8. Oppo R7 Plus

Out of many smartphones Oppo produced, Oppo R7 Plus with 4GB RAM is probably one of the best. The smartphone features a huge 6 inch display, 13MP/8MP camera duo, 4GB RAM/64GB ROM capacity and a huge 4100 mAH battery. Oppo has been known for good quality camera smartphone with elegant design and smooth performance, and this Oppo R7 Plus is an ideal representative of those signatures.

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