I have Iphone 6. Actually the screen is a bit too big for me. The screen cracked at the first time it hit the floor one month ago T T. This never happened to my previous Iphones.
I really love the size of 5s anyway.
Just updated to Android 5.0 and holy wow, I am not disappointed. I haven't had any battery problems, and the whole layout is just super clean. Loving it.