Oppo A77 4G official Pictures. Oppo A77 4G is a Smartphone of oppo. The Oppo A77 4G Android Smartphone. Announced Aug 2022. Features 6.56″ Display, MediaTek MT6765G Helio G35 Chipset, 5000 MAh Battery, 64 GB Storage, 4 GB RAM. Oppo A77 4G price starts.