Oppo is china brand.So we have to not encourage this mobile. This mobile has 4 gb Ram, 5.5 display, 64 internal gb. External we can expended upto 128gb. Mainly this is best in mobile. The rare camera is 13 mp and secondary cam is 16. This mobile very helpful to selfie lovers only. The battery backup is good. This mobile avaliable in gold colour also.Now a days Oppo mobiles using only selfie lovers. This mobile contains 4gb Ram, no hanging problem. The front camera is very good to compare back camera.So finally it is avaliable in medium cost.