The Xiaomi Mi 9 was announced in 2019, February 20 With 6.39 inches, 100.2 cm2 (~85.2% screen-to-body ratio) Super AMOLED, HDR10, Powered by Qualcomm SM8150 Snapdragon 855 (7 nm) and running Android 9.0 (Pie), upgradable to Android 10, MIUI 12.5, the device delivered smooth performance and multitasking capabilities. while the Li-Po 3300 mAh, non-removable ensured long-lasting usage.