6 ms·Fingerprint auth is a lot faster because it's already unlocked before I look at the phone.by fomine3 6y agoFingerprint auth is a lot faster because it's already unlocked before I look at the phone.hhjinks 6y agoYou can't USE your phone before you look at it, so the effective difference is the half second it takes for face id to unlock your phone.fomine3 6y agoYes it's not huge difference so not a deal-breaker but the slight difference is detectable.