What is biometric unlock?

Biometric unlock lets you use your device's fingerprint or face recognition to quickly access the Vault, without entering your Vault Password each time.
Biometric data (Biometrics) is stored securely in your device's hardware and is never uploaded to any server.
Biometrics supplement — but do not replace — your Vault Password. After reinstalling the app or resetting your device, you will need to enter your password again.
This can be enabled or disabled at any time in Vault Settings.