosen by the customer from red, green, blue, white and amber, and each one is built to order, so there is no delivery estimate. The LEDs are driven by a low frequency RFID field or by a wireless charging coil, which means they light while such a field is held against them and are dark otherwise. That is the whole of what this product does. It holds no data, carries no identifier, opens no door, and is read by no phone or reader. It is bought for how it looks. Dangerous Things classes it as a lab product, which is their word for experimental: larger than the standard line, and exploring materials and techniques that have not had the same long term proving. Placement matters more than it does for a small glass implant: not under a gripping surface, not over or along a joint, and always as the installing physician judges. Peak performance is reached 4 to 8 weeks after installation. Size 5.7 × 26.5 mm Material Bioresin / バイオレジン LEDs 4 Color choices Red, Green, Blue, White, Amber Powered by 125 kHz field or wireless charging coil Stored data 0 bytes Peak performance 4-8 weeks / 4〜8週間 Lead time Built to order, no estimate / 受注生産、目安なし m-series magnets 2 Magnets, and a different job entirely. No chip inside, so it holds no data. Magnetic, so they cannot go into an MRI and must be removed first. Not part of the VivoKey Japan lineup. xG3 A bioglass magnet. It holds no data and carries no ID. 3×15mm The xG3 is magnetic and is not MRI compatible. It must be removed before any MRI scan or other magnetic imaging procedure. Tell any physician, radiographer or dentist that you have it before any imaging. Keep it away from pacemakers, insulin pumps and other electronics sensitive to magnetic fields, and away from magnetic stripe cards and magnetic storage media. Like every implant in this catalog it has not been certified by any government regulatory agency for implantation, and the decision to have one is taken at the customer's own risk. Please also note that VivoKey Japan does not at present have confirmed physicians for this type of product, so installation cannot be arranged today. We are working on it, and we will not accept an installation booking for the xG3 until we can carry it out properly. The xG3 is a magnet, not a transponder. It stores no data, it carries no ID, and no reader will ever see it. Everything else in this catalog answers a reader. This one does not. What it does is move. Inside an alternating magnetic field the magnet moves slightly, and the person feels that movement through ordinary touch, the way you feel a phone vibrate. Near transformers, motors or induction hobs this movement can be noticed. It does not change the structure or function of the body. It will also lift and hold small ferrous objects, and it will show the polarity of another magnet. Two magnetizations are offered. The v1 is axially magnetized, with a pole at each end, so it travels lengthwise and moves more readily in a field. The v2 is diametrically magnetized, so it turns in place: stronger for lifting, less movement in a field. A magnet implant is a magnet and nothing more. If you hold a strong neodymium magnet between your fingers next to a live wire and feel nothing, you will feel nothing from an implanted one either. It cannot be read or written, and it cannot be used for access control or identification of any kind. It also takes longer to settle than the glass transponders, typically six to ten weeks. Type Neodymium magnet, N52 or above Dimensions 3 mm x 15 mm Housing 生体適合ガラス / Bioglass Magnetisation v1 Axial / v2 Diametric Sterilization Low-temperature gas plasma / 低温ガスプラズマ滅菌 Peak performance 6-10 weeks m-Series Biomagnets Neodymium magnets sealed in bioresin, in six sizes. They hold no data of any kind. MRI. A magnetic implant must be removed before any MRI or magnetic imaging procedure. This is not the same status as the glass x-series, which is MR Conditional. The m-Series and every magnetic product are incompatible with MRI at any field strength, and removal is itself a procedure. Please weigh this before ordering, and tell any imaging facility that you have one. Keep magnetic implants away from pacemakers, insulin pumps and other sensitive electronics. The larger versions, the m1148a and the m1448a in particular, are genuinely powerful magnets, and careless handling carries real risk. Availability in Japan. VivoKey Japan does not currently have confirmed physicians for this product type. We are working on it, and until that is settled we cannot arrange the installation of a biomagnet in Japan. The m-Series are neodymium magnets sealed in bioresin. They are a different kind of product from everything else in the catalog, because they are not transponders. They hold no data, carry no identifier, communicate with nothing, and no reader or smartphone can read them. What they do is move slightly in a magnetic field, and the person feels that movement through ordinary touch, the way you feel a phone vibrate. Six versions are made. The m0422a is 4 by 2.2 mm around a 3 by 1.5 mm N55 core, the smallest disc. The m0426a is 4 by 2.6 mm around a 3 by 2 mm N52. The m08s is an 8 mm sphere around a 6 mm N52. The m1148a (11 by 4.8 mm, 10 by 3 mm N52) and the m1448a (14 by 4.8 mm, 13 by 3 mm N55) are the lifting sizes, and the m1448a in particular is a very strong magnet. The honest description is that a magnet is a magnet: it has to physically move for anything to be noticed. If you hold an N52 magnet between your fingertips near a wire and notice nothing, installing it will not change that. It does not change the structure or function of the body. The manufacturer rates installation as advanced and puts peak performance at 2 to 6 months, as the tissue around the magnet settles. m0422a 4 × 2.2 mm, axial, N55 core 3 × 1.5 mm m0426a 4 × 2.6 mm, axial, N52 core 3 × 2 mm m04280bar 4 × 28 mm bar, diametric, N52 core 3 × 4 × 28 mm m08s 8 mm sphere, N52 core 6 mm m1148a 11 × 4.8 mm, axial, N52 core 10 × 3 mm m1448a 14 × 4.8 mm, axial, N55 core 13 × 3 mm Encapsulation Bioresin / バイオレジン Stored data 0 bytes Peak performance 2-6 months / 2〜6か月 MRI Must be removed before MRI / MRI前に摘出が必要 ACCESSORIES AND TOOLS Dangerous Things also makes the things around the implants: readers, field detectors, test cards, development boards, and chips built into rings and fobs for anyone who would rather not have a procedure. VivoKey Japan can bring any of them in by special order, on the same terms as the implants. Nothing in this section is implanted. What we support, and what we do not We can bring any of these in. We are not their support desk. They are other companies' tools, each with its own documentation, firmware and community, and a question about a Proxmark, a development board or a reader is answered better by the people who build them than by us. What we do answer is whether a tool works with the implant you have, and how to order one. readers and test gear 20 Readers, field detectors, test cards and development boards. Nothing here is implanted: these are the tools for finding a reader's read spot, checking what frequency it runs at, and working with the chips you already have. RFID Diagnostic Card Wallet card that shows whether a reader emits 125 kHz, 13.56 MHz, or both. This is a diagnostic tool, not an access credential. It stores no data and cannot be programmed. The card is sensitive to static discharge and is supplied in an antistatic bag. The RFID Diagnostic Card is a passive test card in ordinary card format. Hold it against a contactless reader and its indicators tell you which field that reader is producing: one window responds to 125 kHz, the other to 13.56 MHz, and a reader driving both will light both. The brightness of an indicator gives a rough sense of field strength, and the way it pulses shows the duty cycle, meaning how often the reader switches its field on rather than leaving it running. It is a diagnostic tool for people who already work with RFID. It stores no data, carries no ID and cannot be programmed. What it does is answer the first question about an unfamiliar reader, which frequency is this, before anything else is tried. It fits in a wallet alongside ordinary cards. Frequencies 125 kHz / 13.56 MHz Format カードサイズ (card format) Indicates 磁界の有無、強さの目安、デューティ比 Power パッシブ (passive, no battery) Dual Frequency Field Detector Keychain Keychain field detector for 125 kHz and 13.56 MHz, for finding a reader's read spot. The xFD reports the reader's field, not your implant. A lit indicator means that reader is emitting on that frequency and shows you where its antenna lies. It does not tell you whether the reader will accept the chip you carry: a reader can be emitting perfectly on 13.56 MHz and still be configured to accept only one card type. It holds no data and performs no authentication. The xFD is a field detector on a keyring. It carries a separate indicator for each frequency, marked L for 125 kHz and H for 13.56 MHz, so one wand tells you which frequency a reader runs at and, more usefully, exactly where its antenna windings lie. Its real purpose is orientation. The antenna in an x-series device is a coil wound around a cylinder, and a coil of that shape couples with a reader only within a narrow band of positions and angles. Sweeping the detector across the face of a reader shows the spot, the rotation and the angle at which the device will read, which saves a great deal of guessing at a reader you have never used before. It stores no data, carries no ID and draws all of its power from the reader's own field. Frequencies 125 kHz (L) / 13.56 MHz (H) Shows 位置、回転、角度 (position, rotation, orientation) Power パッシブ (passive, no battery) Form キーホルダー型 (keychain) Proxmark3 Easy (Iceman Firmware) RFID research tool for 125 kHz and 13.56 MHz, with Iceman firmware preloaded. This is a developer and diagnostic tool, not a consumer product and not an access credential. It transmits as well as receives. Use it only with credentials and systems you own or have written permission to work on. Reading, copying or replaying someone else's credential without permission may be unlawful. The Proxmark3 Easy is a research and development tool for RFID at 125 kHz and 13.56 MHz. It reads, writes, records and replays what passes between a reader and a transponder, which is how people debug an access control system, identify an unknown credential, or work out why a particular reader will not see a particular device. It needs a host computer and is driven from a command line. This unit ships with the Iceman bootloader and firmware already loaded, which is the community fork most people end up running anyway, and it carries 512 kB of memory. The manufacturer states the preloaded image is the 2020-09-24 release; firmware is updated from the project's own repository afterwards. A set of assorted test cards is included. The antennas fitted to the Easy are tuned for cards and fobs rather than for the small cylindrical antennas used in implants, so coupling with an implant works but works poorly. The Booster Board, sold separately, replaces the HF midboard for exactly that reason. Frequencies 125 kHz / 13.56 MHz Memory 512 kB Firmware Iceman (2020-09-24 release, preloaded) Host USB接続のホストコンピュータとコマンドライン操作が必要 Included LFアンテナ、HFアンテナ、各種テストカード 62mm Repeater Disc Rigid 62 mm disc that re-emits a reader's 13.56 MHz field to improve coupling. The disc improves coupling; it does not change compatibility. If a reader does not accept your chip type, a repeater will not make it do so. How much it helps depends on the reader's own antenna design and on where the disc sits, so expect to find the position by trial. It is passive and carries no data, and we do not sell or describe it as a medical device. The 62 mm Repeater Disc is a rigid FR4 disc made by Midwest Gadgets that improves how well a 13.56 MHz reader couples with a small transponder antenna. It is entirely passive: no power, no data, nothing to configure. The reader's field induces a current in the disc, and the disc re-emits a field of its own, concentrated over its own area. Where it sits is the part people get wrong. The disc should cover part of the reader's antenna rather than sit centered on it, which is what forces the lines of flux through the disc. A field detector makes finding that position quick. Once it is in place, present the transponder to the disc rather than to the reader's original antenna area. Diameter 62 mm Frequency 13.56 MHz Material FR4 (rigid PCB) Maker Midwest Gadgets Power パッシブ (passive, no battery) Lodestone PICO USB-C audio dongle that turns sound into a varying magnetic field. The PICO does nothing on its own. Its output moves only a magnet implant that is already in place. It is an experimental device with no medical purpose and no medical use. The Lodestone PICO is a USB-C dongle that presents itself to a computer or phone as an ordinary USB audio output. Instead of driving a speaker it drives a coil, turning whatever is playing into a changing magnetic field, which makes an implanted magnet such as the Titan or the xG3 move slightly, and that movement is felt through ordinary touch. Music, film audio and game sound all work, because the device sits in the normal audio path and needs nothing special from the source. It was developed by the researcher Axel Fougues as a way of exploring how implanted magnets respond to a changing field. It is an experimental instrument rather than audio equipment. The color of the unit shipped is random. Interface USB-C, USB Audio class Requires 磁石インプラント (Titan / xG3 など) Developed by Axel Fougues Color ランダム (not selectable) KBR1 Keyboard Reader USB reader that types a tag ID like a keyboard. HF or LF version, no drivers. The KBR1 types out the ID it reads as plain text. It performs no authentication and no encryption, and it does not verify who the ID belongs to. Any security has to be provided by the software receiving it. The KBR1 is a keyboard wedge reader. Plugged into a USB port it presents itself as an ordinary keyboard, so when it reads a transponder it types the ID out wherever the cursor happens to be: a text field, a spreadsheet, a terminal window. No driver is needed and nothing has to be installed. Two versions are made and each reads one frequency only. The HF version reads ISO14443A at 13.56 MHz. The LF version reads EM41xx at 125 kHz. Choose the one that matches what you intend to read, because they are not interchangeable. Because it simply types an ID as text, it is the shortest path between a transponder and software that has no idea RFID exists: a login script, a local database, an attendance sheet. Versions HF (ISO14443A, 13.56 MHz) / LF (EM41xx, 125 kHz) Interface USB HIDキーボードとして動作 Drivers 不要 (none required) Output IDをテキストとして入力 J3R452 JCOP 4.5 Smart Card Dual interface Java Card development card, JCOP 4.5, with the flexSecure applet set. The card arrives with the factory default master key, which is public knowledge. It is a development card and is not secure as delivered. Change the keys before anything that matters is stored on it. The MIFARE Plus variant is not personalised before shipping. The J3R452 is a dual interface Java Card, contact and contactless, sold as a development and test card. It runs JCOP 4.5 with Java Card 3.0.5 and leaves roughly 30,400 bytes of EEPROM free for applets once the preloaded set is in place. The platform holds Common Criteria EAL 6+ along with other national certification schemes, and the card arrives with the factory default master key so that a developer can load applets immediately. It is configured with a 4 byte NUID. It carries the same applets as the flexSecure: a free memory reporter, a FIDO2 style passkey applet with U2F fallback, an OTP authenticator, and an NFC sharing applet with a 32 kB NDEF container. That makes it the thing to develop and prove an applet on before anything is loaded onto an implant. Three variants are offered. The first has no emulation. The second adds MIFARE Plus EV3C emulation for AES based access control, and is not personalised before shipping unless asked, since personalising it would mean sending the key with it. The third is DESFire EV3C, which includes the DESFire application and file system and can additionally present an application as MIFARE Classic 1k, so one card covers both modern DESFire readers and legacy ones. The DESFire variant ships configured. Platform JCOP 4.5 / Java Card 3.0.5 Free EEPROM 約30,400 bytes Certification Common Criteria EAL 6+ Interface 接触 + 非接触 (dual interface) UID 4 byte NUID Variants None / MIFARE Plus EV3C / DESFire EV3C Preloaded applets Free Memory, FIDO2 (U2F fallback), OTP Authenticator, NFC Sharing (32 kB NDEF) Single Basic Card One test card in the transponder type of your choice, for checking a reader first. The Magic MIFARE Classic variants allow the UID and the manufacturer block to be rewritten. Use them only on systems you own or are authorized to test. A test card is a test tool, not a credential for daily use. A single test card in standard card format, carrying the transponder you choose. The options are a T5577 at 125 kHz, a Magic MIFARE Classic 1k in gen1a, gen2 or gen3, an NTAG216, a DESFire EV3 or an ICODE SLIX, which are the same transponder families used in the implants. It answers two questions cheaply. The first is compatibility: does this lock, this reader or this project actually work with this type of transponder, asked before anything is decided. The second is diagnosis: if a reader reads the card but not an implant, the problem is coupling and range rather than compatibility, and those have different fixes. It is also where practice belongs. Cloning, programming and enrollment are all easier to learn on a card you can put down and pick up again. Format カードサイズ (card format) T5577 125 kHz LFエミュレーター。xEM, NExT (LF側), flexEM, dT5, xMagic (LF側) Magic MIFARE Classic 1k gen1a 13.56 MHz, UID書き換え可 (backdoor)。xM1, xMagic (HF側) Magic MIFARE Classic 1k gen2 13.56 MHz, UID直接書き込み Magic MIFARE Classic 1k gen3 13.56 MHz, UIDは一度だけ設定可 NTAG216 13.56 MHz NFC Type 2。xNT, NExT (HF側), dNExT, flexNT DESFire EV3 13.56 MHz NFC Type 4。flexDFシリーズ ICODE SLIX 13.56 MHz ISO15693。