Security Key Comparison
The key models from five brands, compared
Compare all five brands carried by YubiOn — YubiKey · iShield Key 2 · Idem Key · ATKey · VinCSS — across protocols, connectors, and use cases. Everything you need to choose the right key, in one table.
Overview
Built on FIDO2, differentiated by brand.
All five brands support FIDO2 / WebAuthn and form the foundation of passkey authentication. They differ in protocol breadth, certification level, physical durability, and connector mix. The right choice depends on your operating environment and requirements.
Compare models
Compare security keys
Compare popular security keys at a glance across a focused set of features. You can also switch to a detailed two-model comparison.
 YubiKey 5 Series |  Idem Key |  iShield Key 2 Pro |  YubiKey Bio Series |  ATKey.Pro |  VinCSS FIDO2 Fingerprint |  VinCSS FIDO2 Touch 1 | iShield Key 2 FIDO2 | |
|---|---|---|---|---|---|---|---|---|
| Multi-function models | FIDO-only models | |||||||
| FIDO | ||||||||
| Biometric | Not supported | Not supported | Not supported | Not supported | Not supported | |||
| PIV | Plus / Pro only | Not supported | Not supported | Not supported | Not supported | Not supported | ||
| OTP | Yubico OTP · TOTP · HOTP | HOTP on Pro models only | TOTP · HOTP supported | Not supported | Not supported | Not supported | Not supported | Not supported |
| USB | USB-A / C | USB-A / C | USB-A / C | USB-A / C | USB-A / C | USB-C | USB-A | USB-A / C |
| NFC | Not supported | Not supported | Not supported | |||||
| BLE | Not supported | Not supported | Not supported | Not supported | Not supported | Not supported | Not supported | |
| Best for | Want one key that does everything | Multi-function on a budget | Need a high-trust multi-function key | Want passwordless with a fingerprint | Prefer simple fingerprint auth | Want biometrics plus NFC / BLE | Simple, low-cost mass deployment | Want simple FIDO2 over NFC / USB |
| Maker |  |  |  | |  |  | | |
| Details | Details | Details | Details | Details | Details | Details | Details | |
Unless noted, each USB interface is a separate product.
All products above are FIDO2 certified.
By use case
Recommended by organization type
Where each brand fits best by industry, regulation, and operating environment.
YubiKey
Multi-protocol needs · global enterprise
Covers FIDO2 plus OTP, PIV, and OpenPGP in a single key. Ideal for unifying authentication across global offices and legacy systems.
iShield Key 2
Finance, government — highest certification
FIPS 140-3 Level 3 certified (FIPS models), up to 300 passkeys. German manufacturing for high trust, NFC across the entire lineup.
Idem Key
Field, outdoor (healthcare, factory, logistics)
First USB/NFC security key to achieve FIDO2 Level 2 certification. IP68 waterproof and 6,150 lb crush-resistant for tough field environments. NFC for both iPhone and Android.
ATKey
Maximizing usability with biometrics
Side-mounted fingerprint sensor authenticates from any angle in under a second. One-touch, no PIN. Biometric data stays on the key.
VinCSS
Cost-optimized large-scale deployment
Two product lines — battery-free Touch 1 and biometric + NFC + BLE + USB-C Fingerprint. Approachable pricing for backup keys and biometric needs.
Brand profiles
Each brand at a glance
The makers behind each key, and how YubiOn carries them. See full specifications and purchasing on each brand's product page.
YubiKey
The flagship from the maker that drives FIDO standards. Multi-protocol coverage adopted by enterprises worldwide. YubiOn is Japan's first Gold Partner, with the full lineup in stock.
- FIDO2 / OTP / PIV / OpenPGP in one key
- Deployed at scale by Google, Microsoft, and others
- Rich form factors: Bio, Nano, 5Ci, and more
iShield Key 2
A Swiss maker of industrial storage and security products. With FIPS 140-3 Level 3 models available, it's the high-trust choice for regulated industries.
- Stores up to 300 passkeys
- FIPS 140-3 Level 3 model available
- NFC across all models, made in Germany
Idem Key
The first USB/NFC security key to be FIDO2 Level 2 certified. IP68 waterproof and 6,150 lb crush-resistant — built for outdoor and harsh environments.
- FIDO2 Level 2 (first USB/NFC key)
- FIPS 140-2 Level 3 (secure element) / IP68
- NFC for both iPhone and Android
ATKey
A specialist in fingerprint FIDO2 keys. The side-mounted sensor enables one-touch authentication. Biometric data stays on the key.
- One-touch fingerprint, no PIN
- Biometric data stays on the key
- Driver-free, FIDO2 / CTAP2.1
VinCSS FIDO2
An authentication-tech maker under Vietnam's Vingroup. Two lines — battery-free Touch 1 and biometric + NFC + BLE + USB-C Fingerprint — cover a wide range of needs.
- Touch 1: battery-free, simple
- Fingerprint: biometric + NFC + BLE + USB-C
- Approachable pricing for volume deployments
Need Help Choosing
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