A knowledge base article about How to set up Face ID security on your cell phone provided by the UC Berkeley IT Service Hub - Knowledge Portal
To setup Face ID on an Android Device:
Once the face scan is accepted, your device will automatically unlock when you look at the screen, but only if the device recognizes your face. Appearance changes such as heavy makeup or glasses can cause Face ID to not work properly.
On an iPhone device, for extra security, you can also enable the feature that erases all data on the device after 10 failed passcode attempts. This option isn’t a good fit for everyone; please consider carefully before enabling it:
Questions? Send email to wireless@berkeley.edu