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 One is very developer friendly so there are large number of custom ROMs available. A new Exodus ROM is has arrived for OnePlus One. It will update OnePlus One to Android Marshmallow. If you want to try out this ROM, follow the guide below.