Especially the really small ones on the side.
In: 316
They work by bouncing ultrasonic waves off your finger to an internal receiver to create a map of your fingerprint, similar to how an ultrasound scan looks during a medical procedure. It can then compare this scanned finger with anyone’s finger using the scanner.
Edit: it’d be much easier to imagine it as a kind of camera that takes a picture of the fingerprint.
Latest Answers