# OxygenOS

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

## Features

* Version 1.0 was based on Android 5.0.1 and was available only for the OnePlus One via a flashable ZIP provided through the OnePlus website.
* Notable features of version 2.0 and 2.1.1 include app permissions, Waves MaxxAudio, Microsoft 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.
* On 31 December 2016, OnePlus released OxygenOS 4.0.0 based on Android Nougat and includes its features and several other modifications to the public via OTA download.
* On 31 January 2018, OnePlus released OxygenOS 5.0.3 based on Android Oreo to the public via OTA download. In May 2018, OnePlus launched OnePlus 6 with OxygenOS based on Android Oreo 8.1.
* On 29 October 2018, OnePlus launched OnePlus 6T with OxygenOS 9.0 based on Android Pie.
* On 25 December 2018, OnePlus released OxygenOS 9.0.0 based on Android Pie for OnePlus 5/5T to the public via OTA download.
* On 21 September 2019, OnePlus announced the release of OxygenOS version 10.0 based on Android 10 for OnePlus 7 and 7 Pro. This initial release was followed by Android 10 based builds for older devices later.
* On 6 August 2022, OnePlus announced OxygenOS 13 which is based on Android 13. OxygenOS 13 is eligible for OnePlus 10 series to OnePlus 8 series smartphones and some Nord smartphones.
* On 25 September 2023, OnePlus recently announced that it will globally launch the Android 14-based OxygenOS 14.

## Privacy

OnePlus released a statement about data collection and analytics, claiming that the data is only used for system improvement and optimization, are not shared with third parties, and can be disabled by users in the system settings. OnePlus also says that they are revising the data analysis mechanism, and will no longer collect certain data.

