Apple Watch Ultra 4: A3579; 49 mm natural titanium; translucent gray Ocean Band
Apple Watch Series 10 (46 mm, GPS, aluminium): 46 mm aluminium case, GPS only (no cellular); Jet Black, Rose Gold and Silver. The 42 mm case, GPS + Cellular and titanium versions differ in weight, materials and connectivity.
| Specification | Apple Watch Ultra 4 | Apple Watch Series 10 (46 mm, GPS, aluminium) |
|---|---|---|
| Release year | 2026 | 2024 |
| Announcement / availability | 9 / 18 September 2026 Apple | — |
| Case | Grade 5 titanium; sapphire front crystal Apple | 46 mm aluminium; Ion-X front glass Apple |
| Size | 49 × 44 × 12 mm Apple | — |
| Weight | Natural titanium case 63 g Apple | — |
| Display | LTPO3 OLED; 422 × 514 Apple | LTPO3 OLED Always-On Retina, wide-angle OLED; 416 × 496 pixels, 326 ppi; 1220 mm² display area Apple |
| Brightness | 1 nit minimum; 3000 nits peak Apple | — |
| Chip | S11; dual-core 64-bit Apple | — |
| Storage | 64 GB Apple | — |
| Health sensors | Electrical/optical heart; blood oxygen; temperature Apple | — |
| Outdoor sensors | Depth, water temperature, compass, altimeter Apple | — |
| Positioning | Precision dual-frequency GNSS Apple | — |
| Wireless | Wi-Fi 4, 2.4/5 GHz; Bluetooth 5.3; UWB Apple | — |
| Cellular | A3579: 5G RedCap and LTE Apple | — |
| Manufacturer battery test | Up to 50 hours normal use; 84 in Low Power Mode Apple | — |
| Charging | About 45 minutes to 80% Apple | — |
| Water / dust | 100 m rating; IP6X Apple | — |
| Diving limit | Recreational diving to 40 m Apple | — |
| Phone compatibility | iPhone 11 / SE 2 or later; iOS 27+ Apple | — |
| Chip and storage | — | S10 SiP; 64-bit dual-core processor, 4-core Neural Engine; 64 GB storage Apple |
| Health and motion sensors | — | Electrical heart sensor; third-generation optical heart sensor; blood oxygen sensor; temperature sensor; compass; always-on altimeter; high-g accelerometer; high dynamic range gyroscope; ambient light sensor Apple |
| Water and dust | — | 50 m water resistance (WR50, ISO 22810:2010); IP6X dust; depth gauge and water temperature sensor Apple |
| Connectivity and location | — | Wi-Fi 4 (802.11n); Bluetooth 5.3; second-generation Ultra Wideband; L1 GPS, GLONASS, Galileo, QZSS, BeiDou Apple |
| Battery and charging | — | Up to 18 hours normal use, up to 36 hours in Low Power Mode; about 80% in around 30 minutes with fast charging Apple |
| Size and weight | — | 46 × 39 × 9.7 mm; 36.4 g (without band) Apple |
| Compatibility | — | iPhone Xs or later with iOS 18 or later (including iPhone SE 2nd generation or later) Apple |