Oppo f1s very good phone. This phone are good performancenphone. Sound reception are very good. This phone easy of use are very good. This phone style and design are good. And this phone are range and features are very good. And oppo f1s phone are realiability and durability are good.and this phone are value for money are good. And this phone are good condition phone. This phone are selfie export phone. Front and rear camera are very good. Battery life is good. Oppo f1s phone are very good operating system.