Compare up to 10 devices across categories. Keep the purpose and the source beside the numbers.
676 models available. Showing nine - search to narrow the list.
Lowest recorded store prices take priority over announced or launch prices, within the selected source market. Currencies use the dated EUR reference rates. Deposits and recurring charges are excluded from price order; missing prices stay last. Original price records remain visible.
NFC data sharing and supported access control
Keep in mind Manufacturer explicitly says no government certification for implantation. Header, description and detailed specs differ on accessible memory; both hardware and app limits are disclosed.
Experimental implanted electronic identification or secure-element hardware
Keep in mind Manufacturer states its finished implants are not government-certified for implantation or use inside the human body.
Published specifications and documented constraints. See the full comparison below for prices and sources.
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| Frontier & researchAdd a model |  |  |
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| Prices · all markets | €109.95 EUR≈ $123 USDECB 2026-10-13Lithuania-facing store · Store price · In stock in official structured offer 1 offer records & sources€109.95 EUR≈ $123 USDECB 2026-10-13 Lithuania-facing store · Store price In stock in official structured offerDangerous Things xSIID NFC + LED Implant, injector kit Includes VAT; professional installation cost separate. Not government certified for implantation.Check merchant offer ↗Price source ↗ Checked 2026-10-12 | $349 USD≈ €312 EURECB 2026-10-13US · Store price · Stock and delivery not verified 1 offer records & sources$349 USD≈ €312 EURECB 2026-10-13 US · Store price Stock and delivery not verifiedVivoKey VivoKey Apex Flex hardware Manufacturer US product price for the implant configuration without reader/programmer add-ons. Professional placement cost not included.Check merchant offer ↗Price source ↗ Checked 2026-10-12 |
| Designed for | NFC data sharing and supported access control ↗ | Experimental implanted electronic identification or secure-element hardware ↗ |
| Form factor | 2.1 × 15 mm bioglass implant ↗ | Subdermal electronic transponder ↗ |
| Sensors | None ↗ | Not verified |
| Power & output | Passive field-powered LED ↗ | Not verified |
| Radio | 13.56 MHz ISO14443A / NFC Type 2 ↗ | Not applicable to this category |
| Chip | NTAG I2C ↗ | Not applicable to this category |
| Memory | 1912 bytes chip memory; typical app support 888 writable bytes ↗ | Not applicable to this category |
| Payment | Not supported ↗ | Not supported by Apex Flex ↗ |
| Installation | Sterile injector supplied ↗ | Not applicable to this category |
| Chip Platform | Not applicable to this category | JCOP4 / Java Card3.0.5 ↗ |
| Application Memory | Not applicable to this category | 83,872 bytes EEPROM ↗ |
| Cryptography | Not applicable to this category | RSA, ECC, AES and3DES applets ↗ |
| Software Provisioning | Not applicable to this category | Fidesmo applet deployment ↗ |
| Dimensions | Not applicable to this category | Narrow8x28 mm; Module14x35 mm; Spectrum22x1.9 mm disc; one family profile ↗ |
| Construction | Not applicable to this category | Flexible biopolymer encapsulation ↗ |
| Availability | Manufacturer explicitly says no government certification for implantation. Header, description and detailed specs differ on accessible memory; both hardware and app limits are disclosed. | Manufacturer US product price for the implant configuration without reader/programmer add-ons. Professional placement cost not included. |
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| Editorial pick & release | No editorial ranking recorded | No editorial ranking recorded |
| Evidence | Manufacturer source Checked 2026-10-12 | Manufacturer source Checked 2026-10-13 |
Battery claims use different conditions and are not a controlled benchmark. “Not verified” is an evidence gap, not a missing feature. Prices are dated regional snapshots. Deposits, bundles and historical launch prices are labelled. Brightness measurement methods and battery workloads vary by manufacturer.
