Solo 2 vs YubiKey 5 Series
| Solo 2 | YubiKey 5 Series | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | No |
| Paid from | — | — |
| Open source | No | No |
| Platforms | Windows, macOS, Linux, iOS, Android | Android, iOS, Linux, macOS, Web, Windows |
| Free plan | No | No |
| Paid from | 34 one-time | 58 one-time |
| Authentication standards | FIDO2, WebAuthn, U2F | FIDO2/WebAuthn, FIDO U2F, Yubico OTP, OATH-TOTP, OATH-HOTP, PIV smart card, OpenPGP |
| NFC support | No | Yes |
| Device management | none | vendor app |
| Operating systems | Windows, macOS, Linux, Android | Windows, macOS, Linux, iOS, Android, ChromeOS |
| Biometric unlock | — | No |
| USB connector | — | usb-a |
Both are listed in Best Security Keys. On Samsung Mobile US Press, YubiKey 5 Series scores higher on our published basis.