Oxygen OS is nothing but a Android skin from manufacturer like samsung’s touchwiz. OxygenOS is a customised version of Android operating system developed by Chinese smartphone manufacturer OnePlus for the overseas market. Versions 2.0 through 2.2.

What is difference between oxygen OS and Android?

Both Oxygen OS and One UI alter how the Android settings panel looks as compared to stock Android, but all the basic toggles and options are there — they just will be in different places. Ultimately, Oxygen OS offers the closest thing to stock Android as compared to One UI.

Can I use oxygen OS on Samsung?

Nope. OnePlus is a pretty small company, So they don’t have the time to even build ROMs for their own ex-flagship smartphones (talking about the termination of development of OxygenOS for OP One and Two). And you’re talking about other phones. Sorry bro/sis, There’s no OxygenOS ROMs for another device.