Apple Watch Ultra 4 / Apple Watch Series 11 (46 mm, GPS)

Apple Watch Ultra 4: A3579; 49 mm natural titanium; translucent gray Ocean Band

Apple Watch Series 11 (46 mm, GPS): 46 mm aluminium case, GPS; Rose Gold, Silver, Space Gray, Jet Black. The 42 mm and GPS + Cellular (A3335, A3337) versions and the titanium cases with sapphire crystal are separate models.

SpecificationApple Watch Ultra 4Apple Watch Series 11 (46 mm, GPS)
Release year20262025
Announcement / availability9 / 18 September 2026 Apple—
CaseGrade 5 titanium; sapphire front crystal Apple—
Size49 × 44 × 12 mm Apple—
WeightNatural titanium case 63 g Apple—
DisplayLTPO3 OLED; 422 × 514 AppleAlways-On Retina, LTPO3 OLED (wide-angle OLED); 416 × 496 pixels, 1196 mm²; 326 ppi; up to 2,000 nits, 1 nit minimum

Because LTPO can drop the refresh rate very low, the display stays dimly on even with the wrist down. Wide-angle OLED is used to reduce brightness loss when the screen is viewed from the side.

Apple
Brightness1 nit minimum; 3000 nits peak Apple—
ChipS11; dual-core 64-bit Apple—
Storage64 GB Apple—
Health sensorsElectrical/optical heart; blood oxygen; temperature AppleElectrical heart sensor; third-generation optical heart sensor; blood oxygen sensor; temperature sensor

The electrical sensor records a single-lead ECG with the ECG app. According to Apple, blood oxygen and wrist temperature are for general wellness, not medical use.

Apple
Outdoor sensorsDepth, water temperature, compass, altimeter Apple—
PositioningPrecision dual-frequency GNSS Apple—
WirelessWi-Fi 4, 2.4/5 GHz; Bluetooth 5.3; UWB AppleBluetooth 5.3; Wi-Fi 4 (802.11n) 2.4 and 5 GHz; second-generation Ultra Wideband; Apple Pay, GymKit

This GPS model has no cellular connection; calls and data come through the paired iPhone or Wi-Fi. Ultra Wideband availability varies by country.

Apple
CellularA3579: 5G RedCap and LTE Apple—
Manufacturer battery testUp to 50 hours normal use; 84 in Low Power Mode Apple—
ChargingAbout 45 minutes to 80% AppleAbout 80% in 30 minutes; 8 hours of use from 15 minutes; 8 hours of sleep tracking from 5 minutes

The box includes a Magnetic Fast Charger to USB-C cable; Apple’s fast-charge figures used a separately sold 20 W USB-C adapter.

Apple
Water / dust100 m rating; IP6X Apple—
Diving limitRecreational diving to 40 m Apple—
Phone compatibilityiPhone 11 / SE 2 or later; iOS 27+ Apple—
Front glass—Ion-X glass with ceramic coating

According to Apple, the coating gives twice the scratch resistance of the Series 10 Ion-X glass. Titanium cases use sapphire crystal.

Apple
Chip and storage—S10 SiP (64-bit dual-core processor, 4-core Neural Engine); W3 wireless chip; 64 GB Apple
Health notifications—Hypertension notifications; sleep apnea notifications; sleep score and sleep stages; irregular rhythm and high/low heart rate notifications

Hypertension notifications do not measure blood pressure; they alert when patterns in the optical sensor data suggest high blood pressure. According to Apple, they are not for users under 22, those already diagnosed with hypertension or pregnant users.

Apple
Water and dust resistance—50 m (ISO 22810:2010); IP6X dust

Suitable for shallow swimming in a pool or the sea; not for scuba diving, waterskiing or high-velocity water sports.

Apple
Location—GPS, GLONASS, Galileo, QZSS, BeiDou; compass, always-on altimeter Apple
Battery—Up to 24 hours of normal use; up to 38 hours in Low Power Mode; built-in lithium-ion

Times are based on Apple’s usage scenario; workouts, GPS and the Always-On display shorten them.

Apple
Dimensions and weight—46 × 39 × 9.7 mm; 37.8 g; fits 140–245 mm wrists

The 42 mm aluminium GPS version weighs 30.3 g.

Apple
Compatibility—iPhone 11 or later, or iPhone SE (2nd generation or later), running iOS 26 or later

The watch cannot be used with Android phones.

Apple