I bought mi note 4 two month ago features of mobile is really good as compare to its price I am satisfied with this one its having 4GB ram and 64GB internam meomery operating is very easy touch is good and battery backup is also good I can carry my phone on travelling without power bank or charger its picture clearity is also good for touchwood I dont need to use photo editor sound system good and also its having a finger touch on back side so it secured my phone from other people and this is best part to unlock phone within second without taking any efforts