This phone never gets very hot. Maybe the first time when it was installing and setting up it got a hot but since then it's never gotten any more than warm even while running multiple applications and or charging. I'm not suggesting by any means that the phone doesn't get hot internally but seems to be able to dissipate the heat if that's the case. I guess some of it could be due to running Android 7.0 but I don't really know. When I ran Android 7.0 on the Nexus LG 5x that would get hot sometimes but just not seeing it on the v20.