The OPPO A11 was announced in 2019, October With 6.5 inches, 102.0 cm2 (~82.5% screen-to-body ratio) IPS LCD, Powered by Qualcomm SDM665 Snapdragon 665 (11 nm) and running Android 9.0 (Pie), ColorOS 6.0, the device delivered smooth performance and multitasking capabilities. while the Li-Po 5000 mAh, non-removable ensured long-lasting usage.