Smartphones use a special kind of camera and clever software to know when you're looking at them. It’s like how your eyes follow something that moves, the phone notices where your eyes are focused, and it knows if you’re really paying attention or just holding it in your hand.
Examples
- Your phone lights up when you look at it, even if you’re not touching it.
- You're watching a video, and your phone knows exactly where you're focusing on the screen.
- When you're typing, your phone can tell if you're looking down or away.
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See also
- How Do Touchscreens Actually Work?
- How Do Smartphones Know You're Taking a Photo?
- Why Do Phones Automatically Rotate When You Turn Them?
- Why Do Smartphones Automatically Adjust to Light?
- How Do Smartphones Know When You're Tired?
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Categories: Technology · smartphone· sensor technology· machine learning· eye tracking· user interface