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How to use Pixel 4's Face Unlock and Motion Sense features (bye, fingerprint scanners!) Google ditched the fingerprint sensor, but you can unlock your Pixel 4 with your face instead.
To unlock your device using facial recognition, simply raise your device to wake it up and look at the screen. The device will automatically recognise your face and unlock it.
Follow your phone’s face set up instructions while holding the mask in place, and once complete you should be able to unlock your phone with your mask on.