The OnePlus One was announced in 2014, April. Released 2014, June With 5.5 inches, 83.4 cm2 (~71.9% screen-to-body ratio) IPS LCD, Powered by Qualcomm MSM8974AC Snapdragon 801 (28 nm) and running Android 4.4.2 (KitKat), upgradable to 6.0.1 (Marshmallow), the device delivered smooth performance and multitasking capabilities. Its 13 MP, f/2.0, 1/3.1", 1.12µm, AF rear camera captured crisp photos and 4K@30fps, 4K(DCI)@24fps, 1080p@60fps, 720p@120fps, HDR, stereo sound rec. video, while the Li-Po 3100 mAh, non-removable ensured long-lasting usage.