[T]he facial scanner in the iPhone X is based on the technology that Microsoft first used, disastrously, in its Xbox Kinect sensor. This probably exp… - Paul Thurrott

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[T]he facial scanner in the iPhone X is based on the technology that Microsoft first used, disastrously, in its Xbox Kinect sensor. This probably explains why [Apple's Face ID] works so poorly: If Microsoft could never perfect this in a relatively huge device, how could Apple's component makers ever fit the technology into 'a space a few centimeters across and millimeters deep'?