I am using apple iphone 6s . iphone 6s is amazing phone.features of iphone 6s are: -3d touch display, 4k resolution i-sight camera with 12MP back & 5MP front camera. baitery life is too good in iphone 6s . screen size is 4.7inch same like iphone 6 but perfomance is very faster than all iphone . siri is more improved in this iphone . speaker is very nice. available in 4 color . new color in iphone 6s is rosegold .all over iphone 6s is faster than all mobile phones in the world.