Why Do Smartphones Stay Cool Even When They’re Hard at Work?

Smartphones have a special kind of heat shield inside them that works like a thermometer, keeping everything cool. When your phone gets hot, it sends signals to its fan or cooling system to lower the temperature and protect the phone from overheating. It's like how you feel cooler when there is a breeze on a hot day.

Take the quiz →

Examples

  1. Smartphones can feel warm under your hand, but they don’t get hot like a stove because of their heat shield.
  2. Just like you cool down when there's a breeze, your phone uses its cooling system to stay comfortable while working hard.
  3. When your phone is playing a game, it sends messages to its fan or cooling device so it doesn’t overheat.

Ask a question

See also

Discussion

Recent activity