iPhone 6s Heats up on normal use

[kokhoong0624]

My iPhone heats up when I'm doing simple tasks like reading Facebook and Twitter.
Is this normal?

 

[Newtons Apple]

Depends on what you mean by heating up. Jus the display backlights create a good bit of heat and cpu intensive apps will add to it. Only time I notice mine getting a little warm is on a long phone call as I do not do games or social media. Facebook is a known battery hog and much of the battery's energy is always wasted in heat.

 

[d5aqoëp]

Just run geekbench and check if your CPU is made by Samsung. My sister's 6S heats up like crazy and it is Samsung. Reduced battery life is also a nice bonus.

N71mAP = TMSC,
N71AP = Samsung

You can full reset and set it up as new. If it still heats without doing much, get it replaced by Apple.

 

[AFEPPL]

My 6S is not too bad, but does get warm.
My 5S will go really hot and nothing works (closing all apps) other than turning of for a while.