Typically , the most smartpho will only has one type of Android operating system, but OPPO N1 will be available in two version of Android operating system.
Both operating systems that are Android OS, but the one of Android OS is built by OPPO with own OPPO interface while the other one is built by Cyanogenmod. Both OS are officially entered into the OPPO N1 smartphone.
“Today I am pleased to announce that with the release of two OPPO N1 ROM , Color OS and CyanogenMod . With the two ROMs , OPPO want to give users the option to give a lot more options , ” said Tony Chen , CEO of OPPO .
Unfortunatelly, there is not mentioned in detail what a difference these two operating systems. OPPO just claim that this was done in order to give a wider choice.
OPPO N1 smartphone is quite unique . Not only in terms of software, but also on the design of the phone itself . Starting from the camera can be rotated , ‘ touch area ‘ on the back , and other quirky features.[source]