There are two biometric options for the owner. The first is a fingerprint reader in the side button. The second is a facial recognition. With the fingerprint reader, once you set it up, your hand will naturally place the thumb on the fingerprint reader, and will authenticate immediately. However, if you don’t wish to use the fingerprint reader, then the facial recognition will be your next biometric option.
Facial recognition will require that your eyes are open and moving. There is a dot projection and an IR camera that would read the angles and depth of your face to build a biometric map of your face. Since your eye must be open and moving, pictures or even head sculptures will not work since there is no option for moving parts that might be able to trick the system. This will provide for a top rated security, and no special action on your part for either biometric.