Oppo F1s is a gud mobile bt I don’t think it’s selfly expert! Let me focue on overall thingh, So let’s focus on Screen and display, RAM and ROM, camera, performence, battery capacity, memory.it’s a duel sim mobile 3g 4g is supportable jio users go for it and let’s start with screen it has 5.5 inch display with 720x1280 resolution which is can say hd display and which gud to have in hand .knowing about RAM it’s vary which depends on internal memory! While for 32gb internal storage it’s come with 3gb ram and for 64gb it’s come with 4gb ram which mean a lot to us! Comeing on camera it’s have both camera front and back camara! Front camera oppo call it’s selfy expert mobile bt I did’t think 13 mega pixel that oppo is giveing not worth it. And back rare camera also haveing 13 magepixel camera bt as we say it’s gud camera.Overall for camera out of 5 I give 4 and it has 1.5GHz octa-core processor which oppo is give nice.about battery it’s haveing 3075mah which give better battery life for more time and it’s non removeable! And about memory I mention and specify on telling Detail about RAM, the expandable storage is up to 256gb which is too high! And also I notice that while playing high graphic games it’s get heated SO Over all I will say it’s gud mobile 10/7! Thank you.