Why not both, though. Touch ID for the 80% of cases where it works and then is faster than Face ID, because by the time the phone is in front of your face it’s

Why not both, though. Touch ID for the 80% of cases where it works and then is faster than Face ID, because by the time the phone is in front of your face it’s already unlocked, and Face ID for the remaining cases where Touch ID fails. If you can include three cameras, surely you can include two biometric sensors.