xSLX Proxmark3 Easy Booster Board Replacement HF midboard for the Proxmark3 Easy, for better coupling with implants. This board does not fit all Proxmark3 Easy variants. Confirm which board you have before ordering. The Booster Board replaces the HF midboard of a Proxmark3 Easy with a better NFC antenna. The antennas the Easy ships with are designed around cards and fobs and couple poorly with the small cylindrical antenna of an implant. This board is the fix for that, and it makes a clear difference at 13.56 MHz. It is made by Midwest Gadgets, and the board itself is printed with a diagram showing how to align x-series and flex devices against it. It does not fit every version of the Proxmark3 Easy. The maker publishes an STL file so the fit can be printed and checked before ordering. Frequency 13.56 MHz Fits Proxmark3 Easy (一部のバージョンは非対応) Replaces 標準のHFミッドボード Maker Midwest Gadgets UG4 Test Card Ultimate Magic gen4 emulator card, 13.56 MHz, with a fully writable sector 0. Ultimate Magic gen4 This is a configurable emulator with a writable manufacturer block. Use it only on systems you own or are authorized to test. The UG4 Test Card carries an Ultimate Magic gen4 emulator at 13.56 MHz, version 06 A0. It is configurable rather than fixed: the UID can be set to 4, 7 or 10 bytes, the whole of sector 0 including the manufacturer block is writable, and the card can be made to present itself as a variety of ISO14443 transponders. It is the card equivalent of the flexUG4 and the dUG4T, which makes it the right thing to test a reader with, and the right thing to practice configuration on, before configuring an implant. Frequency 13.56 MHz IC Ultimate Magic gen4 (version 06 A0) UID 4 / 7 / 10 byte, 書き換え可 Sector 0 全体が書き換え可 (writable) Matches flexUG4, dUG4T xEM Access Controller 12 V DC access control board with an onboard relay, for 125 kHz EM style IDs. This is a project and hobby controller, not a certified security product. A 125 kHz EM style ID is a fixed number with no cryptographic protection: anyone with a compatible reader can read it and copy it onto another credential. Do not rely on it where that matters. Wiring and the safety of anything it switches at 12 V DC are the customer's own responsibility. The xEM Access Controller is a small 12 V DC access control board for projects. The relay is on the board, so nothing external is needed to switch a lock, a gate or a vehicle circuit, and there is a buzzer and a row of screw terminals for the wiring. The kit includes the controller board, a wiring harness, an antenna coil and two 125 kHz keyfobs. It reads 125 kHz EM41xx style IDs, so it works with the xEM, and with the NExT and NExT v2 while their low frequency side is in EM mode. Up to 150 IDs can be stored. Enrollment happens on the board itself: an onboard switch sets a master tag, and no computer is involved at any point. It runs on 12 V DC, which is why it turns up in vehicle projects as often as in doors. Supply 12 V DC Reads 125 kHz EM41xx系ID Works with xEM, NExT / NExT v2 (低周波側をEMモードに設定した場合) Capacity 最大150件 Relay 基板上に内蔵 (onboard) Included 制御基板、配線ハーネス、アンテナコイル、キーフォブ2個 Field Visualizer Ring Passive tool that shows the shape of a 13.56 MHz reader's field over a wide area. This is a coarse tool for seeing where a field is, not a measuring instrument. It shows 13.56 MHz only, it does not identify the frequency or the card type a reader expects, and it gives no numbers. For pinpointing the exact spot on a reader, the xFD keychain detector is the finer instrument. The Field Visualizer Ring is a passive tool from Midwest Gadgets for seeing the shape of an NFC reader's field quickly, across a wider area than a single point detector covers. Nothing is powered and nothing is configured: it responds to the field and shows you where it is. It sits between the other two tools in the kit. The xFD keychain detector is precise and dual frequency and will show you exactly where a reader's windings run, but examining a whole reader with it is slow. The RFID Diagnostic Card answers the frequency question in one gesture and shows little about where the field actually is. The Visualizer Ring is the one to reach for if you work across many different readers, or find yourself testing unfamiliar readers out in the world, and want the answer quickly. Frequency 13.56 MHz Shows 磁界の広がりと強い位置 Power パッシブ (passive, no battery) Maker Midwest Gadgets J3R180 JCOP 4 Smart Card Dual interface JCOP 4 Java Card, a test card and backup for the flexSecure. The card arrives with the factory default master key, which is public knowledge. Change the keys before anything that matters is stored on it. The J3R180 is a dual interface Java Card sold as a test card and a backup for the flexSecure. It runs the JCOP 4 operating system for Java Card 3.0.5 applets, with 167,736 bytes of EEPROM available, and the platform carries Common Criteria EAL 6+ along with other national certification schemes. It arrives with the factory default master key, so applets can be loaded immediately. Because it is the same secure element family used in the flexSecure and the VivoKey Apex, an applet developed and proved on this card behaves the same way on the implant. Keeping one also means a working copy of your applet set exists somewhere other than in your hand. Platform JCOP 4 / Java Card 3.0.5 EEPROM 167,736 bytes Certification Common Criteria EAL 6+ Interface 接触 + 非接触 (dual interface) Matches flexSecure, VivoKey Apex Proxmark3 Easy with Booster Board Proxmark3 Easy supplied with the Booster Board already fitted in place of the midboard. This is a developer and diagnostic tool, not a consumer product and not an access credential. It transmits as well as receives. Use it only with credentials and systems you own or have written permission to work on. Reading, copying or replaying someone else's credential without permission may be unlawful. This is the Proxmark3 Easy and the Booster Board sold together, with the board already fitted in place of the standard HF midboard. The tool itself is the same one described under Proxmark3 Easy: a 125 kHz and 13.56 MHz research and development device with the Iceman bootloader and firmware preloaded, 512 kB of memory, driven from a host computer over USB. The reason to take the pair is coupling. The antennas the Easy ships with are tuned for cards and fobs and read implants poorly, and the Booster Board is the part that corrects that at 13.56 MHz. Buying them together also avoids the fitment question, since the board that arrives is one that fits the unit it arrives on. Contents Proxmark3 Easy (Iceman firmware) + Booster Board (取付済み) Frequencies 125 kHz / 13.56 MHz Memory 512 kB Host USB接続のホストコンピュータとコマンドライン操作が必要 NFC MR Card The printed MR card for the x-series, with a read only NFC record added. NXP NTAG213 This card is a way of showing the information. It is not a substitute for telling the facility yourself. Always tell medical staff directly what you have before any examination. The version currently offered covers the x-series only. An MR card is the card you hand to medical staff before an imaging examination, so that the facility knows what you have. This is an MR card with a read only NFC tag added, available by order through VivoKey Japan. It is an NTAG213 carrying a preset NDEF record that points to the manufacturer's own MR information page, alongside the same printed graphics and text as the manufacturer's own card. The record is deliberately read only, since the card exists to be handed to someone else and its contents should not be alterable by whoever is holding it. The version currently offered covers the Dangerous Things x-series. IC NXP NTAG213 Frequency 13.56 MHz NDEF record 読み取り専用 (read only) Covers Dangerous Things x-series Printing メーカーの印刷版と同じ図版・文面 Card Pack Six cards, one for each transponder family, for testing a reader without an implant. The Magic MIFARE Classic cards allow the UID and the manufacturer block to be rewritten. Use them only on systems you own or are authorized to test. The Card Pack is a set of six cards, one for each of the transponder families used in the implants, so that a reader, a lock or a project can be tested without buying or using an implant at all. The pack holds a T5577 low frequency emulator, a Magic MIFARE Classic 1k gen1a, a Magic MIFARE Classic 1k gen2, an NTAG216 with 888 bytes, a DESFire EV3 with 8 kB and an ICODE SLIX. Testing on cards first settles the compatibility question before anything is decided, and separates it cleanly from the range question afterwards: a reader that reads the card but not an implant has a coupling problem, not a compatibility one. Contents 6枚組 (6 cards) LF T5577 (125 kHz emulator) HF Magic MIFARE Classic 1k gen1a / gen2, NTAG216 (888 bytes), DESFire EV3 (8 kB), ICODE SLIX Format カードサイズ (card format) Repeater Sticker Pack Two thin adhesive discs that concentrate a 13.56 MHz reader's field. The stickers are adhesive and are meant to stay where they are put. Applying one to a phone, a lock or a reader is a permanent modification to that device. The Repeater Sticker Pack is two Field Concentrator Stickers from Midwest Gadgets. Each is a thin adhesive disc that improves how well a 13.56 MHz reader couples with a small transponder antenna, and each is entirely passive: no power, no data, nothing to configure. The reader's field induces a current in the sticker, and the sticker re-emits a concentrated field of its own over the area where it sits. Put it over part of the reader's antenna rather than centered on it, which is what forces the flux through the sticker. Clean the surface with the alcohol pad supplied before applying, because the bond is meant to last. Once applied they are nearly invisible against most surfaces. Quantity 2枚 (2 stickers) Frequency 13.56 MHz Power パッシブ (passive, no battery) Included アルコールパッド Maker Midwest Gadgets 27mm Field Detector Small passive disc that lights in a reader's field, for placing repeater stickers. It lights in a field and does nothing else. It does not identify which frequency it responded to, so on a dual frequency reader it cannot tell you which of the two is present. The four colors are cosmetic and do not change how it behaves. A 27 mm passive detector disc from Midwest Gadgets. It lights in a reader's field and does nothing else, which is precisely what is wanted when the question is where to put a repeater sticker or a rigid repeater disc. Move it across the face of the reader, and the place where it responds best is the place the repeater belongs. Four colors are offered: red, green, blue and white. The color is cosmetic and does not change how it behaves. Diameter 27 mm Colors レッド / グリーン / ブルー / ホワイト Power パッシブ (passive, no battery) Use リピーターディスク・ステッカーの位置決め Maker Midwest Gadgets Proxmark LF Antenna Replacement 125 kHz antenna for the Proxmark3 Easy, with screws and standoffs. This is a bare coil and a set of fasteners. It does nothing on its own: it is the antenna a Proxmark3 Easy drives at 125 kHz, and it is useful only to someone who already has that device and needs to replace or remount the part. Fitting it is the buyer's own work. A replacement 125 kHz low frequency antenna for the Proxmark3 Easy, supplied with the screws and standoffs needed to mount it. It is offered because this is the part most often lost or damaged on a well used unit. It carries no electronics of its own. It is simply the coil the Proxmark3 drives when it works at 125 kHz. Frequency 125 kHz For Proxmark3 Easy Included ネジ、スペーサー (screws and standoffs) VivoKey Dev Kit Two demo cards for developing against the VivoKey platform API. These are developer demo cards. They are not credentials and are not linked to a VivoKey account. The VivoKey Dev Kit is two demo cards for developers building against the VivoKey platform. The manufacturer describes them as using the ISO15693 protocol, which iOS 14 and later and Android 8 and later both support, so a phone app can be built and tested against the cards without an implant being involved at any stage. API documentation, mobile development libraries and API key management are handled through VivoKey's own developer portal. Contents デモカード2枚 (2 demo cards) Protocol ISO15693 (製造元の記載による) Mobile support iOS 14以降 / Android 8以降 For VivoKeyプラットフォームAPIの開発 worn, not implanted 5 Rings, fobs and keys carrying the same chips as the implants. For anyone who wants what an implant does without the procedure, or who wants to try the idea first. Photo pending Aftermarket motogadget mo.lock key NTAG213 key configured for the NFC version of the motogadget mo.lock. NXP NTAG213 Do not write to this transponder. Blocks 4 to 7, the password and everything after it cannot be changed without breaking the mo.lock integration. This is an aftermarket product: it is not made by motogadget and is not endorsed by them. This is an aftermarket key for motogadget's mo.lock, the NFC version rather than the older low frequency one. It is an NTAG213, the same transponder motogadget itself uses, configured so that the lock accepts it. The mo.lock is worth knowing about on its own terms: simple to fit, efficient with power, and reasonably secure for its price and its technology. While it is authenticated it outputs 12 V DC, which is what makes it useful as a keyless ignition on a motorcycle. Dangerous Things offers the same configuration as a factory option on the xNT, NExT, NExT v2 and xSIID. The memory contents of this key must not be altered. IC NXP NTAG213 Frequency 13.56 MHz For motogadget mo.lock (NFC版のみ) Memory 書き換え不可 (must not be altered) FauxFOB Four programmable transponders in a keyfob, each connected only while its button is held. Everything in the FauxFOB is freely rewritable, including the UID on the Magic MIFARE side. Program it only with credentials you own or are authorized to duplicate. The transponders it holds carry no cryptographic protection of their own. The FauxFOB looks like an ordinary car remote and holds four reprogrammable transponders: two T5577 at 125 kHz on buttons A and B, and two Magic MIFARE Classic 1k at 13.56 MHz on buttons C and D. Four credentials live in one object on a keyring. Only the transponder whose button is held is connected to its antenna, so nothing responds unless you choose it. That is what makes keeping several at once practical: a reader sees one at a time and the others are invisible to it. It also means the fob is inert while it sits in a pocket. The Magic MIFARE side is available in gen1a or gen2, chosen at order. Transponders T5577 x2 (125 kHz) + Magic MIFARE Classic 1k x2 (13.56 MHz) Buttons A, B = T5577 / C, D = Magic MIFARE Magic version gen1a または gen2 (選択) Connection ボタンを押している間のみ Blue Bambino Six programmable transponders in a keychain tag, one connected per button press. Everything in the Blue Bambino is freely rewritable, including the UID on the Magic MIFARE side. Program it only with credentials you own or are authorized to duplicate. The transponders it holds carry no cryptographic protection of their own. The Blue Bambino is a small keychain tag holding six reprogrammable transponders: three T5577 at 125 kHz on buttons A, B and C, and three Magic MIFARE Classic 1k at 13.56 MHz on buttons 1, 2 and 3. As with the FauxFOB, a transponder is connected to its antenna only while its button is held, so a reader sees one at a time and the tag is inert otherwise. Six credentials in one unobtrusive object is the whole idea. The Magic MIFARE side is available in gen1a or gen2, chosen at order. Transponders T5577 x3 (125 kHz) + Magic MIFARE Classic 1k x3 (13.56 MHz) Buttons A, B, C = T5577 / 1, 2, 3 = Magic MIFARE Magic version gen1a または gen2 (選択) Connection ボタンを押している間のみ Magic Ring (Magic MIFARE 1k + T5577) Black ceramic ring holding a rewritable 13.56 MHz and a rewritable 125 kHz transponder. Ring size 6 to 13 A ceramic ring cannot be resized, and it can crack if it is dropped onto a hard surface. Confirm your size against the manufacturer's sizing guide before ordering, because a ring in the wrong size cannot be altered afterwards. The transponders inside carry no cryptographic protection. The Magic Ring is a black ceramic ring with a simple chamfered edge, holding two fully programmable transponders. One is a Magic MIFARE Classic 1k gen2 at 13.56 MHz, whose 4 byte ID can be rewritten and used with legacy ISO14443A systems. The other is a T5577 at 125 kHz, which a Proxmark3 can program to emulate a wide range of common work badges, keyfobs and access cards. Two small marker dots on the band show where each antenna sits, which is the part of the ring to present to a reader. It is a wearable rather than an implant, so it comes off, and it can be left at home or set aside for a day. Sizes 6 to 13 are offered. Material セラミック、ブラック (ceramic) HF transponder Magic MIFARE Classic 1k gen2 (13.56 MHz, 4 byte ID書き換え可) LF transponder T5577 (125 kHz) Ring sizes 6 - 13 Type 身に着ける製品 (wearable, not an implant) Magic Ring v2 (Magic MIFARE 1k + T5577) The Magic Ring with a gen1a Magic MIFARE transponder, in sizes 7 to 14. Ring size 7 to 14 A ceramic ring cannot be resized, and it can crack if it is dropped onto a hard surface. Confirm your size against the manufacturer's sizing guide before ordering, because a ring in the wrong size cannot be altered afterwards. The transponders inside carry no cryptographic protection. The Magic Ring v2 is the same black ceramic ring with a chamfered edge, holding two fully programmable transponders. The difference from the first version is the high frequency side: this one carries a Magic MIFARE Classic 1k gen1a at 13.56 MHz, whose 4 byte ID can be rewritten for use with legacy ISO14443A systems. The low frequency side is the same T5577 at 125 kHz, which a Proxmark3 can program to emulate common work badges, keyfobs and access cards. It ships in a matte black presentation box. Sizes 7 to 14 are offered. Material セラミック、ブラック (ceramic) HF transponder Magic MIFARE Classic 1k gen1a (13.56 MHz, 4 byte ID書き換え可) LF transponder T5577 (125 kHz) Ring sizes 7 - 14 Packaging 化粧箱入り (presentation box) --- ## https://vivokey.jp/dt-lite.html SPECIAL ORDER Specialist chips, by request Dangerous Things sells implants well beyond what this site stocks. As the only authorized handler in Japan, VivoKey Japan can bring in any of them by special order. This page explains what that means; the full catalog lists everything that can be asked for. Send the product name on LINE IS THIS FOR YOU When special order makes sense You already understand your access ecosystem You need a specific chip family or a less common platform You are comfortable with a narrower support path When it does not You are still deciding between simple sharing and secure identity use You want the simplest possible first implant You have not confirmed the target reader or system yet THE FAMILIES, AT A GLANCE See the full catalog -> Scroll to compare -> Family What it is x-series glass Cylindrical biocompatible glass, 2.1 to 3.1 mm across and 12 to 15 mm long. Spark 2, xSIID and NExT v2 are in this family. flex Thin, flat implants such as Apex Narrow and flexNT. bioresin d-series Hard bioresin pieces such as dT5 and dNExT. aesthetic A light and nothing more: xLED, xGlow, Glow Heart and others. No chip inside, so it holds no data. m-series magnets Magnets, and a different job entirely. No chip inside, so it holds no data. Magnetic, so they cannot go into an MRI and must be removed first. Not part of the VivoKey Japan lineup. IMPORTANT LIMITS What these products are not They do not block frequencies, thoughts, mind reading, or surveillance. They are not for medical, mental-health, or psychiatric protection. A chip is not more secure just because its family sounds more technical or uncommon. HOW TO ORDER Message us on our official LINE with the product name, and tell us what you want it for so we can check the product suits it. VivoKey Japan confirms availability, lead time and price with Dangerous Things and replies to you. After that, a special order follows the same path as everything else on this site: bank transfer, then the installation voucher , then the partner physician. See how it works in Japan for the full path. Apart from Apex, prices for special-order products are confirmed per order and are not listed on this site. Send the product name on LINE --- ## https://vivokey.jp/how-it-works.html GET STARTED Order, voucher, physician. The path in Japan Choose the implant, pay by bank transfer, receive your installation voucher on LINE, book with a partner physician yourself, and go with your ID. Five steps. The voucher is what connects your order to the physician. PAYMENT Bank transfer only PER ORDER One implant AGE Under 18: guardian's consent required Ask on official LINE THE FIVE STEPS 01 Choose the implant Read the product pages, compare, and decide what you actually want. Anything unclear, ask on the official LINE account. Nothing unclear, you can order straight away. 02 Order on LINE, pay by bank transfer The listed price is the implant itself, including tax. Payment is by bank transfer only, no card, no e-money. Once payment is confirmed, the implant ships straight to your partner physician, never to you. Order on official LINE 03 Your voucher arrives on LINE A link arrives on the official LINE account, and it issues your installation voucher, a QR code. The voucher page shows where to go and how to contact your partner physician. It also walks through what happens on the day. 04 Book with your physician yourself Contact your partner physician using the details on the voucher and pick a date that suits you. Your implant is dispatched to your partner physician, not to you. In practice it has been arriving there about two to three days after an order, so please allow a few days when choosing your date. The journey after we hand the parcel over is Japan Post's, so this is what we have seen rather than a delivery commitment. VivoKey Japan cannot see the booking, so changes and cancellations go to your partner physician directly. 