
Notable features of version 2.0 and 2.1.1 include app permissions, Waves MaxxAudio, SwiftKey keyboard, off-screen gestures, custom icons, dark mode, manual camera mode, and RAW support for 3rd party apps, like Camera FV-5 2.75. In an interview published on 3 September 2016, XDA Developers revealed OnePlus was "actively merging both platforms (OxygenOS and HydrogenOS) into a single cohesive operating system based on Android".

There used to also be another version of the OS designed specifically for the Chinese market called HydrogenOS ( Chinese: 氢OS pinyin: qīng OS). OxygenOS was developed for their overseas market. OxygenOS ( Chinese: 氧OS pinyin: yǎng OS) is an Android-based operating system (OS) developed by Chinese smartphone manufacturer OnePlus exclusively for their smartphones.


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