Smartphones can tell when you're looking at them using a special sensor that works like a tiny camera. It takes many small pictures quickly and figures out where your eyes are pointing, just like how you guess someone is looking at you by seeing their eyes move.
Examples
- Your phone turns off the screen when you look away during a video call.
- It knows when your eyes are focused on the center of the screen for reading.
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See also
- How Do Smartphones Know When You're Looking at the Screen?
- How Do Phones Know When You're Looking at Them?
- How Do Touchscreens Know Where You Tap?
- Why Do Phones Know When to Vibrate?
- Why Do Phones Automatically Brighten in Sunlight?
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Categories: Technology · smartphone technology· sensors· eye tracking· user experience· mobile devices