We heve reported that Apple iPhone X Users Are Experiencing Overheating and Data Consumption Issue.

Why Does iPhone X Get Hot and Drain the Battery?

There are actually external and internal reasons that cause iPhone X heats up quickly:

Putting your iPhone X under direct sunlight or in a closed car will definitely rise the temperature and make the device warmer, also the pocket cling to your body plays a part, so you should avoid leaving your iPhone in a hot environment.

The internal cause of an overheating iPhone X is mainly due to the overloaded processor and design. For one thing, if you are playing graphically advanced games like Pokemon Go or watching HD videos from YouTube, you are likely to see iPhone X heating up while using since the A11 CPU is taxed all the time. For another, the glass case is a terrible insulator that retains all the heat inside.  

How to Stop iPhone X from Overheating?

After knowing why your iPhone X gets hot fast, the next thing to do is trying possible iPhone X overheating fixes until you resolve this issue. Physical methods like removing the phone shell, stop using iPhone X when charging, are much easier to be applied, so you are good to try them before moving to below 7 ways.  

1: Force Reboot iPhone X

When you notice iPhone X is getting hot and the battery is draining insanely fast when using, the first attempt is to force restart your device and refresh the system. To do this, quickly press and release the volume-up button then the volume-down button and keep holding the side button until the Apple logo shows.

2: Disable Background App Refresh

Turning off background app refresh has made a big difference for some users to cool down overheated iPhone X. Go to Settings > General > Background App Refresh and switch it off. Or you can selectively decide which apps to use cellular data in the background.

3: Turn off Bluetooth and Airdrop

With Bluetooth and Airdrop always on, your device will always keep active and the processor is revved up, therefore it makes some sense that iPhone X gets burning hot. 

4: Reset All Settings

Resetting system settings can fix most of glitches, and hopefully it can work with your heating up iPhone X. Navigate to Settings > General > Reset > Reset All Settings. Then your device will be restored to default settings.

5: Remove Large Apps

A force quit of apps cannot fundamentally solve iPhone X heating issue, so you can consider completely deleting programs that take up too much CPU usage. A simple reference is on Settings > Battery, where you can see the detailed battery usage of each app.

6: Update iOS Version

New software update always contains bug fixes and improvements. If iPhone X overheating issues frequently occur, Apple will try to resolve it in the latest iOS update. Either OTA or iTunes allows you to update to latest iOS 11 version.  

7: Repair iOS System

In most of cases, when your iPhone X is hot in use, you have a software problem. An ultimate solution is flash again.