Originally Posted by Elysian
Wow that kind of sucks. Wouldn't have guessed the Pixels lacked something I basically rely on.
I edited my original post before I noticed that you had replied. It appears that the Pixel 2 phones had limited face unlock functionality. It was part of the Smart Lock feature and would only work for four hours after unlocking with a PIN, pattern, password or fingerprint. I am not sure about the original Pixel, the Pixel 3 series, or the Pixel 5.