Full specifications, features and battery life for the Apple Watch Series 11, the brand’s mainstream model.
| Manufacturer | Apple |
| Type | GPS smartwatch |
| Series | Watch Series |
| Released | 2025 |
| Price at launch | $399 / £369 / €449 |
| Predecessor | Apple Watch Series 10 |
| Successor | — |
| Case sizes | 42mm, 46mm |
| Thickness | 9.7mm |
| Processor | S11 SiP |
Specifications and features as at launch. Requires paired iPhone for setup and most features.
Expert opinion | What’s new | Specifications | Battery life | Features | Further reading
Expert opinion
Series 11 carries the same S10 chip as Series 10, alongside a brighter LTPO3 wide-angle OLED display rated to 2,000 nits and always on. Sensor hardware is unchanged from Series 10 and includes ECG, blood oxygen, third-generation optical heart rate, skin temperature, a depth gauge and a water temperature sensor. Blood oxygen monitoring, disabled on US units of the Series 9 and 10 through a patent dispute, is reactivated globally on Series 11. FDA-cleared hypertension notifications and Sleep Score are new software features, also available to Series 9 and 10 on watchOS 26 rather than exclusive to this hardware. Storage rises to 64GB and the aluminium models gain a ceramic-coated Ion-X glass, rated twice as scratch-resistant as the uncoated glass on Series 10, though it remains a step below the sapphire crystal fitted to Ultra models. The SE 3 lacks ECG, blood oxygen and the depth gauge, so Series 11 remains the point in the range where the full sensor suite becomes available.
What’s new versus Series 10
- Battery life claim rises to up to 24 hours, from up to 18 hours
- 5G RedCap cellular modem, up from 4G LTE
- Ion-X glass gains a ceramic coating, rated twice as scratch-resistant as the uncoated Series 10 glass
- Hypertension detection added, alongside Sleep Score and globally reactivated blood oxygen monitoring
- S11 SiP processor, up from S10
- Space Grey aluminium finish added to the range
watchOS 26 ships on Series 11 as standard and is also available as an update for Series 10. Series 9 and Series 10 both support hypertension detection and Sleep Score once updated to watchOS 26, so those two features are a software rollout rather than a Series 11 hardware exclusive.
Specifications
| Physical | |
|---|---|
| Case sizes | 42mm, 46mm |
| Width | 36mm (42mm case), 39mm (46mm case) |
| Thickness | 9.7mm |
| Materials | Aluminium: Jet Black, Silver, Rose Gold, Space Grey. Titanium: Natural, Gold, Slate |
| Weight | 29.7–30.3g (42mm aluminium), 34.6g (42mm titanium), 36.9–37.8g (46mm aluminium), 43.1g (46mm titanium) |
| Display | Ion-X glass with ceramic coating (aluminium models); sapphire crystal (titanium models) |
| Display type | LTPO3 wide-angle OLED, always-on, up to 2,000 nits |
| Storage | 64GB |
| Processor | S11 SiP |
| Health | |
| Hypertension detection | Yes |
| Sleep Score | Yes |
| Blood oxygen (SpO2) | Yes, reactivated globally |
| ECG | Yes |
| Heart rate | Optical (3rd generation) |
| Other sensors | Skin temperature, depth gauge, water temperature |
| Vitals app | Yes |
| Connectivity and battery | |
| Cellular | 5G RedCap modem (cellular models); 4G LTE not fitted |
| Operating system | watchOS 26 at launch |
| Battery, typical use | Up to 24 hours |
Battery life
Apple claims up to 24 hours of typical use, up from 18 hours on Series 10. Fast charging is fitted, so a short charge during a shower or while changing is enough to top up for the rest of the day or overnight sleep tracking, though daily charging remains necessary.
Features
Full feature detail is covered on the Apple Watch specifications index.
- Vitals app, surfacing overnight ranges for key health metrics and flagging exceptions
- Sleep Score, sleep stage tracking
- Hypertension notifications, pattern detection over time rather than a direct blood pressure reading
- Workout Buddy and the watchOS 26 Workout app redesign, shared with Ultra 3 and SE 3
