As we know oppo phones are famous for selfies going on that basis this phone consist of 16 mp of front facing camera and 13 mp of rear camera. It comes with snapdragon 435 octa processor , 3 gb of ram, 32 gb of storage, dual sim , 4g , android 6, wifi, bluetooth, 2900 mah.
Talking about its selfie camera it is capable of recording full hd videos. Image quality is fantastic in day light with good details and zero noise. But it gets on backstage in low light. Overall it has best front facing camera in this price range. While rear camera is 13 mp with f/2.2 aperture which is capable of taking decent pictures in daylight.
On the processor perspective it lacks behind as we can get a phone with same specs in less price than a57 and it is not much powerfull , phone gets heatup when on heavy games. Battery is also not enough , you would have to struggle to get your phone last for a day on full charge.
If you are looking for phone with good battery backup and value for money , you can opt for redmi note 4.
I would not reccomend this phone to others.