## Devices running on OxygenOS

| Device | Original Version | Current Version |
| OnePlus Number Series |||
| OnePlus One | Cyanogen OS 11 (Android 4.4.2) | OxygenOS 2.1.4 (Android 5.1.1) |
| OnePlus 2 | OxygenOS 2.0 (Android 5.1.1) | OxygenOS 3.5 (Android 6.0.1) |
| OnePlus X | OxygenOS 2.0 (Android 5.1.1) | OxygenOS 3.1 (Android 6.0.1) |
| OnePlus 3 | OxygenOS 3.2 (Android 6.0.1) | OxygenOS 9.0 (Android 9) |
| OnePlus 3T | OxygenOS 3.5 (Android 6.0.1) | OxygenOS 9.0 (Android 9) |
| OnePlus 5 | OxygenOS 4.5 (Android 7.1.1) | OxygenOS 10.0 (Android 10) |
| OnePlus 5T | OxygenOS 4.5 (Android 7.1.1) | OxygenOS 10.0 (Android 10) |
| OnePlus 6 | OxygenOS 5.0 (Android 8.1) | OxygenOS 11.1 (Android 11) |
| OnePlus 6T | OxygenOS 9.0 (Android 9) | OxygenOS 11.1 (Android 11) |
| OnePlus 7 / 7 Pro | OxygenOS 9.0 (Android 9) | OxygenOS 12.0 (Android 12) |
| OnePlus 7T / 7T Pro | OxygenOS 10.0 (Android 10) | OxygenOS 12.0 (Android 12) |
| OnePlus 8 / 8 Pro | OxygenOS 10.0 (Android 10) | OxygenOS 13.0 (Android 13) |
| OnePlus 9R | OxygenOS 10.0 (Android 10) | OxygenOS 13.0 (Android 13) |
| OnePlus 8T | OxygenOS 11.0 (Android 11) | OxygenOS 14.0 (Android 14) |
| OnePlus 9 / 9 Pro | OxygenOS 11.1 (Android 11) | OxygenOS 14.0 (Android 14) |
| OnePlus 10 Pro / 10R / 10T | OxygenOS 12.1 (Android 12) | OxygenOS 15.0 (Android 15) |
| OnePlus 11 / 11R | OxygenOS 13.0 (Android 13) | OxygenOS 15.0 (Android 15) |
| OnePlus 12/12R | OxygenOS 14.0 (Android 14) | OxygenOS 15.0 (Android 15) |
| OnePlus 13/13R | OxygenOS 15.0 (Android 15) | OxygenOS 15.0 (Android 15) |
| OnePlus Nord Series |||
| OnePlus Nord | OxygenOS 10.0 (Android 10) | OxygenOS 12.1 (Android 12) |
| OnePlus Nord N10 5G | OxygenOS 10.5 (Android 10) | OxygenOS 11.1 (Android 11) |
| OnePlus Nord N100 | OxygenOS 10.5 (Android 10) | OxygenOS 11.1 (Android 11) |
| OnePlus Nord CE 5G | OxygenOS 11.0 (Android 11) | OxygenOS 12.1 (Android 12) |
| OnePlus Nord N200 5G | OxygenOS 11.0 (Android 11) | OxygenOS 12.1 (Android 12) |
| OnePlus Nord 2 5G | OxygenOS 11.3 (Android 11) | OxygenOS 12.1 (Android 12) |
| OnePlus Nord 2T | OxygenOS 12.1 (Android 12) | OxygenOS 12.1 (Android 12) |
| OnePlus Nord CE 2 5G | OxygenOS 11.3 (Android 11) | OxygenOS 13.0 (Android 13) |
| OnePlus Nord CE 2 Lite 5G | OxygenOS 12.1 (Android 12) | OxygenOS 12.1 (Android 12) |
| OnePlus Nord N20 5G | OxygenOS 11.3 (Android 11) | OxygenOS 11.3 (Android 11) |
| OnePlus Nord 3 | OxygenOS 13.1 (Android 13) | OxygenOS 15.0 (Android 15) |
| OnePlus Nord CE3 | OxygenOS 13.1 (Android 13) | OxygenOS 15.0 (Android 15) |
| OnePlus Nord CE3 Lite | OxygenOS 13.1 (Android 13) | OxygenOS 15.0 (Android 15) |
| OnePlus Nord N30 | OxygenOS 13.1 (Android 13) | OxygenOS 15.0 (Android 15) |
| OnePlus Nord 4 | OxygenOS 14.1 (Android 14) | OxygenOS 15.0 (Android 15) |
| OnePlus Nord CE4 | OxygenOS 14.1 (Android 14) | OxygenOS 15.0 (Android 15) |
| OnePlus Nord CE4 Lite | OxygenOS 14.1 (Android 14) | OxygenOS 15.0 (Android 15) |
| OnePlus Pad Series |||
| OnePlus Pad | OxygenOS 13.1 (Android 13) | OxygenOS 13.1 (Android 13) |
| OnePlus Pad 2 | OxygenOS 14.1 (Android 14) | OxygenOS 14.1 (Android 14) |

## OxygenOS 15

These devices are eligible to get OxygenOS 15 update:-
* October: OnePlus 12, OnePlus 12R and OnePlus 12R Genshin Impact Edition
* November: OnePlus Open and OnePlus Pad 2
* December: OnePlus 11 5G, OnePlus 11R 5G, OnePlus Nord 4, OnePlus Nord CE 4 5G, OnePlus Nord CE 4 Lite 5G, OnePlus Pad
* January, 2025: OnePlus 10 Pro 5G, OnePlus 10T 5G, OnePlus Nord 3 5G
* February, 2025: OnePlus 10R 5G, OnePlus Nord CE 3 5G
This update reduces system storage by 5GB, smoother experience, enhanced AI features, and security features from Android 15 such as Theft Protection and Google Play Protect Live Threat Detection.

## History

In July 2021, OnePlus merged OxygenOS with Oppo’s ColorOS. Both companies’ software will remain separate and continue to serve their individual regions (OxygenOS for OnePlus phones globally, ColorOS on OnePlus and Oppo devices in China) but share a common codebase, which OnePlus says should standardize its software experience and streamline the development process for future OxygenOS updates.