Oppo is a biggest mobile brand in India. Oppo F7(4GB RAM, 64 GB Storage, Li-ion 3400 mAh battery and Android OS) is the very bad phone I am using this phone for 1 months this phone very problem. Very heavy games not supported with hangs this mobile. This mobile price is very high and feature less and very bad. I am not satisfy with this product because this product is very slow. Oppo is a good brand but some product is not good. before buy this please think about once .