Before now, if you wanted to send money via Google Pay you would be asked to use an old school PIN pattern to authenticate the transfer. Starting with version 2.100, the service is finally getting support for fingerprints and face authentication for money transfers thanks to Android 10’s biometric API.
At present, the feature is only available for Android 10 devices and can be found in the Sending money settings section of the app.
Earlier, you were only limited to using your Google Account Pin but now can switch to biometric authentication instead. Google’s own Pixel 4 lineup relies on facial unlock for authentication so this new addition will certainly be useful for owners of that one.