Hardware Security Key Review: YubiKey vs Google Titan vs OnlyKey

✍️ 安全栏目🕒 March 24, 2026📖 7 min read

We test three leading hardware security keys for FIDO2/U2F support, durability, price, and usability, helping you pick the best one for phishing protection.

FIDO2/U2F Support

All three support FIDO2 and U2F, compatible with 300+ sites. YubiKey 5 adds TOTP, smart card, OpenPGP; Google Titan does FIDO2/U2F only; OnlyKey supports FIDO2 plus TOTP and static passwords.

Connectivity & Portability

YubiKey: USB‑A, USB‑C, NFC—many options
Google Titan: USB‑A+NFC, USB‑C+NFC—no USB‑C only
OnlyKey: USB‑A only, larger but has rechargeable battery for OTP/static passwords

Durability

YubiKey 5 series: IP68, washable; Google Titan: IP67; OnlyKey: metal body, waterproof not specified.

Price

YubiKey 5 NFC: $55; Security Key C NFC: $29
Google Titan: $35 (USB‑A+NFC), $40 (USB‑C+NFC)
OnlyKey: $49 (Crowd Supply)

Scores & Recommendations

YubiKey: 9.5 — Most features, ecosystem; Google Titan: 8.5 — Best value; OnlyKey: 8.8 — Advanced users.

💡

For most users: Google Titan or YubiKey Security Key. For advanced needs (TOTP, OpenPGP): YubiKey 5. For techies who want static passwords and offline OTP: OnlyKey.

Backup Strategy

Buy at least two keys. Register both to your accounts to avoid lockout.