The Oppo F1s is one of best barnded mobile.f1s back camera is good but the selfie cam is very very good then other mobiles.this mobile give us long better life.
the mobile speed normal but that run every applications.and the voice quality is too much good its well work that areas where the signals strenght is weak.its smartest phone.the oppo f1s designed is awsome.i was use many branded phone but this one is best like touch sound picture quality everything.
I just recomended you if you wanna buy a smartest phone buy this one.