OnePlus One sports a 5.5″ 1080×1920 JDI display. It’s powered by a 2.5GHz Qualcomm Snapdragon 801 processor and 3GB of RAM. Storage comes in at either 16GB or 64GB. Other features include a 13MP camera, 3100mAh battery, dual front speakers and StyleSwap replaceable back covers. On the software side, the OnePlus One runs a version of Cyanogenmod with a unique modified user interface.
OnePlus are rolling out a fresh build YOG7DAS2K1 of Cyanogen OS 12.1 for OnePlus One. It contains critical security update for your OnePlus One, apart from usual bug fixes. It also adds “deeply integrated” features for Cortana including the voice activation and ability to toggle different settings. If you have not received the OTA and want to manually install the update, a detailed guide is given below.