Going from the 6s to the 7 little improvement. Disappointed. 7 pics on average look a little brighter (exposed a bit more) and they do have less noise which is why most people think they are better. But if you compare the details the 7 seems to be using more noise reduction in software which is smudging the details. The 6S pics, while noisier, tend to have more detail. Whatever the case most people will see little to no difference, except for slightly brighter pics.