Yubico YubiKey 5Ci vs. Thetis FIDO2

Which one is better in 2025? In-depth comparison of Yubico YubiKey 5Ci and Thetis FIDO2

Yubico YubiKey 5Ci and Thetis FIDO2 are two popular security keys with different costs, ease of use, and compatibility.

We've compared Yubico YubiKey 5Ci head-to-head with Thetis FIDO2 to help you decide which is best for your needs.

	Select a product	Select a product
	Yubico YubiKey 5Ci ₹7,249 Save ₹1,000 2	Thetis FIDO2 ₹2,449 Save ₹1,000
Warranty	1 year	—
Connectors	Lightning USB-C	USB-A
Features	Fido U2F OpenPGP	Fido U2F
Compatible With	Android Linux Windows iOS macOS	Android Linux Windows iOS macOS
Desktop	Yubico Authenticator	—
iOS	Yubico Authenticator	—
Android	Yubico Authenticator	—