Why Do Some Phones Heat Up So Much?

Phones get hot when they work hard, like playing games, watching videos, or charging. Inside the phone are tiny parts called batteries and processors, which act like workers doing all the heavy lifting. When these workers are busy, they make a lot of heat, just like how your body gets warm when you run around. If there’s not enough space for that heat to escape, the phone feels hot, almost like it has a fever!