The phone is 16mp and front8mp the sumsung a7 has 5mp front carma in magapickles xiaomi redmi noto 3 wons bet in cleatity sumsung a7 5mp wons . And the display is not good as sumsung a7 ok leave the a7 its not good as j2 . And j2 price lesser thean xiaomi redmi note 3 . And xiaomi redmi note 3 battery is good. Another great thing about xiaomi redmi note 3 it newer gets heat. Taking about tam ram is also ddr4 good . Gaming good . Brossing no problem .biuld quality is good .but the back is not good bets its ok