Oppo f1s is good smart phone. Oppo f1s two types have. 32 GB -3GB Ram, 64GB-4GB Ram both also nice. I’m using oppo f1s 64GB smart phone. Really very nice mobile. No hanging, high speed. Price equal for the future. Oppo f1s front camera is very good visual have. So I really like oppo f1s. Oppo f1s my best smart phone. Oppo f1s have high speed finger lock scanner.