There are many folks out there who swear by stock Android. While we would agree that many Android skins tend to be bloated and poorly designed in comparison, some skins work so well that they transcend stock Android to become something even better. Today, we’re going to look at two of those skins in a kind of face-off event: Oxygen OS vs One UI.

Oxygen OS is the Android skin used exclusively by Chinese smartphone maker OnePlus. The skin debuted on the OnePlus One after the company’s partnership with Cyanogen, Inc failed. That company’s skin — known as Cyanogen OS — originally powered the One. In the beginning, Oxygen OS was all about simplicity with an experience as close to stock as possible. Things have changed a bit since then, though.