The OnePlus X was announced in 2015, October. Released 2015, November With 5.0 inches, 68.9 cm2 (~71.3% screen-to-body ratio) AMOLED, Powered by Qualcomm Snapdragon 801 (28 nm) and running Android 5.1.1 (Lollipop), upgradable to 6.0.1 (Marshmallow), OxygenOS 2.2.3, the device delivered smooth performance and multitasking capabilities. Its 13 MP, f/2.2, 1/3.1", 1.14µm, PDAF rear camera captured crisp photos and 1080p@30fps, 720p@120fps video, while the Li-Po 2525 mAh, non-removable ensured long-lasting usage.