How to set up face unlock on Pixel 4 and 4 XL: Pixel 4 and 4 XL added new features such as super fast face recognition, Motion sense, 90 Hz refresh rate, customize Pixel 4 icon style & wallpaper and more. You can set up and use face unlock on Pixel 4 XL using security settings. Google removed fingerprint security from Pixel 4 and 4 XL devices.
Step 1: Swipe up from bottom of the screen to access app drawer in Pixel 4 & 4 XL.
Step 2: Scroll down and tap on Security.
Step 3: Tap on Face unlock.
Step 4: Tap on Next at bottom right corner.
Step 5: Tap on Start at bottom right corner.
You can see the rounded circle on your screen.
Step 6: Rotate your head, capture all angles of your face by removing all the tiles. Hold phone still complete the process.
Step 7: Tap Done at bottom right.
Step 8: Locked your phone and just pick and you can see super fast unlock your Pixel 4 and 4 XL.