# Passkey
> A passkey lets you sign in with device security like fingerprint, face unlock, or screen lock instead of a password.
Topics: Apps, Security
Difficulty: Everyday
Aliases: passwordless login
Updated: 2026-06-26T08:00:00.000Z
## Go deeper
A passkey lets you sign in with device security like fingerprint, face unlock, or screen lock instead of a password. In everyday buying decisions, the useful question is not just what the spec says, but what it changes for comfort, cost, speed, safety, or battery life.