watchOS
 | |
 watchOS 10 running on an Apple Watch SE | |
| Developer | Apple, Inc. |
|---|---|
| Initial release | watchOS 1 (24 April 2015) |
| Latest release | watchOS 11.2 (22S101) (11 December 2024) |
| Latest preview | watchOS 11.3 (22S5534d) (16 December 2024) |
| Supported platforms | ARM32 (prior to watchOS 9) ARM64 (as of watchOS 5) |
| Kernel type | Hybrid (XNU) |
| User interface | Cocoa Touch |
| License | Proprietary (with open source components) |
watchOS is a series of mobile operating systems developed by Apple for their Apple Watch platform. It is based on codebase of iOS.
watchOS 1 through watchOS 8 was 32- and 64-bit compatible. However, watchOS 9 dropped support for 32-bit software. watchOS 5 was the first version of watchOS to bring 64-bit support.
Timeline[edit | edit source]
| Name | Darwin version | Codename | Release date | Notes |
|---|---|---|---|---|
| watchOS 1 | 14 | SkiHill (watchOS 1.0) Bucket (watchOS 1.0.1) |
April 2015 | First version of watchOS |
| watchOS 2 | 15 | Bondi (watchOS 2.0) Atlantic (watchOS 2.0.1) Bahar (watchOS 2.1) Coral (watchOS 2.2) Fish (watchOS 2.2.1) Goldfish (watchOS 2.2.2) |
September 2015 | |
| watchOS 3 | 16 | Daytona (watchOS 3.0) Blowfish (watchOS 3.1) Catfish (watchOS 3.1.1) Dogfish (watchOS 3.1.3) Electric (watchOS 3.2) Firefish (watchOS 3.2.2) Ghostfish (watchOS 3.2.3) |
September 2016 | |
| watchOS 4 | 17 | Fortune (watchOS 4.0 - 4.0.1) Beluga (watchOS 4.1) Catamaran (watchOS 4.2) Dolphin (watchOS 4.2.2 - 4.2.3) Emperor (watchOS 4.3) Ferry (watchOS 4.3.1 - 4.3.2) |
September 2017 | |
| watchOS 5 | 18 | Glory (watchOS 5.0 - 5.3.9) | September 2018 | First version of watchOS to bring 64-bit support |
| watchOS 6 | 19 | Grace (watchOS 6.0 - 6.3) | September 2019 | |
| watchOS 7 | 20 | Hunter (watchOS 7.0 - 7.6.2) | September 2020 | |
| watchOS 8 | 21 | Jupiter (watchOS 8.0 - 8.8.1) | September 2021 | Final version of watchOS with 32-bit support |
| watchOS 9 | 22 | Kincaid (watchOS 9.0 - 9.6.3) | September 2022 | |
| watchOS 10 | 23 | Lighthouse (watchOS 10.0 - 10.6.1) | September 2023 | |
| watchOS 11 | 24 | Moonstone (watchOS 11.0 - 11.3) | September 2024 |