It builds on the Mi 4s with premium looks, more storage, more RAM, and more battery capacity, and flaunts a new fingerprint scanner at the back and camera is better and battery backup is owesome around 2 days backup because I use since last 4 months it’s very amazing phone The re-design works quite well though and the hexa-core chipset is a sensible choice considering the phone’s standing in the pecking to order and very comfortable to use