Xiaomi note 3 is not best phone.i don't mean it is bad but it can be improved by using to improve their RAM. There camera is not as I expected. Also thier cost is much high as compare to phone. All we know that xiaomi also made Redmi 3s prime which is much cheaper than xiaomi note 3 but their features is nearly same, lIke camera clearity, pixels, ram, rom. And the most important drawback its only one thing is use either secnd sim or memory card. Its great advance feature is reboot which much help to developer.
