78 OS releases, 166 features in database
watchOS watchOS 4
0 Features
Related Take Control Books
 | Take Control of Apple Watch | Customize your Apple Watch, personalize watch faces, and master health, fitness, communications, and core apps—covers all models through Series 11 and watchOS 26. |
4 Supported Devices
Devices that can run watchOS 4.
| Device | Released | watchOS |
|---|---|---|
| Apple Watch Series 3 | Sep 2017 | 4 to 8 |
| Apple Watch Series 1 | Sep 2016 | 3 to 8 |
| Apple Watch Series 2 | Sep 2016 | 3 to 8 |
| Apple Watch (1st generation) | Apr 2015 | 1 to 4 |