05 Go with your voucher and ID Show the QR code and a government ID. Your partner physician confirms your order, walks you through the procedure, and installs the implant. The aftercare is explained, and the installation fee is settled there. ORDER RULES BEFORE YOU ORDER -> Orders start on official LINE Tell us which implant you want. In that conversation we ask about your area and situation and match you with a partner physician. The implant ships to your physician Never to you. Your physician opens it on the day and uses it for your installation. The installation fee goes to your physician The installation fee is set by your partner physician and paid to them directly on the day. Some partner physicians take it before the procedure. You book with your physician yourself When your voucher arrives, use the contact on it to book. VivoKey Japan cannot see the booking, so any later change or cancellation goes to your partner physician directly. THE VOUCHER Where to go, and the contact This is the partner physician matched to you during the pre-order conversation, with everything you need to book. The day-of flow and precautions It walks through what happens on the day, in order, and what to watch for before and after. A link to the recommended app A link to the app that matches the implant you ordered, so you are ready to use it on the day. The QR code is for the day itself You show it on the day. Scanning it opens a login page meant for your partner physician, which confirms your booking and implant type; you do not need to register anything. Sent by official LINE The installation voucher link is sent by official LINE within 24 hours of payment confirmation. If it has not reached you, message us there. Keep the page URL and the QR code safe. Contact details only through the voucher Partner physicians install only for customers holding a valid voucher, so where to go and how to reach them are shared after the voucher is issued. Please do not contact a partner physician before that. What it looks like Nobody has seen one of these before they order, so here is the real thing. The examples below are a sample order, not anyone's. Your order, from purchase to booking The voucher shows where your implant actually is. It fills in as the order moves, and your partner physician's details appear on it from the start. This example is at the point where the chip is on its way to the partner physician. The code you show on the day On the day, you show this screen. The physician scans it and that is the whole check-in. It colors itself to the implant you ordered, and on an iPhone in Safari it can be saved to Apple Wallet. AFTER YOU PAY Once your payment is confirmed, most of this happens on its own. Here is what arrives, where to look, and what is left for you to do. The link arrives on LINE The installation voucher link is sent by official LINE within 24 hours of payment confirmation. When your partner physician confirms, LINE messages you again on its own; you do not have to keep checking. If nothing has arrived, message us on the same account. Your own voucher page The link opens the page shown above, issued for your order alone. It fills in as the order moves, so you can see where your implant actually is. This is where your partner physician's contact is when it is time to book. Keep the page URL and the QR code safe. Add it to Apple Wallet The voucher page offers an Add to Apple Wallet badge, and the pass it makes is colored to the implant you ordered. The badge appears only on an Apple device in Safari. Opened inside the LINE browser it is not shown, so open the page in Safari if you want the pass. The pass in your Wallet Saved, the pass sits in Wallet in your implant's color, so the voucher is there without going back through LINE. On Android or another browser, open the voucher from the LINE message; the page itself is the same. How the implant reaches your physician The implant ships to your partner physician, never to you. Your physician opens it on the day and uses it for your installation. VivoKey Japan usually dispatches within 24 hours of confirming the customer's payment (the parcel goes into a Japan Post box). Pickup and delivery after that follow Japan Post's schedule. Booking is yours to make, with the contact on your voucher. Bring the voucher and your ID on the day, and the healing section shows what the weeks after look like. Product, voucher and shipping questions come to VivoKey Japan on the official LINE account; your body, the procedure and the aftercare belong to the partner physician on your voucher ( who does what ). Ask on official LINE ON THE DAY PARTNER PHYSICIANS -> Bring the installation voucher issued for your order Bring government-issued identification Follow any pre-visit instructions from your physician Plan for light swelling, tenderness and healing time after installation HEALING The four photos show an actual healing course. The notes are a guide drawn from our experience and customer feedback. Healing varies from person to person, so yours may look different. DAY 0 Right after installation The entry point is roughly 2.5 mm. A little bleeding can occur and usually stops within 5 to 30 minutes. Light pain, bruising and swelling can appear over the following days. While the area is swollen the implant can be harder to read; it reads normally again once the swelling settles. +1D A scab forms A scab forms and the wound begins to close. Over a few days the swelling fades and any pain or numbness lessens. The skin underneath is still sensitive, so avoid touching or pressing on the site. +3-5W The scab comes off The scab comes off and only a small mark, around 1 mm, remains. The swelling is gone and the sense of something being there has mostly faded. +6-8W Almost invisible The mark is almost invisible. A brief twinge, a pinching feeling or light itching can still occur at the site now and then. If it lasts or gets worse, or there is redness, swelling, warmth or fever, consult the physician who did the installation. Healing varies by individual; your timing and sensations may differ. For anything that feels unusual, follow your physician's aftercare guidance. Until it is fixed in place About 2 weeks to 1 month after installation, a collagen capsule forms around the implant and holds it in place. Until then it can shift slightly under the skin. If it settled next to bone and took a hard knock, the glass could break against the bone: that possibility is not zero. We have had no such reports, but please take care with the following while it settles. During the installation a small vein near the site is sometimes affected, which can leave the skin slightly blue for a few hours afterward; this settles on its own. Avoid strenuous exercise. Do not put pressure on the site. Do not touch, poke or fidget with the site. Avoid onsen and sauna. Avoid strong-gripping activities such as rock climbing or shooting. When putting a hand in a pocket or a glove, take care not to drag the skin around the site. Use a waterproof dressing when washing your hands or showering, and a breathable one the rest of the time, to lower infection risk. Once the wound has fully closed, a dressing is no longer needed. This is general guidance; your physician's own instructions always come first. WHO DOES WHAT VivoKey Japan Explains the products, confirms the fit, takes payment for the implant, issues the installation voucher, and sends the implant to your partner physician. Product and use-case guidance Voucher issued once payment is confirmed Coordination with partner physicians, and customer support Partner physician Checks your ID and voucher on the day, installs the implant, and explains the aftercare. The installation fee is set by each partner physician and paid to them directly on the day. VivoKey Japan receives no part of it. Installation and medical judgment ID and voucher check Aftercare and the installation fee You Choose the product, book with your partner physician once the voucher is issued, bring a government ID on the day, and follow your physician's aftercare instructions. Decide what you want it for first Book after the voucher is issued Follow the aftercare guidance NEXT Before you order The acknowledgements, the warnings, and the refund rules. Read first -> What it costs The implant price plus the partner physician's installation fee, added up. See the total -> Partner physicians The partner physicians in Tokyo and Miyagi, the map, and the day-of checklist. Map and details -> Ask on official LINE --- ## https://vivokey.jp/human-microchip-japan.html GUIDE / FOR BEGINNERS Microchips in people, in Japan Maybe you saw it on TV, maybe a friend mentioned it, maybe you searched out of curiosity. This page answers the everyday questions plainly: what it really is, what people do with one, and how getting one installed works in Japan. Ask on official LINE Subdermal implants, in plain words THE PLAIN ANSWER FIRST THE FULL EXPLANATION -> A small passive NFC implant. It works only while a reader is held to it. The word "microchip" sounds dramatic. The product is practical: a transponder with no battery, and on most models a little data you write and rewrite yourself. The common ones are sealed in biocompatible glass, 2.1 to 3.1 mm across and 14 to 15 mm long. What it looks like, how it works and why there are several types are on Subdermal implants, in plain words . Can a microchip implant track your location? No. There is no GPS and no radio of its own. It is a passive NFC transponder: it has no battery and no power source, and it does nothing at all unless an NFC reader is held against it. Away from a reader there is nothing to read and nothing being sent. Can you get a microchip implant in Japan? Yes. VivoKey Japan sells the implant and issues an installation voucher; installation is carried out by a partner physician. The order and the installation are handled separately. What do people use implantable microchips for? Sharing a link or contact card, launching Shortcuts on a compatible smartphone, opening a smart lock you administer, and stronger verification with Spark 2. THE QUESTIONS PEOPLE ASK The important ones are simple. Can it track me? No. No GPS, no radio of its own, no battery. It does nothing at all unless a reader is held against it, so away from a reader there is nothing being sent. What it is and is not -> Is it a medical device? VivoKey Japan does not sell or describe these as medical devices, and does not intend them for medical use. They are not intended to diagnose, treat, prevent or cure any disease, and they are not intended to affect the structure or function of the body. Our reading of the Act is set out on the regulatory status page. VivoKey Japan requires installation by a physician as its own standard. Regulatory position -> Can I pay with it? No, and not for transit cards either. VivoKey Japan does not sell payment-capable implants. Store and transit readers run on networks controlled by the payment operators, and an implant could only pay if those operators chose to support it. Safety and FAQ -> Who can order? Under 18: guardian's consent required. One implant per order. Payment by bank transfer. Before you order -> Does it hurt? How does it heal? Pain, swelling, wound care and removal are answered by the physician at your consultation. The common questions are on the safety page. Safety and FAQ -> Where you can have it installed, how to order and what it costs are each answered in one place: Map and partner physician details / Read this before ordering / Every price, added up . THE PATH IN JAPAN THE FULL PROCESS -> You do not start by searching for a physician. You start with the product. 1. Understand the basics What it is, what it stores, what it cannot do. Start on the plain-words page. Subdermal implants, in plain words -> 2. Choose from the job Sharing, LED color, access readers, Spark 2 verification: each one points to a different product. Compare products -> 3. Order, then book After payment clears the installation voucher arrives and the implant ships to your partner physician. You book the appointment yourself, from the voucher. How it works -> ASK IN WRITING Product and order questions are answered on the official LINE account , in writing, so the details stay accurate. Send what you want to do before you send a product name. Ask on official LINE Compare products and prices --- ## https://vivokey.jp/ Most asked OFFICIAL JAPAN DISTRIBUTOR VIVOKEY JAPAN Where the body meets the digital. Implants that sit just under the skin of the hand. Most carry a transponder: keys, contact cards and logins, with nothing to carry. Others are a magnet, or simply a light. VivoKey Japan supplies the implant; partner physicians install it. View products How it works NFC 13.56 MHz · PASSIVE · CLOSE RANGE ONLY MOST ASKED Where can I have it installed? Partner physicians in Tokyo and Miyagi, at three locations (Shinjuku-ku, Ota-ku and Aoba-ku, Sendai). No partner physician near you? There is one thing that helps. Map and partner physician details How do I actually order one? On official LINE. Tell us which implant you want. We confirm your partner physician and their fee, then you pay by bank transfer. The installation voucher link is sent by official LINE within 24 hours of payment confirmation. One implant per order. Order on official LINE Read this before ordering How much does it cost, all in? The implant from ¥26,620 incl. tax, plus the partner physician's fee of ¥30,000 to ¥35,000 on the day, for a glass implant. There are no other costs. A flex implant such as an Apex is priced differently. Please ask us on official LINE. Every price, added up When can I have it done? You book with your partner physician yourself once the voucher arrives. Stocked implants ship to the partner physician once payment is confirmed. Special orders such as Apex take longer, and we tell you how long when you contact us. The whole process, step by step Also asked How much does it hurt? Can I have an MRI? Will it set off airport security? What can I do with my iPhone? IMPLANT CATALOG VIEW ALL PRODUCTS -> Spark 2 SECURE ID Cryptographic authentication for proving it is genuine. Sharing through the Spark Actions app. ¥26,620 incl. tax Details xSIID WHITE xSIID NFC + LED A solid first implant. Writable NFC, and an LED that lights when it is read. Red or white. ¥29,480 incl. tax Details NExT v2 BLUE NExT v2 NFC + LED + 125 kHz The same writable NFC as the xSIID with a green or blue LED, plus a 125 kHz side for matching readers. ¥33,110 incl. tax Details SPECIAL ORDER Apex Module Apex Spectrum Apex APPLET PLATFORM A secure element under the skin: OTP, FIDO2, PGP. Three antennas, by special order. from ¥132,000 incl. tax Details HOW IT WORKS 01 Choose Choose the implant 02 Order Order on LINE, pay by bank transfer 03 Voucher Your voucher arrives on LINE 04 Book Book with your physician yourself 05 Install Go with your voucher and ID It sits under the skin of the hand, and a physician can remove it later. See the full process USE CASES Digital business card and profile sharing Door locks and access control readers Launch smartphone Shortcuts Control smart home devices Share links, text and contact cards Identity verification (Spark 2) and key storage (Apex) Not for payment. VivoKey Japan does not sell payment-capable implants. Store and transit readers run on networks controlled by the payment operators, and an implant could only pay if those operators chose to support it. Full answer . More use cases INSTALLATION Partner physicians, 3 locations Partner physician A (Shinjuku-ku) ¥35,000 incl. tax / Weekdays (closed Tue, Wed), card OK Partner physician B (near Omori Station) ¥30,000 incl. tax / Weekends only, cash only Partner physician C (around Kita-Yonbanchō Station, Aoba-ku, Sendai) ¥33,000 incl. tax / Any day by appointment, card or QR payment On-the-day process, precautions and aftercare The installation fee is set by your partner physician and paid to them directly on the day. Where to go is on your installation voucher. Map and details SAFETY Sealed in biocompatible glass Tell the staff before an MRI Risks and things to know No location tracking Frequently asked questions About removal Everything you need to decide is on this site, before you buy. Read about safety SERVICES Installation voucher A link arrives on the official LINE account, and it issues your installation voucher, a QR code. About the voucher -> ChiLi 🌶️ your links, on