This is an inaccurate test, in fact it's stupid, we're talking milliseconds her, you can't just start and stop a stopwatch judging by the eye, this alone would take a few milliseconds for your eye to receive an image and your brain to process it and give the order to your hand to start a stopwatch and your hand to execute, too many variables were left uncontrolled, for example the position of the phone and the angle, the power button when it's pressed, and whether the phone starts the identification before or after illuminating the screen and so on