The redmi 3s is the best phone ever and it also not a costly so any one buy this phone and redmi 3s is have very good battery backup it 4100 mh battery which is very good for phone and also many features in this phone and it have least processor which help to not hang phone and redmi 3s have back camera of 13 mega pixel and also have 5 mega pixel camera in front which give very good photos and redmi 3s is very good looking phone which very upmarket phone in cheaper so I suggested you buy redmi 3s for better results