your chip Tap your implant, show your links. No app, no account, nothing stored on a server. See how it works -> All the apps 10 apps for your implant, from Apex Manager to SIDEN, and what each one is for. See the apps -> QUICK ANSWERS No battery The implants are passive. They are powered only for the moment a compatible reader or smartphone is held to them. Not a payment device Not for payment. VivoKey Japan does not sell payment-capable implants. Store and transit readers run on networks controlled by the payment operators, and an implant could only pay if those operators chose to support it. --- ## https://vivokey.jp/kbr1.html ACCESSORY / KBR1 KBR1: the desktop reader A USB reader that types your implant's UID like a keyboard. For desks, demos and quick reads without pulling out a phone. TYPE USB reader OUTPUT Keyboard-style UID STOCK On request Ask on official LINE BEST FOR Where it earns its place Development work, testing door and login systems at your desk, kiosk setups, and logging into your own machine. Tap the implant to the reader and the UID lands in whatever field has focus No phone in hand, no app: the reader does the reading See the implants it reads -> WHAT IT DOES, AND DOES NOT What it does Plug in and it works: no setup Reads the UID of ISO14443A implants: Spark 2, xSIID, NExT and NExT v2 See what readers and door systems actually do -> Where it stops A UID is unique but not encrypted; any NFC reader can read it, so do not use it as a password on shared or public machines Not a security system on its own; add multi-factor authentication for sensitive accounts SPECIFICATIONS Type USB reader (accessory) Connection USB Output Keyboard emulation: UID, then Enter OS Windows, macOS, most Linux, no extra driver AVAILABILITY ¥13,800 incl. tax, shipping included The price includes tax and shipping. The KBR1 is ordered in: we bring one in when you ask for it, so there is a lead time rather than a shelf. Ask on official LINE and we will confirm the current lead time. It is a desk accessory, so it needs no physician and no voucher. Once your order is confirmed and your payment received, we cannot accept a cancellation or return for a change of mind ( cancellation ). A faulty or wrong item is handled separately. --- ## https://vivokey.jp/media.html MEDIA The implant story, without the sci-fi If you are covering microchip implants in Japan, we can give you the calm, accurate version. We prefer accuracy over headlines. Enquiries on the official LINE account. Media enquiries on LINE TOPICS What we can talk about, plainly, including what these implants cannot do. What implantable NFC products can actually do in Japan today The difference between Spark 2 secure identity and writable NFC sharing Why Japan uses partner physicians and installation vouchers Safety, myths, and the limits that should be explained clearly OFFICIAL RELATIONSHIP VivoKey Japan is the official Japan importer and distributor for VivoKey Technologies and Dangerous Things. In Japan, we also support the work of MediHome. VivoKey Technologies The secure identity side: Spark 2, the Apex platform, and the Verify API. Dangerous Things The hardware and community side: the x-series glass implants, flex implants, and tools. MediHome A Japanese medical solutions company. VivoKey Japan supports their work. WHEN YOU CONTACT US Publication or channel So we can send the right materials with the reply. Topic and angle So the first reply already covers what you are writing about. Deadline So we can tell you at once whether we can meet it. CONTACT COMPANY DETAILS -> Official LINE Add as a friend Who we can put in front of you We answer as VivoKey Japan. We do not put customers or partner physicians in front of a camera or a microphone, and partner physicians' names are not published on this site. --- ## https://vivokey.jp/medical-device-status.html REGULATORY Medical device status: our position Our implants are passive NFC/RFID accessories. Here is how we understand their position in Japan, and why we still require a physician for the installation. Ask on official LINE The short answer Our position, and the Act it is read against What this means when you order 01 The short answer These are passive NFC/RFID accessories. We do not sell, describe or intend them for any medical purpose, and a partner physician installs them as our own standard. 02 Our position, and the Act it is read against Whether something counts as a medical device depends on what it is intended to do, not on the fact that it sits under the skin. Our implants are passive NFC/RFID accessories: held to a reader, they return the credentials the user registered or the data written to them. We do not market, sell or intend them for any medical purpose, and our position is therefore that they do not fall within the Act's definition of a medical device. That is our reading, not a determination issued by the authorities. Under Japan's Pharmaceuticals and Medical Devices Act (薬機法), Article 2, Paragraph 4 defines a medical device by its medical intended use: diagnosing, treating or preventing disease, or affecting the structure or functioning of the body. A passive NFC/RFID accessory that makes no medical claims falls outside that definition and is treated as a general accessory (雑貨). 03 What this means when you order The implant itself is an accessory. As our own safety and quality standard, VivoKey Japan requires that installation and removal are performed by a physician, who is responsible for them. Every voucher is redeemed with a partner physician. The installation method we specify may include steps that only a physician may perform in Japan, local anesthesia among them. The physician examines you first and decides whether to proceed; that decision is always theirs. This page describes VivoKey Japan's own understanding. It is general information, not legal advice. Nowhere on this site are these products described, sold or intended as medical devices. Questions are welcome on official LINE . RELATED Safety and FAQ Materials, everyday life with an implant, and the questions we are asked most. Open -> Installation and partner physicians The partner physicians, the on-the-day process and aftercare. Open -> Before you order The acknowledgements and conditions to read before placing an order. Open -> --- ## https://vivokey.jp/nextv2.html PRODUCT / NEXT V2 Two coils. Two chips. One implant The color pick. NExT v2 is how you get a green or blue LED. Writable NFC sharing works the same way as xSIID, plus a second 125 kHz (T5577) chip for specific mixed-reader setups. SIZE 3.1 × 15 mm INTERFACE NFC Type 2 + 125 kHz T5577 LED Green / Blue PRICE ¥33,110 incl. tax Ask about NExT v2 on LINE Price and how to order Special order LED COLORS Green Available Blue Available White Special request Red Never produced Green Blue Most customers in Japan choose NExT v2 for the color. Green and blue are the two LED colors xSIID does not offer, and both are in stock in Japan. White is a special request. Red was never produced for NExT v2; for a red LED, see xSIID. BEST FOR Anyone who wants a green or blue LED. The 125 kHz side is a bonus for people who already know their readers need it. What it does Green or blue LED, in stock in Japan; white by special request Writable NFC for day-to-day sharing The LED runs on power harvested by the NFC chip, so it takes nothing away from the read A second 125 kHz T5577 chip for specific reader environments What it does not do Not for payment. VivoKey Japan does not sell payment-capable implants. Store and transit readers run on networks controlled by the payment operators, and an implant could only pay if those operators chose to support it. 125 kHz compatibility depends on the actual reader family and installation environment; it does not work with every lock or badge system Slightly larger body (3.1 mm) because it carries two chip systems Anything written to it can be read by anyone with a nearby NFC reader; do not write anything you would not want a stranger to see GOOD TO KNOW The 125 kHz side The glass holds two independent chip systems, each with its own coil: the NFC side you write and share from every day, and this second, 125 kHz side. It answers readers in the family some older badges and locks still use. It only matters when your own reader is one of them, and it does nothing otherwise. Test the real hardware before you count on it. Readers and door locks -> NExT v2 or xSIID? Same writable NFC sharing either way. Pick NExT v2 for a green or blue LED, or when a 125 kHz side might help. Pick xSIID for a red or white LED with nothing else to explain. Compare with xSIID -> SPECIFICATIONS NFC side NXP NTAG I2C Plus 1K, NT3H2111 (888 bytes user memory) LF side T5577 / ATA5577-family 125 kHz chip Radio standards 13.56 MHz NFC, and 125 kHz LF for selected setups LED Green or blue (white by special request), lit by the reader's field Size 3.1 × 15 mm, biocompatible glass NFC datasheet NXP NTAG I2C Plus LF datasheet Microchip ATA5577C The NFC side is the 1K part: 888 bytes of user memory, measured on a unit in Japan. xSIID carries the 2K part (1912 bytes). Both are ample for a contact card and a few links. APPS SIDEN VivoKey Japan's companion app for xSIID and NExT v2 owners. SIDEN on the App Store -> ‹ › SHARE YOUR LINKS ABOUT CHILI -> ChiLi 🌶️ your links, on your chip Tap your implant, show your links. No app, no account, nothing stored on a server. See how it works -> Make yours in a minute Fill in your name and links, pick a color and a background, and write the link to your chip from your phone. Make yours -> MRI AND IMAGING Before an MRI scan Full MRI advisory NExT v2 is x-series and, in the manufacturer's own words, identical in materials to Spark 2 with different software on the silicon, so its ferrite is the same kind as Spark 2's. The one difference is quantity: where Spark 2 has a single ferrite rod, NExT v2 has two short ones, one for each frequency, which together come to slightly more. Dangerous Things states on the product page that it is MR Conditional and, as the manufacturer, publishes an x-series MR advisory: up to 3 T, with the patient monitored throughout and the scan stopped at once if anything is felt. Before a scan, ask us on official LINE for the manufacturer's advisory to share with the imaging facility, and the facility makes the final call. Expect a local artifact and tell the imaging staff where it is. WARRANTY FULL TERMS -> NExT v2: limited lifetime warranty from the manufacturer, on manufacturing defects. The full terms for every product family are on the terms page . Limited lifetime warranty The manufacturer provides a limited lifetime warranty covering manufacturing defects for the life of the product line: while it is still producing that product and the product is still in stock, a failure caused by a manufacturing defect is replaced free of charge. The replacement is determined by the manufacturer, under its warranty terms and product availability. The fee for removing a faulty unit is the customer's. PRICE AND ORDER TOTAL COST -> IMPLANT PRICE ¥33,110 incl. tax PAYMENT Bank transfer VOUCHER The installation voucher link is sent by official LINE within 24 hours of payment confirmation. INSTALLATION FEE The installation fee is set by your partner physician and paid to them directly on the day. Currently ¥30,000 to ¥35,000 incl. tax for the glass x-series, depending on the partner physician. One implant per order. Under 18: guardian's consent required. See before you order . A partner physician places it. Your installation voucher tells you where to go. Choose green or blue when you order. White is a special request, so ask on LINE first. Order on official LINE Before you order See the full process Compare all implants --- ## https://vivokey.jp/nfc-chip-implant.html GUIDE / NFC CHIP IMPLANT Which implant, and what reads it If you searched for an NFC chip implant, an NFC chip in the hand or body-embedded NFC, this is the practical version: what happens when you tap a phone, what needs a specific reader, and how ordering works in Japan. FREQUENCY 13.56 MHz STANDARD ISO 14443A POWER Passive, powered by the reader RANGE Close range only Ask on official LINE START WITH THE READER WHAT AN IMPLANT IS -> NFC is useful only when the phone, reader or system matches the implant. Phone-readable sharing For links, profiles, contact cards and Shortcuts, writable NFC is the easiest place to start. xSIID (red or white LED) or NExT v2 (green or blue). See xSIID -> Specific reader environments Locks, entry readers and 125 kHz systems need the real reader family checked first. NExT v2 adds the LF side, and only makes sense when that environment matches. Reader reality -> Verification Spark 2 is not a writable tag. It answers a challenge with AES mutual authentication, for authenticity and API-backed verification. See Spark 2 -> NFC BY PRODUCT ALL PRODUCTS -> All four speak 13.56 MHz ISO 14443A. What differs is what sits behind the antenna. Scroll to compare -> Product NFC What it holds LED xSIID NFC Forum Type 2, NTAG I2C Plus 2K About 868 bytes of NDEF space from a phone, written by you. A second sector on the chip is out of a phone's reach Red or white NExT v2 NFC Forum Type 2, NTAG I2C Plus 1K, plus a 125 kHz T5577 About 868 bytes of NDEF space from a phone, written by you Green or blue Spark 2 NFC Forum Type 4, AES mutual authentication A cryptographic identity; the link it opens is managed in Spark Actions None Apex NFC Forum Type 4, Java Card 3.0.5 (JCOP 4) Applets you add: OTP, FIDO2/U2F, PGP, NFC Share Spectrum only (RGB) THE SILICON The part that answers the reader, by product. Datasheets are the manufacturer's own. xSIID NTAG I2C PLUS 2K Core chip NXP NTAG I2C Plus 2K (1912 bytes user memory; about 868 bytes reachable from a phone) Radio standard 13.56 MHz NFC Forum Type 2 LED Red or white, powered by the NFC field Size 2.1 × 15 mm, biocompatible glass Main use Writable NFC sharing, links, contact data, and shortcuts Datasheet NXP NTAG I2C Plus NExT v2 NTAG I2C PLUS 1K + T5577 NFC side NXP NTAG I2C Plus 1K, NT3H2111 (888 bytes user memory) LF side T5577 / ATA5577-family 125 kHz chip Radio standards 13.56 MHz NFC, and 125 kHz LF for selected setups LED Green or blue (white by special request), lit by the reader's field Size 3.1 × 15 mm, biocompatible glass NFC datasheet NXP NTAG I2C Plus LF datasheet Microchip ATA5577C Spark 2 SECURE NFC TYPE 4 Core platform Secure NFC Type 4 / AES-capable platform in the NTAG 413 / 424 DNA family Radio standard 13.56 MHz, ISO/IEC 14443 Type A Main role Authenticity verification and API-backed identity workflows Size 2.1 × 14 mm, biocompatible glass Technical references Official Verify API docs, JWT docs, and MR Conditional documentation for Spark 2 Apex JAVA CARD / JCOP 4 Chip NXP JCOP 4 / Java Card 3.0.5 Certification Common Criteria EAL 6+ Memory 83,872 bytes of application EEPROM (about 82 kB), plus about 4 kB of transient RAM Applet delivery Over the Fidesmo platform, managed with the VivoKey Apex Manager and Fidesmo apps WHAT A TAP DOES THE WHOLE PROCESS -> When you hold a phone to it A compatible smartphone powers the implant for the moment it is held over it and reads the NDEF record inside: a URL opens, a contact card is offered, a Shortcut fires. You write that record with any NFC writing app, the same way you would write a sticker. The antenna is small, so the phone's NFC spot has to sit right over it; that takes a few tries the first day and none after. The LED on xSIID and NExT v2 lights while the phone is on it. A good first LINE message If you are not sure which product fits, send the goal first rather than a product name. What you want to do with NFC Whether a specific reader, lock or phone is involved Whether you have already read the installation flow NOT ONE PRODUCT TYPE CAPABILITY BY TECHNOLOGY -> Writable means readable xSIID and NExT v2 have no secure element. Whatever you store can be read by any compatible reader held to your hand, so they are for sharing and convenience, not for secrets. What each technology can and cannot do is set out in one place, by technology rather than by product: what an implant can do and the limits to know early . Where you can have it installed, how to order and what it costs are each answered in one place: Map and partner physician details / Read this before ordering / Every price, added up . --- ## https://vivokey.jp/origin.html PROVENANCE Where this technology came from It goes inside your body, so where it came from, who built it, and what went wrong along the way are things you are entitled to check before you buy. Not a company story. A dated record, with the sources attached. About VivoKey Japan Ask on official LINE The microchip implants VivoKey Japan handles were not invented in Japan. Behind them is an American engineer who has carried RFID in his own hands since 2005, the company he built from it, and a second company built to make an implant able to prove cryptographically that it is genuine. What matters is not that something has been sold for a long time. It is whether you can follow how it started, what broke, how it was changed, and how that became the product in front of you. FROM 2005 TO NOW 2005 2006 2007 2010 2013 2016 VivoKey 2018 2019 2020 2022 Japan Setbacks 2005 It started with putting one in his own hand In early 2005 Amal Graafstra implanted an RFID transponder in his left hand. The reason was not futuristic. He worked in computers and was tired of carrying keys and access cards, and wondered whether he could be the key instead of carrying one. A second transponder went into the matching spot in his right hand that June. He built real things on them: door locks, computer login, vehicle access, safes. This is not a story assembled later by a marketing department. It is in interviews and technical articles from 2005 onward, written while it was happening. Sources Interview archive, from June 2005 WIRED, 2007 2006 A book, seven years before there was a company Amal Graafstra wrote RFID Toys, published by Wiley in 2006: 320 pages of building things with RFID, including door locks, vehicle access, computer login, electronic safes, readers, tags, and implantable RFID. The company that sells implants did not exist for another seven years. The same year he talked about RFID, privacy and his own implants on CBC Radio's The Current in Canada, and on the Bob Rivers Show in the United States. Sources Open Library: RFID Toys, Wiley, 2006. ISBN 978-0-471-77196-8 EE Times, reprinted with Wiley's permission Interview archive 2007 Writing about the weaknesses, not only the uses IEEE Spectrum published Hands On, written by him, in its March 2007 issue. It is not a novelty piece. It covers how RFID works, the access systems he built, security, tag cloning, privacy and the limits of the technology. What stands out is that