Apple Watch Series 11: specs, who it fits and compatible phones
Apple Watch Series 11 is a smartwatch released in 2025 that works with iPhone. It lists Multi-system GNSS, 5ATM and Apple Pay.
Specifications
| Release year | 2025 |
|---|---|
| Case size | 42 / 46 mm |
| Display | OLED, Always-On |
| Brightness | 2000 nits |
| Battery as listed | Up to 24 hours |
| Water rating | 5ATM |
| Glass | Ion-X / sapphire (titanium) |
| Case material | Aluminum / titanium |
| GPS type | Multi-system GNSS |
| Operating system | watchOS 26+ |
| Works with | iPhone |
| Connection | eSIM · 5G |
| Contactless wallet | Apple Pay |
| Plan needed | None |
| Health sensors | SpO2, HRV, Skin temperature, ECG, Sleep apnea, Blood pressure trend |
| Safety features | SOS, Fall detection |
Who it fits
- Works with iPhone.
- Lists SOS or fall detection, see our guide for older adults.
- Lists an exact water rating of 5ATM or higher.
How it compares
Closest models from Apple
| Model | Release year | Case size | Battery as listed | Water rating | GPS type | Works with |
|---|---|---|---|---|---|---|
| Apple Watch Series 12 | 2026 | 42 / 46 mm | Up to 24 hours (10 workout hours) | 5ATM | Multi-system GNSS | iOS only |
| Apple Watch SE 3 | 2025 | 40 / 44 mm | Up to 18 hours | 5ATM | Standard GPS | iOS only |
| Apple Watch Series 10 | 2024 | 42 / 46 mm | Up to 18 hours (36 hours in low power mode) | IP6X | Standard GPS | iOS only |
Compared with Apple Watch Series 12, Apple Watch Series 11 lists an older release year (2025 against 2026) and Aluminum / titanium case material, where Apple Watch Series 12 lists Aluminum / titanium / ceramic.
Compared with Apple Watch SE 3, Apple Watch Series 11 lists Aluminum / titanium case material, where Apple Watch SE 3 lists Aluminum and case sizes of 42 / 46 mm against 40 / 44 mm.
Compared with Apple Watch Series 10, Apple Watch Series 11 lists a newer release year (2025 against 2024).
Only values listed exactly are compared.
Phone compatibility and plan
No plan is listed as needed. Has eSIM or LTE, so it can work without the phone if you add a carrier plan.
Sensors and features are listed as the maker names them and are not medical measurements.
Related guides and lists
- Battery life explained
- Phone compatibility
- Water resistance ratings
- Sensors explained
- Apple smartwatches
- All models
Last verified September 26, 2026
Features change with updates. Check the maker's current details. See our methodology