Guys if you have some knowledge about mobiles and tablets you will surely know that both hardware as well as software are important for best performence of the device, most devices lag due to hardware issues or some will bhi fast but too much battery consuming . but dude wait , its not over the Xiomi redmi 3s prime is the best artphone i’ve ever used , its the best in performance , storage , RAM , camera quality, as well as a good battery backup , I have only 5 stars to rate tgid phone but this deserves much mure than that. I must say before u think about some other smartphone at this price range u must try this .i can bet this you will definately become a fan of this. loved it.