78 OS releases, 166 features in database
watchOS watchOS 26.4
3 Features
| Health & Fitness | ||
| Workout Type Icon | Workout type icon for single-tap workout starts | New in watchOS 26.4 |
| System & Continuity | ||
| AirPods Max 2 Support | New in watchOS 26.4 | |
| UI & Design | ||
| New Emoji | 8 new emoji | New in watchOS 26.4 |
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. |
6 Supported Devices
Devices that can run watchOS 26.4.
| Device | Released | watchOS |
|---|---|---|
| Apple Watch SE (3rd generation) | Sep 2025 | 26 (still supported) |
| Apple Watch Series 11 | Sep 2025 | 26 (still supported) |
| Apple Watch Ultra 3 | Sep 2025 | 26 (still supported) |
| Apple Watch Series 10 | Sep 2024 | 11 to 26 (still supported) |
| Apple Watch Series 9 | Sep 2023 | 10 to 26 (still supported) |
| Apple Watch Ultra 2 | Sep 2023 | 10 to 26 (still supported) |
Last Model Not Compatible
The newest model in each product line that can’t run watchOS 26.4—the support cutoff sits just above these.
| Product line | Last incompatible model | Released | Tops out at |
|---|---|---|---|
| Apple Watch Ultra | Apple Watch Ultra | Sep 2022 | watchOS 26 |
| Apple Watch | Apple Watch Series 8 | Sep 2022 | watchOS 26 |
| Apple Watch SE | Apple Watch SE (2nd generation) | Sep 2022 | watchOS 26 |