– How does an iPhone detect your face in Face ID in the dark, but doesn’t let you see a thing on the Camera app when it’s dark?

Question

– How does an iPhone detect your face in Face ID in the dark, but doesn’t let you see a thing on the Camera app when it’s dark?

In: 0

Answer 1

It uses infrared, which humans don’t see. Since it doesn’t generate visible light, there’s nothing to show.

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