it covers the weaknesses, tag cloning and privacy among them, and not only the uses. Sources IEEE Spectrum 44(3), pp. 18 to 23. DOI 10.1109/MSPEC.2007.323420 Free version on spectrum.ieee.org 2010 Discussed as a social question, not a gadget Amal Graafstra was invited to the IEEE International Symposium on Technology and Society at the University of Wollongong, Australia, in June 2010, and co-authored a paper there with Katina Michael and M. G. Michael. By then implants were being discussed in terms of social impact, privacy, security, and the community of people actually using them. Sources IEEE ISTAS 2010, pp. 498 to 516. DOI 10.1109/ISTAS.2010.5514602 IEEE Technology and Society 2013 Dangerous Things, and the first NFC implant People who saw what Amal Graafstra was doing started asking how to get one. At the time it was not easy for an ordinary buyer to obtain an RFID implant whose materials and quality were controlled for use in a body, and people were sourcing unknown tags from wherever they could. He has said that was one of the reasons he started Dangerous Things. The first big project was the xNT. The Indiegogo campaign went live on 29 October 2013. The tags he had been using were not NFC Forum compliant, so an ordinary NFC phone could not talk to them; the xNT put a compliant chip into an implantable form. Dangerous Things records it as the first NFC implant, and The Guardian described it at the time as the world's first NFC-compliant radio frequency identity tag that can be implanted inside your body. The same year he gave a TEDxSFU talk on biohacking. Sources Dangerous Things, official timeline The campaign announcement, 29 October 2013 The Guardian, 1 November 2013 NFCW, 30 October 2013 Hackaday interview TEDxSFU talk 2016 The turn: from a readable number to a provable device An ordinary RFID or NFC tag has a real limitation. Reading a UID or stored data tells you what the chip says it is. It does not prove, by cryptography, that the chip is genuine. The question Amal Graafstra took on was how to make a chip inside a body work as an actual security key. In 2016 that produced UKI, a first generation smart card implant using an NXP P40 secure element. Exactly two were made and installed. UKI stood for You Are The Key. Sources Dangerous Things, official timeline Where the names came from, in his own words VivoKey Why there are two companies Secure identity needed to be its own platform rather than one product in a biohacking catalog, so it became a separate company. The name is in vivo, inside the living body, plus key. A key inside the body. Dangerous Things is the hardware, retail and community side: the x-series glass implants, flex implants and tools, including many ordinary transponders that are not secure VivoKey devices. VivoKey Technologies is the cryptography, secure element, digital identity and authentication side. They remain closely linked, and both were founded by Amal Graafstra. A US patent naming him as inventor, In vivo identity and security application implant and method, was filed in March 2017 and granted in December 2018. It was originally assigned to Dangerous Things LLC and reassigned to VivoKey Technologies Inc in August 2018, which is visible on the patent record itself. Sources US Patent 10,147,248 US Patent 11,108,769, Cryptobionic system Where the names came from 2018 SPARK, and what cryptographic authentication actually changes SPARK was VivoKey's first product, in 2018: ISO15693, NFC Type 5, AES challenge and response. Its job is different in kind from an NFC tag's. Rather than reading a number and concluding this number therefore this person, the chip's own cryptographic function is used to verify that this physical chip is a genuine VivoKey device. The secret never leaves the chip. The chip answers a challenge. So what is verified is not a device claiming a number, but a device holding the correct key. That distinction is the whole of it. The chip alone was not the point. A platform was built alongside it so that third party applications could verify a VivoKey through an API: read the chip, send a cryptographic challenge, the chip computes, VivoKey verifies the response, and the application learns that a genuine device was actually scanned at that moment. On success a signed token is issued. What it amounts to is a physical cryptographic token that lives inside a body. Privacy is part of that design. The identifier returned by the verification API is not the raw NFC UID; it is derived per developer account, so two different developers verifying the same implant do not receive the same identifier. That makes it hard for separate services to match the same physical device against each other without the user's agreement. Sources VivoKey, SPARK technical information VivoKey Verify API Authenticity JWT Dangerous Things, official timeline 2019 SPARK 2, and the reason it exists SPARK 2 arrived in November 2019 and moved from ISO15693 to ISO14443A, NFC Type 4, with AES mutual authentication. The reason is worth stating plainly, because it is the honest one: iPhones could not do what SPARK 1 needed. In the maker's own words, SPARK 2 followed when it was clear Apple was not going to support ISO15693 properly, even in iOS 13. SPARK 2 is still a current product. Sources Dangerous Things, official timeline The maker's own explanation of the naming and the reasons 2020 Why SPARK 1 did not work on an iPhone SPARK 1 uses ISO/IEC 15693, and its authentication depends on the AUTHENTICATE command, code 0x35, defined in ISO/IEC 15693-3. Until iOS 14 there was no way for any third party iPhone application to send it. Apple's Core NFC did allow custom commands for ISO15693 tags, but restricted them to the manufacturer range 0xA0 to 0xDF, and a standardized command at 0x35 falls outside that range by construction. So there was no iOS application, and using SPARK 1's authentication meant using Android in practice. From 2019 this was worked on directly with Apple's engineers, in public, on Apple's own developer forums, and demonstration hardware was supplied to Apple. Apple presented expanded ISO15693 support at WWDC20 in June 2020, saying it had added the enhancement defined by the ISO15693 specification third edition 2019, and listing authenticate among the new operations. iOS 14 shipped authenticate on NFCISO15693Tag, documented by Apple as the Authenticate command, 0x35 command code, as defined in ISO15693-3 specification. iOS 14 reached Japan on 17 September 2020. VivoKey's own account of it, written at the time by Amal Graafstra on 23 June 2020, was: after working directly with Apple developer support for nearly a year, we have liftoff. This was the command we needed which was not supported at all in iOS 13. The app record was opened on 24 June 2020, two days after that WWDC session, and the VivoKey iOS application went on sale on the App Store on 2 March 2021. It was later replaced by Spark Actions, when the authentication backend moved from OpenID Connect to JWT. Apple has never publicly said why it added the command, and we do not claim it was because of us. What can be checked is the sequence: the request, the exchanges on Apple's own forum, the hardware supplied, and what Apple then shipped and documented. Sources Apple Developer Forums, the thread itself, June 2020 Apple, WWDC20 session 10209, What's new in Core NFC Apple documentation, NFCISO15693Tag authenticate The maker's announcement, 23 June 2020 VivoKey Technologies, team Spark Actions, the app in use today Introducing VivoKey Japan, posted by Amal Graafstra, 12 January 2021 2022 Apex: running applications inside the implant SPARK does one thing: cryptographic authentication. Apex, generally released as Apex Flex in July 2022, is a JavaCard platform on an NXP secure element, where you can add applets to bring in new functions rather than the chip having a single fixed one. In plain terms, that means logging into a website without a password, producing the six digit codes some services ask for, signing and encrypting files and mail, holding cryptocurrency keys, and unlocking a car. It does not mean paying for anything. The technical names for those, and for the rest: FIDO2 (backwards compatible with U2F), OTP and TOTP, HMAC-SHA1, OpenPGP and SmartPGP, the VivoKey SPARK function, NFC data sharing, Satochip, Seedkeeper, and Status.im Keycard. The Tesla vehicle key is a community applet and compatibility varies by model. Contactless payment is not available on the Apex Flex implant. If SPARK proves that the chip you have is genuine, Apex is the step after that: a secure element inside the body, running more than one security application on top of it. Sources VivoKey Apex platform Dangerous Things, official timeline Japan Being understood comes before selling VivoKey Japan treats being understood as the work that comes before selling. There is still not much accurate information about this technology available in Japanese, so the information comes first. The person answering questions on our official LINE works on this technology's software, and is in direct contact with its maker, Amal Graafstra. VivoKey Japan does not buy generic NFC tags abroad and sell them under its own brand. It handles Dangerous Things and VivoKey Technologies products in Japan, and the work is this: Product information in Japanese Explanation before you buy Distribution within Japan Working with partner physicians Support after installation Software development, including iOS Checking how these products actually behave in Japan Setbacks Not everything went to plan The UKI prototype of 2016 was abandoned. A bug was found in its NXP P40 secure element that would brick the chip unrecoverably if the field coupling was too weak. The 2018 successor, a P60 based Flex One Beta, hit a similar bricking problem and was recalled. Apex then waited for NXP's P71, with a custom ROM developed together with Fidesmo; sample chips arrived in late 2020 and Apex Flex shipped in July 2022. Both were decided once it was clear that a chip already inside a body could stop working. Shipping stopped, and they waited for the next silicon. The platform direction changed too. VivoKey originally planned an internet wide digital identity platform built around SPARK, combined with standards such as OpenID Connect. Identity on the internet did not consolidate the way that plan assumed, and in January 2024 VivoKey restructured: the old profile feature was superseded by Spark Actions, and the authentication API became the foundation for the services built on it. In technical development, being able to change when the real world turns out different is often worth more than holding to the first design. We think the fact that these changes are documented publicly is itself information you need in order to judge the product. Sources The development history, in the maker's own words VivoKey, 2024 platform transition Dangerous Things, official timeline It is not made in Japan The implants VivoKey Japan handles were not designed from nothing in Japan. Whether something works in Japan and whether it was made in Japan are two different questions, though. These products run on international standards: ISO14443A, the NFC Forum tag types, FIDO2, OpenPGP. None of it is built for one country, and NFC-capable smartphones sold in Japan read them as they are. The everyday habit of holding something to a reader already exists here. Where adapting is needed it happens in software, and that is part of the work described above. Being sold in Japan, being explained in Japanese, being sold to Japanese customers: none of that by itself decides whether a product is safe, whether it performs, whether it is secure, or whether it is well made. What decides it is this. Who made it What the technology actually is What it can do What it cannot do What materials it uses What testing has been done What has gone wrong in the past Whether you can check any of it for yourself Not “trust us,” but “check it yourself” For something that goes inside your body, we do not want you to buy on trust alone. Specifications. Datasheets. MRI testing. Materials. Technical limits. Past products. The development history. And the people making it. We publish what can be checked, and you decide from there. Before you put technology under your skin, you have every right to know where it came from. CHECK IT FOR YOURSELF Amal Graafstra Personal archive Interview archive Dangerous Things Official site Company and product timeline About RFID and NFC implants VivoKey Technologies Official site About and team SPARK Apex Verify API Authenticity JWT 2024 platform transition Independent and historical IEEE Spectrum, Hands On, 2007. DOI 10.1109/MSPEC.2007.323420 IEEE Technology and Society Open Library, RFID Toys WIRED, 2007 TEDxSFU, 2013 The Guardian, 2013 NFCW, 2013 Hackaday, 2013 CNN, 2014 National Geographic, 2015 The Washington Post, 2016 Patents US 10,147,248, In vivo identity and security application implant and method US 11,108,769, Cryptobionic system and associated devices and methods --- ## https://vivokey.jp/privacy.html PRIVACY How we handle your information What we receive when you order, what we use it for, and who else sees it. The only party we share with is the partner physician you book with, and only what your appointment needs. You can ask us at any time to see, correct or stop our use of your information. Ask on official LINE Who is responsible What counts as personal information What we use it for What the partner physician receives Other third parties How it is protected Disclosure, correction and suspension Cookies Contact Revisions 01 Who is responsible VivoKey Japan G.K. (representative: Ryuuzaki Julio), 8F Chiba Daiei Building, 1-14-13 Fujimi, Chuo-ku, Chiba-shi, Chiba 260-0015, complies with the Act on the Protection of Personal Information and handles your information under this policy. 02 What counts as personal information Information about a living individual that can identify that person, directly or by easy combination with other information, as defined in Article 2, Paragraph 1 of the Act. For us this is mainly the name, contact details and order details we receive when you order. Personal identifier codes, such as an individual number (My Number) or a passport number, also count as personal information. 03 What we use it for To provide the service: answering enquiries, guiding your order, issuing the installation voucher, shipping the implant to the partner physician, and matching you to the shipped unit. To coordinate your appointment with the partner physician, to provide support, to notify you of changes to our terms, and to respond to any breach of them. To tell you about our products and services, and for purposes incidental to the ones above. To improve the service and develop new services, including statistics prepared in a form that cannot identify anyone. We may change these purposes only where the new purpose is reasonably related to the original one, and we will announce any change. 04 What the partner physician receives The partner physician you book with receives your name and order details. Your contact details are shared only if the appointment needs them. You agree to this when you order, on the acknowledgements page. The partner physician keeps their own medical records. How they handle your information there is their responsibility, not VivoKey Japan's. 05 Other third parties Beyond that, we do not provide personal information to third parties, or use it beyond the stated purposes, without your prior consent. The law allows exceptions: where a law requires it, to protect life, body or property when consent is hard to obtain, where it is especially necessary for public health or for the healthy development of children and consent is hard to obtain, or to cooperate with a public authority carrying out its legal duties. We do not treat the following as providing your information to a third party: entrusting part of the work to a contractor, a transfer that comes with a business succession, or joint use as the Act provides for. Contractors are supervised so that your information stays protected. 06 How it is protected We obtain personal information fairly, never by deception or other improper means, and use it only within the stated purposes. Organizational and technical measures guard against loss, destruction, alteration and leakage, including access limited to the people who need it and the necessary supervision of staff. 07 Disclosure, correction and suspension You may ask us to disclose, correct, add to, delete, or stop using your personal information. After confirming the request comes from you, we respond without undue delay, as the Act requires. If we hold no such information, or decide not to make a change, we tell you so. 08 Cookies This site sets no cookies and runs no analytics. Your language and theme choices are stored in your own browser (local storage) and are never sent to us. You can clear them in your browser settings. 09 Contact Requests, questions or complaints about personal information: contact us on official LINE . For formal written contact, see the company page . The seller's details are on the legal disclosure page . 