Yesterday I have purchased Redmi note 4 . 64 GB model in India. Phone screen good, sound good, but battery draining very fast. Unable to uninstall some applications like Weather , Anti virus etc. I have checked battery usage around 30% used for Android system, 12 % for Android. 12 hours backup also I am not getting in normal use. It's not expected from 4000 mah battery. Battery performance very poor compare with Asus.