is there anything more any phone can be made to do than the 6s? If you look back at how mobiles or even iPhones have improved there are a lot of new features been added at first mobiles before iPhones were black and white. Then colour and cameras and touch screen came out. I don't think the first iPhone even recorded video. My first video phone only recorded a few seconds video before stopping filming. Over last few years I haven't noticed anything major be added to mobiles til the new Live Photos. Now apart from similar updates like what you got from upgrading to iPhone 6 from 5s I can't see what more can be done. Even more mp cameras don't make any big noticeable difference viewing photos on phone same with the 4K video to view on phone there isn't a noticable difference. The biggest difference has been the front camera on iPhone from 1.2 to 5mp because the 1.2 mp was low quality it's easy to spot difference in clearer photos.