Oppo F21 Pro official Pictures. Oppo F21 Pro is a Smartphone of oppo. The Oppo F21 Pro Android Smartphone. Announced Apr 2022. Features 6.43″ Display Snapdragon 680 4G Chipset 4500 MAh Battery 128 GB Storage 8 GB RAM Corning Gorilla Glass 5. Oppo F21 Pro price starts.