OnePlus One | XDA Forums
Jul 29, 2022 · The OnePlus One is the first smartphone developed by new start-up company OnePlus. It was released in April 2014, marketed as the "2014 Flagship Killer". The device sports a 5.5" 1080x1920 JDI display. It's powered by a 2.5GHz Qualcomm Snapdragon 801 processor and 3GB of RAM.