The cheapest phone in this price bettry 4100mah. the posture of the mobile and is it effective quick charging is supported in redmi note 4 you get a 5.5-inch full HD IPS LCD display on the front coverd with curved protective glass. 13mp camera at the back with PDAF(phas detection auto focus) aand dual tone LEd flash, while on the front there is a 5mp camera sound is clear and brilliant. has improved significantly design slim metal build, with plastic at the top and bottom best look and stylish design. great deal good and cheap