10 Revisions We review how we handle personal information from time to time and may revise this policy. The current version is always the one published here. --- ## https://vivokey.jp/products.html PRODUCTS Every implant, and the one that fits you Start from what you want to do, then compare the details below. Apex is the higher-end model, ordered in. Every price on this page is for the implant alone, tax included. INSTALLATION FEE Set by and paid to the partner physician ORDER One implant per order INSTALLATION By a partner physician Ask on official LINE CHOOSE BY WHAT YOU WANT TO DO I want it to light up An LED that lights when a compatible reader powers it, with no battery. The LED comes in red and white on xSIID, green and blue on NExT v2. Implant: xSIID / NExT v2 I want to prove it is genuine Authenticity and API-backed identity: the implant answers a cryptographic challenge instead of holding data you write. Implant: Spark 2 I have a 125 kHz reader Compatibility depends on the actual reader family and installation environment. Check your reader's standard first. For which implant fits it, see access and DIY . Implant: NExT v2 I want to carry keys FIDO2 / U2F, OTP, PGP, NFC Share and the Tesla keycard, on a secure element that runs applets. Implant: Apex IMPLANT CATALOG TOTAL COST -> Spark 2 SECURE ID Cryptographic authentication that proves the implant is genuine. Sharing through the Spark Actions app. ¥26,620 incl. tax Details xSIID WHITE xSIID NFC + LED A solid first implant. Writable NFC, and an LED that lights when it is read. Red or white. ¥29,480 incl. tax Details NExT v2 BLUE NExT v2 NFC + LED + 125 kHz The same writable NFC as the xSIID with a green or blue LED, plus a 125 kHz side for matching readers. ¥33,110 incl. tax Details SPECIAL ORDER Apex Narrow APPLET PLATFORM A secure element under the skin: OTP, FIDO2, PGP. The thinnest shape at 0.4 mm, with the shortest read range of the three. ¥132,000 incl. tax Details SPECIAL ORDER Apex Module APPLET PLATFORM The same secure element as Narrow, on the largest antenna of the three: the longest range, for long operations such as digital signing. About 14 x 35 mm, 0.8 mm thick. ¥165,000 incl. tax Details SPECIAL ORDER Apex Spectrum APPLET PLATFORM The same secure element as Narrow, in a rigid 22 mm bioresin disc, 1.9 mm thick, with an RGB LED that lights in the reader's field. Medium range. ¥159,500 incl. tax Details KBR1 USB READER A USB reader (a peripheral, not an implant) that types your implant's UID like a keyboard. Ordered in. The price includes tax and shipping, and it is delivered to the address you give us. Once your order is confirmed and your payment received, we cannot accept a cancellation or return for a change of mind (see cancellation in the terms). A faulty or wrong item is handled separately. ¥13,800 incl. tax Details ACTUAL SIZE Every implant below is drawn to the same scale, and the glass ones are shown as cross-sections so you can see the winding and the die inside. The 1 yen coin at the end (20 mm across) is there for size. Spark 2 2.1 × 14 mm xSIID 2.1 × 15 mm NExT v2 3.1 × 15 mm Apex Narrow about 7.5 to 8 × 28 mm Apex Module about 14 × 35 mm Apex Spectrum 22 mm disc SIZE REFERENCE 1 yen coin 20 mm across COMPARE Scroll to compare -> Item Spark 2 xSIID NExT v2 Apex Size 2.1 × 14 mm 2.1 × 15 mm 3.1 × 15 mm Narrow about 7.5 to 8 × 28 mm (0.4 mm thick) / Module about 14 × 35 mm (0.8 mm thick) / Spectrum 22 mm disc (1.9 mm thick) Interface NFC Type 4 / ISO14443A NFC Type 2 NFC Type 2 + 125 kHz T5577 NFC Type 4 / ISO14443A, secure element (JCOP 4) LED None Yes Yes Spectrum only (RGB) LED colors None Red / White (blue and green sold out) Green / Blue (white by special request) RGB on Spectrum; none on Narrow and Module User memory Not user-writable (authentication platform) 1912 bytes (about 868 reachable from a phone) 888 bytes (about 868 reachable from a phone) 83,872 bytes for applets Main use Authenticity and API-backed identity Sharing links and contacts, with a red or white LED Sharing, with a green or blue LED; 125 kHz for specific readers FIDO2 / U2F, OTP, PGP, NFC Share, Tesla keycard Price (incl. tax) ¥26,620 ¥29,480 ¥33,110 From ¥132,000 MRI documentation Ferrite core in the antenna. Formal MR Conditional document with defined conditions Ferrite core in the antenna. x-series MR advisory (manufacturer), up to 3 T Ferrite core in the antenna. x-series MR advisory (manufacturer), up to 3 T The manufacturer does not provide MRI data or a formal MR document for any Apex. Ask your physician and the radiology staff before any scan Warranty Limited lifetime warranty Limited lifetime warranty Limited lifetime warranty Narrow / Module: 1 year limited warranty / Spectrum: Limited lifetime warranty Apex sizes and prices are per antenna; the secure element inside is the same in all three. The installation fee is set by the partner physician and is not part of any price on this page. COLORS xSIID Available in red and white. Blue and green are sold out and discontinued. Red Available White Available Blue Sold out / discontinued Green Sold out / discontinued Colors and photos -> NExT v2 Available in green and blue. White is ordered in; red is not in the lineup. Green Available Blue Available White Special request Red Never produced Colors and photos -> SPECIALTY ALL 30 DESIGNS -> Spark 2, xSIID and NExT v2 are stocked in Japan. Everything else is ordered in, and lead time varies by product. Some of these are for experienced users. The flexUG4 tag emulator is a special order too, and it is listed on the catalog page . Ask on our official LINE. Apex: Narrow, Module, Spectrum The advanced tier: a secure element under the skin, running FIDO2, OTP, PGP and more. 3 antenna sizes, from ¥132,000 incl. tax. See the Apex page -> DESFire and other flex implants DESFire-class and other specialist implants, for people who already understand their access ecosystem. Most customers in Japan start with xSIID, NExT v2 or Spark 2. Ask about this model -> xNT / flexNT NFC implants The simplest NFC implants Dangerous Things makes. Most customers in Japan prefer xSIID or NExT v2 for the LED. Ask about this model -> NExT (classic) The original dual-chip implant from Dangerous Things. Still useful; for a current dual-frequency option most customers are better served by NExT v2. Ask about this model -> xLED field detector An LED, and only that: it lights in an NFC field. No chip inside, so it holds no data. For people who want the light and nothing else. Ask about this model -> xG3 biomagnet A biomagnet, not a chip. No chip inside, so it holds no data. It does a different job from every other product here, and it is a magnet, so it must be removed before any MRI. Please talk to us before ordering one. Ask about this model -> NEXT STEPS If you are not sure which implant fits, ask us on official LINE before ordering. The total cost is the implant price plus the partner physician's installation fee (¥30,000 to ¥35,000 incl. tax for the glass x-series). Add it up on the cost page Ask on official LINE --- ## https://vivokey.jp/safety-and-faq.html GUIDES AND FAQ Guides, and the questions Every guide on this site, and the questions. Answers here use the mechanism rather than a one-line reassurance; where another page holds the detail, this one sends you there instead of saying it again. BATTERY none GPS none INSTALL by a physician REMOVAL by a physician, later Ask on official LINE GUIDES Choosing one Products and prices Every product side by side Which implant, and what reads it Will your phone or your reader read it Access and DIY How to check a lock or reader before you buy What implants are What the object is, and what it is not Your body Questions Pain, healing, removal, MRI, airports Testing and evidence What was tested, and where the evidence stops Medical device status Our position under the Act Getting one How it works in Japan Order, voucher, booking, the day itself Before you order What to confirm, per product Installation and partner physicians Where, which days, and what the partner physician charges After you pay What arrives, and what to do with it New to this Microchips in people, in Japan For anyone who saw it somewhere Who answers what Where we stop and the physician starts For physicians For physicians considering the partnership FAQ Search 30 shown No question matches. Try another word, or ask us on the official LINE account. Installation and the physician What does "installation" mean here? The short procedure in which a partner physician places the implant just under the skin. VivoKey Japan works only with physicians; "installation" is what the implant community calls it. Is it legal in Japan? We are not aware of any law in Japan that prohibits having one, and people in Japan already have them. Our read of the position under the Pharmaceutical and Medical Device Act is on the regulatory page . General information, not legal advice. Where can I get one installed? Shinjuku-ku, Ota-ku and Aoba-ku, Sendai, in Tokyo and Miyagi. Map, fees, days and payment: partner physicians page . Where to go is on your installation voucher once your order is confirmed. Is it done under anesthesia? Yes. A local anesthetic before the incision, with the specifics decided by the physician on the day. How much does it hurt? Most describe it as brief, like a small procedure under local anesthetic. It varies by person, and pain, swelling and healing are the physician's to answer. Is there an age requirement? Under 18, you can order with a parent or guardian's consent. Whether the installation can be done, and on what conditions such as a guardian being present, depends on the partner physician's policy, so please consult us on the official LINE before ordering. Price, warranty and your information How much does it cost in Japan? Each product's price is on the products page , and the total including the installation fee on the cost page . The installation fee is set by your partner physician and paid to them directly on the day. Which products have which warranty? Spark 2, xSIID, NExT v2, and other x-series by special order: limited lifetime warranty. Apex Narrow, Apex Module, and other flex products by special order: 1 year limited warranty. Apex Spectrum, and the d-series (dNExT, dT5) by special order: limited lifetime warranty. KBR1 USB reader, and other products delivered without installation: 90 day limited warranty. The flex terms are conditional on installation by a professional and video of the installation. All of these are the manufacturer's warranty, not ours. The replacement is determined by the manufacturer, under its warranty terms and product availability. The full terms for every product family are on the terms page . What information does VivoKey Japan keep? Order details, contact information, the installation voucher and what we need to get you to your partner physician. What you store on a writable implant is yours alone. Choosing it and using it How do Spark 2, xSIID and NExT v2 differ? xSIID: writable NFC, LED lights when read. NExT v2: the same plus a 125 kHz radio, LED green or blue. Spark 2: no LED, built for authenticity and identity. Is Apex different? Yes. A Java Card secure element (JCOP 4) running applets such as OTP, FIDO2 and PGP, by special order in three antenna forms: Narrow and Module flexible, Spectrum a hard bioresin disc, warranted on different terms. No payments either. Apex page . Do I need to set the link or content before installation? No. It can be empty on the day, and you set it up afterwards from your own phone. Can I change what is on it later? Yes. On writable implants (xSIID, NExT v2) you can rewrite the link, contact card or shortcut as often as you like from a compatible smartphone. Can I use it with a smart lock or a DIY project? It depends on the reader, not the implant. Identify the reader's standard first, then see whether an implant family matches it. Buying first usually disappoints. Is there a battery inside? No. A compatible phone or reader sends a little wireless power for the moment it is read, and that is the only time it is on. Are all implants the same? No. A writable NFC implant, a dual-frequency LED implant, a Spark 2 authentication implant and an Apex secure element do different jobs and deserve different trust. What can I do with my iPhone? Tap the implant and the phone opens the URL, contact card or short text you wrote to it, or runs an iOS Shortcut. The actions live in your phone; the implant only fires them. SIDEN writes your links to an LED implant from the iPhone, and ChiLi opens a page of your links with no app. Living with it Can other people see it under the skin? Usually not. Sometimes faintly visible when the hand is clenched, and more so on a hand with very little fat under the skin. How long does it last? The glass capsule is built to last a lifetime; the chip's own life depends on how often it is read. x-series implants have been in daily use since 2013. Can it be removed later? Yes, by a physician, never yourself. A few minutes: unlike animal microchips these have no anti-migration coating. Until sterilized the removed unit counts as biohazard, so it returns to VivoKey Japan rather than to you. Ask, and we encapsulate it and send it as a keepsake. Sauna, bath and onsen? Everyday heat and bathing are not a problem for the implant itself. When you may bathe after installation is a healing question, so follow your physician's timing. Can I have an MRI? In short Tell the imaging facility you have an implant when you book. Whether the scan goes ahead is their decision on the day. Before a scan Ask us on official LINE for the manufacturer's advisory, and hand it to the imaging facility. Glass x-series The manufacturer designates them all MR Conditional, which means the conditions are written down. Each has a small ferrite rod core in its antenna. The Dangerous Things x-series MR advisory allows up to 3 T, with the patient monitored throughout and the scan stopped at once if anything is felt. Spark 2 Spark 2 has its own statement: 1.5 T and 3 T, maximum spatial field gradient 40 T/m, Normal Operating Mode, whole body averaged SAR 2 W/kg, up to 60 minutes of continuous RF. Testing found no movement or displacement after implantation. On the image Expect a local artifact around the implant. If that area itself has to be imaged, the manufacturer notes it may consider removal because of the artifact. Apex Not covered by any of this. The manufacturer does not provide MRI data, a formal MR document, or an MR card for any Apex. It describes the flex products as having no ferrite core, but that describes how they are built; it is not a test result and not a safety statement. Tell your physician and the radiology staff before any scan. Biomagnets A magnet implant must be removed before an MRI. We supply magnets by request only, and we say this plainly when we do. Will it set off airport security? Normally no: the metal mass is too small for standard metal detectors. We cannot speak for every country or system, so if you travel often, just know it is there. What it cannot do Can I use it for payments? Not for payment. VivoKey Japan does not sell payment-capable implants. Store and transit readers run on networks controlled by the payment operators, and an implant could only pay if those operators chose to support it. Payment implants do exist abroad, adapted from payment bracelets: they expire after a few years, and the network can stop them. Can it track me? No. There is no GPS, no cellular radio, and nothing that transmits on its own. The implant only answers a reader held within a few centimeters, and only at that moment, so it cannot report where you are or follow where you go. Can it block signals, read minds or shield me from surveillance? No. These are NFC and RFID implants for identification, sharing, access and authentication: not shielding, not products with a medical purpose, not anti-surveillance equipment. Our position under the Pharmaceutical and Medical Device Act is on the regulatory page . NFC itself What is NFC? Near Field Communication, a short-range radio standard. A phone or reader has to come within a few centimeters to power and read the implant. What is an NDEF record? The standard format phones use to store a URL, text, contact card or simple action on a writable NFC chip. Do old records linger after a rewrite? Normally the whole record set is replaced, but how it shows up varies by app, phone and record type. Test your intended workflow. Why does iPhone behave differently? Apple handles common NFC actions well, but not every app or payload behaves the same: contact cards and deeper write workflows depend on the app. Groups Installation and the physician 6 Price, warranty and your information 3 Choosing it and using it 8 Living with it 6 What it cannot do 3 NFC itself 4 STILL STUCK Ask us in writing on the official LINE account. Anything about your own body, the installation or the aftercare belongs to the partner physician on your voucher, and how that split works is on the page below. Ask on the official LINE account Who answers what --- ## https://vivokey.jp/spark-actions.html APP / SPARK ACTIONS What your Spark does, you set from your phone Spark Actions is the app for a Spark implant. It reads the Spark, keeps a library of saved actions and Digital Cards, and writes the one you want back to the implant over NFC. Websites, calls, email, SMS, Digital Cards and SupportNet, in one place. Free, on iPhone and Android. PRICE Free PLATFORM iOS / Android LANGUAGES Japanese / English FOR Spark 2 Get it on the App Store Get it on Google Play WHAT IT DOES ABOUT SPARK 2 -> An action is what happens on the other person's phone when they hold it to your Spark. Save several, keep them in the app, and write whichever one suits the day back to the implant. Nothing is stored on the implant except the item you chose to put there. Website Any URL: a profile page, a shop, a form. Supported website actions can also wait a moment before opening. Call, email, SMS A phone action, an email with the subject and body already filled in, or an SMS with the message ready to send. Digital Cards A contact page with a photo, name, role, company, a note and several contact fields, which the other person can import straight into their address book. A saved library Keep a work card and a private card, a shop link and a portfolio link, and switch between them whenever you like. Scan count and last seen Where the data is available, the item currently on your Spark shows how many times it has been read and when it was last seen. SupportNet A Spark 2 check-in feature: a short anonymous note from whoever scans the implant, and optionally a one-time location from their own phone. What SupportNet is -> THE APP Everything in one list The top of the screen is whatever is on your Spark right now. Everything below it is saved and ready to swap in. A card you can rewrite Change a job title or a phone number in the app, and the next person to scan gets the new one. Nothing has to be reprinted. SupportNet, set once A title, a short message for whoever scans, and the email addresses that should receive it. That is the whole setup. SUPPORTNET SupportNet is a Spark 2 feature you configure in Spark Actions. When someone scans the implant and opens the link, they can send you a short anonymous note. If they choose to, and if their own phone and browser allow it, they can attach location information from that phone, one time. The implant has no GPS and sends nothing on its own. The location comes from the other person's phone, not from the implant If a SupportNet notification carries a location, that location was read from the phone of the person who scanned you, in their browser, after they agreed to share it, and only for that one message. The implant is passive: it holds no position, keeps no history, and has no battery to send anything. 01 Set up In Spark Actions, enter a title, a short message for whoever scans, and the email addresses that should be notified. Then write it to the Spark. 02 Scan A person holding a compatible smartphone to the implant reaches the SupportNet page on their own device. 03 Note They can send a short message without giving their own name or contact details. Nothing about them is required. 