The OPPO R11 was announced in 2017, June With 5.5 inches, 83.4 cm2 (~72.2% screen-to-body ratio) AMOLED, Powered by Qualcomm SDM660 Snapdragon 660 (14 nm) and running Android 7.1.1 (Nougat), ColorOS 3.1, the device delivered smooth performance and multitasking capabilities. while the Li-Po 3000 mAh, non-removable ensured long-lasting usage.