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A comment on First field report of iPhone X. Parent comment

Re:First field report of iPhone X by otoburb on Monday October 30, 2017 @02:10PM (#15587425)
"Face ID works by projecting more than 30,000 infrared dots onto a face and producing a 3D facial map."[1]

[1] https://en.wikipedia.org/wiki/Face_ID

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