Redmi 4 used to be the best smartphone at the time when it was lauched due to its price range.its major highlight its big battery of about 4000-4100mah which promises you a 1and half day of usage if you re a heavy user.i use to get minimum of 1 full day even when I was using it very heavily it includes high end gaming 4g usage all of my social sites was running in back and I was imppressed very much with its task hamdling capability.this 64 gb varient is so smooth in perfomance.thanks to snapdragon435 and 4gb ram.even though its a good perfomer it do lagged while I was playing ashphalt 8 so keep that in mind if you are planning to buy one.i mailed redmi teams for help.they replayed me that they will fix it soon through software update.the camera perfomance was great.overall I really enjoy having this handset.im really impressed with this varient of redmi4