Asus zenfone max have 5000mah battery it works very good best in class it have 13 megapixel rear camera with duel led flash and front 5 megapixel is very good it have 1ghz its average 2gb of ram this phone is not good for gaming works very slow can’t spport high quilty games it takes 3-4 hour charging time not spport fast charging this phone is best only for battery and good camera .