Why Do Smartphones Heat Up When You Use Them?

Smartphones get hot because they're working hard. When you watch videos, play games, or take pictures, the phone’s brain, called a processor, is busy doing lots of calculations. Just like when you run around and feel warm, your phone gets warm too. The more it works, the hotter it gets. Sometimes, even your phone's battery can get hot if it has to charge quickly.

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Examples

  1. When you play a game for a long time, your phone gets warm like after running around outside.
  2. Your phone feels hot when it's charging and you're watching a video at the same time.
  3. If you take many pictures quickly, the camera part of your phone can get very warm.

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