From my exp clean fingerprints on undamaged fingers work 99% of the time, with facial recognition there are so many variables, espeacially light with they had to add a illuminator for it to work in the dark .. blasting your eyes with light at night is going to be unpleasant
RE: iPhone X: Are you tempted or scared?
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iPhone X: Are you tempted or scared?
Maybe you didn't get the context properly. There no light involved in the dark. It's an infrared ray, used in night vision cameras.
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Even though they are using infared There is a light flash involved.. they added foward facing light to the front of the phone for to aid the face scanner
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