Iphone 6s is very superb phone in every nook amd corner.but I suggest you if you allready buy iphone 6 then please not weast money on this but you used iphone 5 or 5s then this is right choise for you.
First of all apple makes phone more smothly to upgrade chip to A9 which very excellent.camera quality more upgrade to caught up every moumemt of life .3D touch run perfectlyand it is very useful.great display.bur bettary life is average.