The OnePlus 7 was announced in 2019, May 14 With 6.41 inches, 100.9 cm2 (~85.5% screen-to-body ratio) Optic AMOLED, HDR10, Powered by Qualcomm SM8150 Snapdragon 855 (7 nm) and running Android 9.0 (Pie), upgradable to Android 12, OxygenOS 12, the device delivered smooth performance and multitasking capabilities. while the Li-Po 3700 mAh, non-removable ensured long-lasting usage.