Close Your Apps
When you have apps open, many of them still can collect data in the background, like Facebook, and Maps for example. That can create unnecessary heat which all of the iPhone’s components have to deal with. So keeping those sneaky apps closed can help your phone stay cool.
When you are finished with social media or video apps, make sure they are fully closed down before moving on. Close any apps that may use location services, including Google Maps, after you are done.