Welcome to Tech Talk, your weekly resource for understanding the technology we engage with daily. Whether you’re a tech enthusiast or simply curious about the workings of your smartphone, we aim to simplify it all for you.

An explanation of how technology functions, accessible for all. Your weekly dive into what drives your devices.
What Causes My Phone to Overheat?
Have you ever felt your phone getting warm after extended gaming or watching videos? This is a frequent occurrence, and although it might be alarming, there’s often a reasonable explanation behind it. Let’s take a closer look at what happens within your device when it starts to feel like a mini oven.
Heat as a Byproduct of Energy Use
Your phone contains a compact yet powerful processor — similar to those found in computers but smaller and more efficient. These processors can operate at temperatures higher than 75°C (167°F) during intense usage. That heat has to be dissipated somehow.
When you’re gaming, streaming, or even running a poorly designed app, the processor is pushed to its limits. This increased workload produces heat, which explains why your phone might become warm or even hot.
The Importance of Managing Heat
Heat isn’t merely uncomfortable; it can also be detrimental. Excessive temperatures can:
- Shorten your battery’s lifespan
- Reduce performance (a phenomenon known as thermal throttling)
- Harm internal components if not properly regulated
How Devices Regulate Temperature
Manufacturers implement various strategies to control heat:
- Heat pipes and thermal paste: These elements help transfer heat away from the processor to other sections of the phone.
- Throttling: When temperatures become too high, the phone reduces the processor’s speed to cool down.
- Shutdown protocols: In serious situations, your device may shut down to avert damage.

Common Causes of Heating
Numerous everyday activities can lead to your phone overheating:
- Gaming or streaming videos: Such tasks place significant demands on your processor and graphics chip.
- Charging: Particularly during fast charging, your battery may heat up considerably.