iPhone 5s hanging?
I have an iPhone 5s that I bought last year in July, so it's still under its warranty period. I have the latest iOS update and my phone is in great condition; haven't ever dropped it or anything like that. However, recently I've noticed that my phone although rarely, hangs for like 15secs in the middle of an application or when I turn on the camera. Sometimes it also hangs when it's locked. Like I press the power button, but the phone won't light up. Then the third or fourth time it will. This is very rare and has happened like three times so far but I'm still concerned. I was thinking of taking it to an Apple authorised store and getting it serviced. What should i do?
iPhone 5s, iOS 8.3