Laatste update: 21 juli 2026

iPhone gets hot: these are the causes and how to solve it

iPhone getting hot? Don't panic - here's what you need to know

Your iPhone is getting hot. Sometimes even scorching hot. Panic sets in: is it going to break? But wait. Most damage is not caused by the heat itself, but by what you do next. While everyone thinks a hot iPhone will be damaged immediately, it's actually the panic actions that cause real problems.

Putting it in the fridge, holding it under cold running water, or improperly shutting down your device during important processes – that's what breaks your phone. The truth? Your iPhone has built-in protection against overheating and will shut itself off before permanent damage occurs.

How should you react? It's surprisingly simple. In this article, you'll learn the real causes of a hot iPhone and discover how to safely resolve this and prevent it in the future.

Quick fix or addressing a structural problem?


When does heat become a problem?

A warm iPhone isn't immediately a disaster. Apple designs these devices to handle temperatures up to 35 degrees Celsius without problems. Only above that does the internal temperature protection start to kick in. When streaming videos, playing heavy games, or installing a major iOS update, the processor is working at full power, which naturally generates heat.

Unsure if the heat is harmful? Use this check:

Situation Characteristics What to do?
Normal warmth Device feels warm, but all apps and functions (like the camera) are still working smoothly. Nothing. Let the device do its work.
Overheating Screen dims, flash doesn't work, slow reactions, or a thermometer warning screen. Stop using and let it cool down safely.

The most common causes

Both external factors and processes within your phone play a role. Pay particular attention to these culprits:

  • External heat: Leaving your phone on the dashboard of your car (where it can reach >70 degrees) or directly in the summer sun on the beach. Black and thick cases further insulate this heat.
  • Internal wear: An aging battery has to work much harder for the same performance, which directly generates extra heat.
  • Heavy background processes: Automatic iCloud backups, photo synchronization, or apps constantly requesting your location without you noticing.

Common user errors

The absolute number one mistake? Charging during intensive use. Navigating (GPS + bright screen + mobile data) while your device is charging and in the sun literally turns your iPhone into a small heater. Using counterfeit chargers also often leads to unstable power supply, causing the battery to overload.


Safe cooling methods (and what you should never do)

Please note: Never put your iPhone in the refrigerator or freezer. Rapid temperature changes cause condensation inside. Moisture damage is permanent, heat damage can be resolved by the device itself!

Here's how to safely cool down your iPhone:

  1. Remove the device from its case.
  2. Place it on a cool, flat surface in the shade (e.g., a stone floor or metal table).
  3. Put it in Airplane Mode or turn it off completely.
  4. Wait calmly for 10 to 15 minutes.

Emergency measures in the car

Can't stop navigating? At least remove your device from the charger. Dim your screen, point the air conditioning at the holder, and use offline downloaded maps so your 4G/5G antenna doesn't have to work as hard.


Preventative measures for a cool iPhone

Prevention is better than cure. With a few small adjustments, your device will stay at the right temperature:

  • Optimize your software: Regularly update iOS and disable 'Background App Refresh' for apps you don't immediately need.
  • Check your battery health: Go to Settings > Battery > Battery Health. If the percentage drops below 80%? Then your phone will get hot faster and the battery (or the device) needs to be replaced.
  • Invest in quality: Only use Apple-original or MFi-certified chargers and cables.

When to seek professional help?

If your phone gets scorching hot even with very simple use (like sending a WhatsApp message), and the battery drains extremely quickly, then there is likely structural hardware wear or a defect in the cooling system.

Pay close attention to physical warning signs: a screen that is slightly loose or a bulging back indicates a swollen battery. In that case, stop using the device immediately and put it aside.

Time for an upgrade? With recurring heat problems, a repair is often expensive compared to the market value of your phone. Consider a premium refurbished iPhone. These devices are strictly checked, have an excellent battery, and are much kinder to your wallet.

Conclusion: staying calm is key

A warm iPhone is not a disaster, as long as you don't panic. The device protects itself from overheating and will shut down before internal chips melt. Just let it cool down quietly in a shady spot, far away from the freezer.

Prevent problems by using reliable accessories wisely and giving your device some rest occasionally, for example by switching to an iPad for heavy tasks. If your iPhone remains a hothead despite all the tips? Then we at leapp will be happy to help you with a reliable and affordable replacement.

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