Hello friends, This mobile starting my family in my uncle ate optain and first time me use this mobile very intersting but oppo A57 modal mobile in back camera very lazy and picture quality very bad , oppo A57 mobile in sound very funny and very bad , this mobile in battery backup very ugly and only for 2 hour using only mobile and very fast lost battery , network connection very loose , but oppo a57 modal mobile price is very nice them , and friends 50 % mobile like and 50% mobile dislike and mobile color diffrent are optain this very nice