04 Location Only if their phone and browser permit it and they agree: one location reading from their device travels with the message. One reading, not a feed. What you configure A title for the SupportNet item A short message shown to whoever scans The email addresses that receive the notification What the other person can send A short message, anonymously Optionally, one location reading from their own phone Their name and contact details are never required How it reaches you The message goes through the SupportNet service and on to the addresses you set It is a one-way notification, not a chat There is no way to reply to the person who scanned Before you rely on it A stranger has to be willing to hold their phone to your hand Many people do not know what a microchip implant is, or how to read one The person who needs help may have to ask for it first They must agree to open a link on their own device Location sharing can be declined, blocked by settings, or simply fail What SupportNet is not Not an emergency service, and not a substitute for calling one Not continuous tracking and not a monitoring service Not a guarantee that anyone will be found or helped Not readable by the implant alone: it always takes a person, a phone and a link Why it was built Within the limits of a passive implant and plain NFC, could there still be some small way to help someone who is lost? That was the question behind SupportNet. Japan's National Police Agency recorded 82,563 missing-person reports in 2024, still a high level after rising from 77,022 in 2020 to 90,144 in 2023. SupportNet is offered as one small, optional bridge, and it promises no outcome. National Police Agency, missing-person reports in 2024 (PDF) It also works as a one-time location note to yourself You can scan your own Spark and send yourself a location entry for that moment: a stop on a trip, a place you want to find again. It is a deliberate, manual action each time, never a background one. GET THE APP Spark Actions Free on iPhone and Android, in Japanese and English. You need a Spark implant for the app to have anything to read; the app is published by VivoKey Technologies. iOS 17 or later SupportNet is a Spark 2 feature Spark 2, the implant itself The app needs a Spark. Spark 2 is the authentication implant sold in Japan by VivoKey Japan, ¥26,620 incl. tax, installed by a partner physician. See Spark 2 -> Get it on the App Store Get it on Google Play Ask about Spark 2 on LINE --- ## https://vivokey.jp/spark2.html PRODUCT / SPARK 2 A cryptographic key, sealed in glass The security-first implant. Spark 2 proves it is genuine through AES mutual authentication, and handles everyday link and profile sharing through the Spark Actions app. SIZE 2.1 × 14 mm INTERFACE NFC Type 4 / ISO14443A LED None PRICE ¥26,620 incl. tax Ask about Spark 2 on LINE Price and how to order BEST FOR One implant that covers both worlds: cryptographic authenticity and Verify API sign-in flows, plus everyday sharing through the app. The keys stay inside the glass. A compatible smartphone with the app powers the implant only for the moment it is held close, and the implant answers a cryptographic challenge that only a genuine Spark 2 can answer. What it does AES mutual authentication: the keys never leave the glass Verify API and JWT workflows for developers Link and profile sharing through the Spark Actions app What it does not do Not for payment. VivoKey Japan does not sell payment-capable implants. Store and transit readers run on networks controlled by the payment operators, and an implant could only pay if those operators chose to support it. No LED. Sharing goes through the app; nothing is written onto the implant itself. VS WRITABLE NFC COMPARE ALL -> Spark 2: proof, not storage Spark 2 answers a cryptographic challenge; there is no readable data on it to copy. The app and the Verify API carry the meaning, not the implant. xSIID: write it yourself A writable chip like xSIID carries the data itself: links, contact details, whatever you write onto it. See xSIID -> PRIVACY A different privacy model from a writable chip Each check runs through VivoKey's Verify API, so a check involves VivoKey's servers, not only your phone and the implant. Spark 2 itself stores no readable personal data, and the Spark Actions app decides what a check shares. How you handle a verified result inside your own system is not something VivoKey or VivoKey Japan involves itself in. SPECIFICATIONS Core platform Secure NFC Type 4 / AES-capable platform in the NTAG 413 / 424 DNA family Radio standard 13.56 MHz, ISO/IEC 14443 Type A Main role Authenticity verification and API-backed identity workflows Size 2.1 × 14 mm, biocompatible glass Technical references Official Verify API docs, JWT docs, and MR Conditional documentation for Spark 2 APPS SPARK ACTIONS AND SUPPORTNET -> Spark Actions app Set an action once, then a tap opens a website, sends an SMS, fills in an email, or shares your profile. Sharing and actions run through the app. Nothing is written onto the implant itself, so what you share stays yours to change. iOS (App Store) / Android (Google Play) What the app can do, and what SupportNet is: the Spark Actions page Verify API, for developers The app talks to the implant, sends the proof to the Verify API, and receives a short-lived signed result (JWT) that your own backend can check. What that result means inside your system stays under your control. It proves that a genuine Spark 2 was present at a specific moment. Official Verify API docs / JWT docs ‹ › MRI AND IMAGING Before an MRI scan Download the manufacturer's MR Conditional statement Full MRI advisory Spark 2 has a ferrite core in its antenna, and it is the one implant here with a formal MR Conditional statement: evaluated at 1.5 T and 3 T, with testing finding no movement or displacement after implantation. A local imaging artifact near the implant is expected, so tell the imaging staff where it is. If a scan is planned, ask on official LINE before the date so the current documentation can be shared in time. The decision on the day belongs to the imaging facility. WARRANTY FULL TERMS -> Spark 2: limited lifetime warranty from the manufacturer, on manufacturing defects. The full terms for every product family are on the terms page . Limited lifetime warranty The manufacturer provides a limited lifetime warranty covering manufacturing defects for the life of the product line: while it is still producing that product and the product is still in stock, a failure caused by a manufacturing defect is replaced free of charge. The replacement is determined by the manufacturer, under its warranty terms and product availability. The fee for removing a faulty unit is the customer's. PRICE AND ORDER TOTAL COST -> IMPLANT PRICE ¥26,620 incl. tax PAYMENT Bank transfer VOUCHER The installation voucher link is sent by official LINE within 24 hours of payment confirmation. INSTALLATION FEE The installation fee is set by your partner physician and paid to them directly on the day. Currently ¥30,000 to ¥35,000 incl. tax for the glass x-series, depending on the partner physician. One implant per order. Under 18: guardian's consent required. See before you order . A partner physician places it. Your installation voucher tells you where to go. Read the acknowledgements, then order and pay by bank transfer. Please make the appointment with your partner physician yourself. Please bring your ID and the voucher on the day. Order on official LINE Before you order See the full process Compare all implants --- ## https://vivokey.jp/terms.html LEGAL Disclosure under the Act on Specified Commercial Transactions This page is VivoKey Japan's disclosure under the Act on Specified Commercial Transactions. On this page, 'installation' means the procedure, performed by a partner physician, of placing the product under the skin. The company profile is on the company page . The seller, prices, payment, delivery, cancellation and warranty terms for every order placed with VivoKey Japan. Ask on official LINE Seller Prices Quantity limits and other conditions of sale Payment method and timing Delivery method and timing Cancellation and returns Warranty Our role, and its limits 1 Seller Company name VivoKey Japan G.K. Representative Ryuuzaki Julio Address 8F Chiba Daiei Building, 1-14-13 Fujimi, Chuo-ku, Chiba City, Chiba 260-0015, Japan Phone Published on the company page . Email Published on the company page . Official LINE https://lin.ee/6AGqRid 2 Prices 2.1 The product price is the amount shown on each product page, including tax. 2.2 Fees other than the product price: the installation fee, and the bank transfer fee when you pay, which you bear. The installation fee is not included in VivoKey Japan's product price and varies by partner physician and product type. Standard installation fees are shown on our partner physicians page . Where a fee is determined individually for the product or installation, we tell you before you order. 2.3 The installation fee is paid directly to the partner physician on the day of installation. VivoKey Japan charges only the product price, and there is no shipping charge for the original order. 3 Quantity limits and other conditions of sale 3.1 One implant per order. 3.2 Under 18, you can order with a parent or guardian's consent. Whether the installation can be done, and on what conditions such as a guardian being present, depends on the partner physician's policy, so please consult us on the official LINE before ordering. 4 Payment method and timing 4.1 Payment method: bank transfer. 4.2 Payment is made in advance. There is no payment deadline. However, if more than 24 hours have passed since we confirmed that stock was available, please check stock with us again on official LINE before making the transfer. Once stock has been reconfirmed, we will hold it for 24 hours. After that period, availability cannot be guaranteed. 4.3 Your order constitutes an offer to purchase. Payment alone does not form the sales contract. The contract is formed when VivoKey Japan accepts your order on official LINE and issues the installation voucher. If we cannot accept your order, we will refund the full amount received. 4.4 The installation fee is paid directly to the partner physician you booked with, on the day of installation. 5 Delivery method and timing 5.1 If we accept your order, we will send you a link via official LINE to issue your installation voucher (QR code). The voucher is used for booking with a partner physician and confirming your order. 5.2 For products in stock, we normally ship the product to the partner physician within 24 hours after issuing the voucher. For made to order products, or any other product that does not follow this schedule, we tell you the expected shipping time before you order. 5.3 Products are not shipped to your home. Shipment to a partner physician does not constitute delivery of the product to you and does not transfer ownership to you. Ownership remains with VivoKey Japan until installation has been completed. 5.4 Peripherals and accessories, such as the KBR1 USB reader, do not require installation. They are shipped to the address you specify, and delivery and transfer of ownership take place on receipt. 5.5 The implant is delivered to you, and ownership transfers to you, when installation by the partner physician has been completed. Products are not shipped or handed directly to customers before installation. 5.6 After the product reaches the partner physician, the timing of installation is arranged between you and the partner physician. Accordingly, the date on which the product is delivered to you depends on the installation date you book. 5.7 The installation voucher has no separate expiration date. Statutory limitation periods and other time limits provided by law still apply. If a long period has passed without use, please contact us when you wish to proceed; we will confirm the storage status of the product and the partner physicians then available. 5.8 If the product you ordered becomes unavailable before installation due to loss, damage, discontinuation or other circumstances, we will offer an alternative product. If you do not wish to accept the alternative, we will refund the product price in full. 6 Cancellation and returns 6.1 If an order is cancelled or refunded, the installation voucher associated with that order becomes invalid. 6.2 If you wish to cancel for your own reasons within 30 days from the date the contract is formed, we will refund the product price. If the product has already been shipped to a partner physician, or the cancellation otherwise causes actual additional costs such as return or forwarding shipping, those actual costs may be deducted from the refund. 6.3 The installation may not be able to proceed with the partner physician you booked, whether because of the attending physician's medical judgment or for other reasons. In that case we will advise you on the options available, including installation by another partner physician. 6.4 If installation ultimately cannot proceed for reasons not attributable to you and the order is cancelled, we refund the product price in full. 6.5 If a partner physician cancels or reschedules, the handling of the installation fee is determined between you and the partner physician. As a general rule, travel, accommodation and other costs of travelling to the installation are borne by the customer. 6.6 Peripherals and accessories, such as the KBR1 USB reader, are brought in from the overseas manufacturer in response to your order. Once your order is confirmed and your payment received, we cannot accept a cancellation or return for a change of mind. 6.7 A product that is faulty, is not the product you ordered, is damaged in transit, or otherwise does not conform to the contract, is handled under the warranty and under the law. The rule on cancellation for a change of mind does not limit that. 6.8 After installation has been completed, returns and refunds for reasons of customer convenience are not accepted, given the nature of the product. This does not affect rights relating to product defects or other rights available under applicable law. 6.9 Cancellations, returns and refunds can involve individual circumstances that these rules do not anticipate. If your situation is one of them, please contact us and we will hear it out and consider what we can do. 7 Warranty The warranty differs by product type, and in every case it is the manufacturer's, not ours. VivoKey Japan does not grant a warranty of its own: a manufacturing defect is covered by the manufacturer's published policy for that product family, on that policy's own terms. What we do is help you reach that process and handle it in Japanese on your behalf. Glass implants (x-series) 7.1.1 Limited lifetime warranty. 7.1.2 The manufacturer provides a limited lifetime warranty covering manufacturing defects for the life of the product line: while it is still producing that product and the product is still in stock, a failure caused by a manufacturing defect is replaced free of charge. 7.1.3 Under the manufacturer's policy, the actual shipping cost on a warranty replacement, including return shipment to the manufacturer, may be charged more than 12 months after delivery. We tell you the amount before shipment. Bioresin implants (Apex Spectrum) 7.2.1 The manufacturer provides a limited lifetime warranty under the same conditions as glass implants. Flex implants (Apex Narrow, Apex Module) 7.3.1 A 1 year limited warranty from the manufacturer. The limited lifetime warranty does not apply. 7.3.2 The manufacturer provides a one year limited warranty. Eligibility is subject to conditions including installation by a professional and video of two specific moments: the device coming out of its pouch onto the sterile field, and the physician placing it by hand without tools. 7.3.3 Under the manufacturer's policy, the actual shipping cost on a warranty replacement, including return shipment to the manufacturer, may be charged more than 6 months after delivery on flex products. We tell you the amount before shipment. 7.3.4 What the manufacturer's warranty covers is free replacement of the device itself. The fee for removing a unit and the installation fee for the replacement are set by the partner physician and are not covered by that warranty. 7.3.5 The manufacturer's warranty and your rights under Japanese law are two separate things. Where a product does not conform to the contract, those statutory rights apply, and we handle such cases in accordance with the law. Magnets (m-series) 7.4.1 The manufacturer provides a limited lifetime warranty under the same conditions as glass implants. Peripherals and accessories 7.5.1 The manufacturer provides a 90 day limited warranty covering proper operation and durability after receipt. A product found defective within 90 days of receipt is replaced. Common to all 7.6.1 The replacement product provided under warranty is determined by the manufacturer in accordance with its warranty terms and product availability. 7.6.2 If you wish to have a product removed for a reason other than a defect, the procedure and its cost are a matter between you and the physician. It is not covered by the manufacturer's warranty. 7.6.3 A replacement under the manufacturer's warranty covers the device itself. The fee for removing the faulty device and the installation fee for the replacement are not included in the warranty and are paid by the customer at the rate set by the partner physician. 7.6.4 If the manufacturer provides a replacement, VivoKey Japan receives it. If you wish to have it installed again, we issue a new installation voucher and send the replacement to a partner physician. 7.6.5 If you do not wish to have the replacement installed again, we can instead modify it free of charge so that it can no longer be used as an implant, and provide it to you in that form. Once modified, the product cannot subsequently be installed in the body. 7.6.6 If shipping costs arise in connection with a replacement, including return shipment to the manufacturer, you may be asked to bear the actual cost. Where that applies, we tell you the amount before shipment. 7.6.7 If a product malfunction is suspected, we may ask to review the condition of the product and information about the installation, and may request recovery and examination of the product if it has been removed, in order to investigate the cause. 7.6.8 The warranty is provided by the manufacturer and is not an additional warranty granted independently by VivoKey Japan. We assist with the claim process and, where necessary, with communication with the manufacturer. 8 Our role, and its limits 8.1 What VivoKey Japan does. We import the product, sell it, ship it to the partner physician, issue your installation voucher and introduce you to the partner physician. The booking itself is between you and the partner physician; we pass their message on to you when they are ready to take your booking. We are the authorized handler for these products in Japan and the point of contact for your order. 