The OPPO A57 4G was announced in 2022, May 27 With 6.56 inches, 103.4 cm2 (~84.2% screen-to-body ratio) IPS LCD, Powered by MediaTek MT6765G Helio G35 (12 nm) and running Android 12, ColorOS 12.1, the device delivered smooth performance and multitasking capabilities. while the Li-Po 5000 mAh, non-removable ensured long-lasting usage.