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.
CyanogenMod team are slowly starting to push out the official CM 13 ROM running on Android 6.0. There are only a few devices which have got the official version of CM 13 ROM and OnePlus One is among them. If you want to install this ROM on OnePlus One, follow the guide below.