Comparing with the other iPhone models, iPhone 6 misses a lot of features such as the optical image stabilisation, live photos,3d touch,etc…. It has the first generation touch id which isnt great but good. read more
While using iPhone 6 I have not experienced any major difference. iPhone 6 fronts camera is same as 6s camera. Iphone 6s back camera or primary camera has a little difference in low lightening condition. read more