SAEDNEWS: Smartphones can become warm during extended use because their processors, batteries, and other internal components work harder. Activities such as gaming, video streaming, multitasking, and using demanding applications can increase heat production, especially when ventilation is limited.
According to SAEDNEWS, the main reason a phone heats up during prolonged use is increased processor activity. Running demanding applications, games, or several tasks at once requires more processing power, which naturally produces additional heat.
The battery also contributes to heat generation. Long periods of intensive use require the battery to deliver energy continuously, causing its temperature to rise. Charging the phone while using demanding applications can make the device warmer.
A bright display can increase energy consumption, particularly during extended use. Mobile data, Wi-Fi, Bluetooth, and location services can also require continuous activity, adding to the phone's overall workload and heat.

The surrounding environment can affect phone temperature. Using a phone under a blanket, on a soft surface, or in a warm room can prevent heat from escaping efficiently. A protective case may also reduce heat dissipation in some situations.
Reducing screen brightness, closing unnecessary applications, taking breaks from demanding tasks, and avoiding intensive use while charging can help control temperature. Keeping the phone in a cool, well-ventilated place also allows heat to escape more effectively.