8.2 The installation is the partner physician's. Some products are supplied sterile by the manufacturer; others are sterilized by the partner physician before use. Handling on the day, the sterile field and the installation itself are carried out by the partner physician's side, under the physician's own medical judgment. VivoKey Japan is not present and does not direct it. 8.3 The decision is yours and the physician's. Whether an implant is appropriate for you is decided on the day, after the physician has examined you and explained the procedure. The installation goes ahead only once you have heard that and confirmed you want to proceed. 8.4 Medical decisions about the installation, the installation method, infection control and other medical care are carried out under the responsibility of the partner and the physician performing it. VivoKey Japan does not perform the installation and does not make medical decisions or provide medical care in connection with the installation. 8.5 The warranty is the manufacturer's, not ours. VivoKey Japan does not grant a warranty of its own. Manufacturing defects are covered by the manufacturer's published policy for that product family, on that policy's own terms. What we do is help you reach that process and follow it through, in Japanese, on your behalf where that helps. 8.6 If a product delivered to you does not conform to the contract as to its type or quality, VivoKey Japan remains responsible as the seller in accordance with the Civil Code and other applicable laws. This responsibility is separate from the manufacturer's warranty. 8.7 VivoKey Japan imports these products into Japan and therefore falls within the statutory category of a "manufacturer, etc." under the Product Liability Act. Any liability under that Act applies in accordance with its provisions and is not limited by this page. 8.8 The provisions on this page about partner physicians and installation apply to implant products. Peripherals and accessories, which are delivered without installation, are not subject to them. 8.9 Nothing anywhere in these terms removes responsibility that VivoKey Japan is required by law to bear. In particular nothing here limits our liability for intent or gross negligence, and it does not affect any right you have under the Consumer Contract Act, the Product Liability Act or any other mandatory provision of Japanese law. Last revised: September 24, 2026. Ask on official LINE Before you order --- ## https://vivokey.jp/testing.html TESTING What has actually been tested Different implant designs use different encapsulation materials and have undergone different types of testing. Rather than describe every product simply as tested, we show what was actually tested, the conditions used, and what the result establishes. X-SERIES physical testing FLEX two reports, not on an Apex BIORESIN material only Test photographs: Dangerous Things FOUR KINDS OF EVIDENCE Material testing The raw material, before it is made into anything. A certification here belongs to the material, not to a finished implant. Finished-device testing A complete, manufactured implant, tested as the object a person would receive. This is the strongest kind of biological evidence. Manufacturer physical testing Compression, pressure, temperature and similar tests designed by the manufacturer. They show survival under the conditions described, and are not standardized qualification tests. Third-party laboratory testing Testing carried out by an independent laboratory to a published standard, with a report that names the specimen, the method and the result. What VivoKey Japan checks The manufacturer tests the glass implants before they ship. Every unit VivoKey Japan handles then passes four more checks of ours: at the factory, before shipping to Japan, on arrival, and before shipping to the partner physician. One further check is the physician's rather than ours: the implant is read by NFC before the pouch is opened, and the procedure for it is in the installation manual. X-SERIES / BIOGLASS The glass x-series implants have been through a range of physical and environmental tests run by the manufacturer, including compression, pressure, vacuum, extreme temperature and MRI. 500 N Compression Machine maximum reached 1,500 PSI Pressure vessel Ten test pieces, no damage 0.42 mbar Vacuum An xNT, no structural failure Liquid nitrogen Extreme cold Readable afterwards, data unchanged 191°C Heat exposure 30 minutes, still functional EMP Electromagnetic pulse Glass intact, data intact No growth Sterilization check Outside and inside the glass 3 T MRI Conventional x-series only View test details 500 N Compression Result Implants placed inside a silicone tissue analogue, and inside raw chicken, could not be broken before the laboratory compression machine reached its 500 N maximum. Tags were also placed against bone with the same outcome. What this establishes That surrounding soft tissue changes the loading conditions enough that the machine could not reach a breaking point. Where it stops A bare implant placed directly on the metal test plate broke almost immediately. This is not a claim that the glass withstands 500 N directly. Original source Dangerous Things: tests performed on the x-series 1,500 PSI Pressure vessel Result Ten test pieces were placed inside a diving air tank and taken first to 500 PSI, then 900 PSI, then approximately 1,500 PSI. No damage was reported at any stage. What this establishes Survival of those ten pieces at the pressures described. The test was run in response to a question about deep diving. Original source Dangerous Things: tests performed on the x-series 0.42 mbar Vacuum Result An xNT was placed in a laboratory vacuum system and the pressure taken down to 0.42 mbar, without structural failure. What this establishes That this specimen held at that pressure. The specimen was an xNT. Original source Dangerous Things: tests performed on the x-series Liquid nitrogen Extreme cold Result An xNT was immersed in liquid nitrogen, then removed and tested immediately. The glass was intact, the tag could be read with an NFC phone, and the stored data was unchanged. What this establishes Survival of that immersion, structurally and functionally. Original source Dangerous Things: tests performed on the x-series 191°C Heat exposure Result An xIC was placed inside raw chicken and cooked at approximately 191°C (375°F) for 30 minutes. It was read successfully afterwards. What this establishes Survival of that one exposure, at that temperature, for that time. Where it stops This is not an operating temperature specification for the product. Original source Dangerous Things: tests performed on the x-series EMP Electromagnetic pulse Result An xNT was exposed to the electromagnetic pulse of a machine built to launch metal discs. The tag was thrown off the platform; the glass was intact afterwards, it remained readable, and the stored data was unchanged. What this establishes The outcome of that one experiment. Where it stops This is an experiment designed by the manufacturer. It is not a standardized EMC or EMP qualification. Original source Dangerous Things: tests performed on the x-series No growth Sterilization check Result Dangerous Things reports testing both the exterior and the interior of x-series transponders for microbial growth, the interior because there is a small airspace inside the glass. In the published test the plate showed no growth, and only the positive control tube showed growth. What this establishes That this check is part of the manufacturer's sterilization verification work. Where it stops We have not obtained the protocol or the report, so this is the manufacturer's account of its own testing rather than a regulatory sterility certification. Original source Dangerous Things: tests performed on the x-series 3 T MRI Result The formal testing was done on the Spark 2, which is the one implant here with an MR Conditional statement, and that statement writes its conditions out in full. The manufacturer bases its x-series MR card on that testing, because the other x-series transponders are nearly identical apart from the circuit on the silicon die, and the card states up to 3 T with the patient monitored throughout. Separately, a few units were placed in a 7 T machine for a few minutes, with no movement and negligible heating observed. The manufacturer says of that exercise, in its own words, that this is not how MRI testing is done, and when the 7 T figure was raised again in August 2025 Dangerous Things answered that the correct answer is 3 T. What this establishes That the documented condition for the conventional x-series is 3 T, and that it rests on the Spark 2 testing rather than on testing of each model. Where it stops The 7 T exposure is not a tested safety limit and we do not present it as one. Magnetic implants such as the xG3 and Titan are a separate category, and the manufacturer says they must be removed before an MRI. Apex and the other flex products have no MRI testing and no MR card of any kind. Original source Dangerous Things: the manufacturer's own clarification of the 7 T figure The range of these results These results apply to the specimens and conditions described in the original tests. They are not a certification that every x-series model will withstand every possible environment. Sources Dangerous Things: tests performed on the x-series Dangerous Things: the manufacturer's own clarification of the 7 T figure Dangerous Things: staff confirm the correct figure is 3 T VivoKey: Spark 2 MR Conditional statement FLEX / VIVOKEY BIOPOLYMER One finished implant made with VivoKey biopolymer has been through independent ISO 10993 laboratory testing, covering cytotoxicity and intracutaneous reactivity. The report names that implant as a Walletmor payment implant, not an Apex. The finished Apex has not been through any certified, official or third-party testing. Laboratory KONMEX sp. z o.o. Location Józefów, Poland Test specimen Walletmor Payment Implant with Vivokey biopolymer Customer on the report Walletmor LTD, London Grade 0 Cytotoxicity Non-cytotoxic 0.00 Intracutaneous reactivity Primary Irritation Index View test details Grade 0 Cytotoxicity Standard ISO 10993-5:2009 / ISO 10993-12:2021 Study 21-45-1 Method Qualitative in vitro cytotoxicity MEM elution assay. An extract of the finished device was tested against L929 cells. Result Blank grade 0, negative control grade 0, positive control grade 4, test item grade 0, recorded in the report as no cytotoxic potential. What this establishes That this finished test item should be considered non-cytotoxic, in the laboratory's own words. Original source KONMEX study 21-45-1: cytotoxicity report 0.00 Intracutaneous reactivity Standard ISO 10993-10:2010 / ISO 10993-12:2012 Study 21-45-2 Method A polar extract in sterile saline and a non-polar extract in cottonseed oil, applied intracutaneously in three New Zealand rabbits and assessed at 24, 48 and 72 hours. Result A Primary Irritation Index of 0.00 for both extracts. The laboratory concluded that the test item met the requirements of the test. What this establishes That this finished test item met the requirements of that test under those conditions. Original source KONMEX study 21-45-2: intracutaneous reactivity report The material itself The manufacturer describes the custom VivoKey biopolymer as ISO 10993 and USP Class VI tested and certified. We state that as the manufacturer's description, because we have not obtained the underlying material certificate and cannot say which ISO 10993 endpoints it covers. Mechanical testing The manufacturer has also run its own in-house mechanical testing on flex devices, and publishes video of it. Publicly available documentation does not give a standardized bend-cycle count or a fatigue-life figure, so we do not state one. There is also a manufacturer safety advisory describing an unusual number of failures in implants installed along the knife edge of the hand, with repeated flexing as the working hypothesis. Placement in areas subject to repeated flexion is therefore avoided. What the reports name The published laboratory reports identify the tested specimen specifically as a Walletmor Payment Implant manufactured with VivoKey biopolymer. These results are evidence for that finished device only. They are not testing of the finished Apex, or of any other flex model or electronic configuration. Beyond these two reports, what Dangerous Things publishes about flex implants is the manufacturer's own in-house testing, done in its own lab: real testing, and the manufacturer's, but not official, certified or third-party. Sources Dangerous Things: tests performed on flex implants KONMEX study 21-45-1: cytotoxicity report KONMEX study 21-45-2: intracutaneous reactivity report Dangerous Things: safety advisory for flex installations Dangerous Things: knife-edge installations of flex implants BIORESIN The bioresin used by Dangerous Things is made from USP Class VI certified material. The manufacturer's current documentation keeps that material certification separate from testing of the final processed implant. USP Class VI Material The resin as supplied carries USP Class VI certification. Processing Manufacturing The resin is then processed into a finished implant. Processing can change material properties. Not established Finished device The manufacturer's current product documentation states that the final bioresin product has not been tested after processing. We have not found an equivalent finished-device biocompatibility report, so we do not claim one. Material is not the finished device Certification of the original resin should not be treated as certification of the completed implant. If a finished-device report is published later, this page changes. Sources Dangerous Things: dT5 product documentation HOW TO READ THIS What do these results mean? No single laboratory or physical test establishes safety under every possible condition. Test results apply to the specimen, method and conditions used in that test. For this reason, VivoKey Japan distinguishes between material certification, finished-device laboratory testing and practical physical testing, instead of describing all of them simply as tested. Safety and FAQ What implants are Medical device status --- ## https://vivokey.jp/xsiid.html PRODUCT / XSIID Write it yourself. It answers in light The sharing-first implant. Writable NFC memory for your links and contact details, plus an LED that lights when a compatible smartphone or reader powers it. SIZE 2.1 × 15 mm INTERFACE NFC Type 2 (writable) LED Red / White PRICE ¥29,480 incl. tax Ask about xSIID on LINE Price and how to order LED COLORS Red Available White Available Blue Sold out / discontinued Green Sold out / discontinued Red White The LED is powered by the reader's own field, and only while it is being read; there is no battery. The blue and green xSIID are sold out and discontinued worldwide. If you want a green or blue LED, that is NExT v2 . BEST FOR Profile sharing, contact cards, personal links, automation triggers, and anyone who wants a red or white LED. What it does Writable NFC that works with compatible smartphones An LED powered by the reader's own field, no battery Red or white LED, both available from Japan What it does not do Not for payment. VivoKey Japan does not sell payment-capable implants. Store and transit readers run on networks controlled by the payment operators, and an implant could only pay if those operators chose to support it. Not the same thing as Spark 2 authentication, and not a high-assurance credential by itself Anything written to it can be read by any nearby NFC reader; do not write anything you would not want a stranger to see Blue and green LEDs are sold out and discontinued; red and white are the colors available today Looking for stronger authentication instead of writable sharing? See Spark 2 . Thinking about a door lock or badge reader? Start with the reader, not the implant: see access and DIY . SPECIFICATIONS Core chip NXP NTAG I2C Plus 2K (1912 bytes user memory; about 868 bytes reachable from a phone) Radio standard 13.56 MHz NFC Forum Type 2 LED Red or white, powered by the NFC field Size 2.1 × 15 mm, biocompatible glass Main use Writable NFC sharing, links, contact data, and shortcuts Datasheet NXP NTAG I2C Plus APPS SIDEN VivoKey Japan's companion app for xSIID and NExT v2 owners. Write and rewrite what the implant holds from your phone: a URL, a contact card, or a shortcut trigger. It can be empty on installation day and written whenever you like. SIDEN on the App Store -> ‹ › SHARE YOUR LINKS ABOUT CHILI -> ChiLi 🌶️ your links, on your chip Tap your implant, show your links. No app, no account, nothing stored on a server. See how it works -> Make yours in a minute Fill in your name and links, pick a color and a background, and write the link to your chip from your phone. Make yours -> MRI AND IMAGING Before an MRI scan Full MRI advisory Every x-series implant, xSIID included, has a small ferrite rod core in its antenna. Dangerous Things, as the manufacturer, designates them MR Conditional and publishes an x-series MR advisory: up to 3 T, with the patient monitored throughout and the scan stopped at once if anything is felt. Before a scan, ask us on official LINE for the manufacturer's advisory to share with the imaging facility, and the facility makes the final call. Expect a local artifact, and tell the imaging staff where it is. WARRANTY FULL TERMS -> xSIID: limited lifetime warranty from the manufacturer, on manufacturing defects. The full terms for every product family are on the terms page . Limited lifetime warranty The manufacturer provides a limited lifetime warranty covering manufacturing defects for the life of the product line: while it is still producing that product and the product is still in stock, a failure caused by a manufacturing defect is replaced free of charge. The replacement is determined by the manufacturer, under its warranty terms and product availability. The fee for removing a faulty unit is the customer's. PRICE AND ORDER TOTAL COST -> IMPLANT PRICE ¥29,480 incl. tax PAYMENT Bank transfer VOUCHER The installation voucher link is sent by official LINE within 24 hours of payment confirmation. INSTALLATION FEE The installation fee is set by your partner physician and paid to them directly on the day. Currently ¥30,000 to ¥35,000 incl. tax for the glass x-series, depending on the partner physician. One implant per order. Under 18: guardian's consent required. See before you order . A partner physician places it. Your installation voucher tells you where to go. Order on official LINE Before you order See the full process Compare all implants