Apple Watch Ultra 4 / Apple Watch Ultra (49 mm, 1st generation)

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

Apple Watch Ultra (49 mm, 1st generation): Apple Watch Ultra, 49 mm natural titanium case, GPS + Cellular. The Apple Watch Ultra 2 and Ultra 3 are separate models.

Specification	Apple Watch Ultra 4	Apple Watch Ultra (49 mm, 1st generation)
Release year	2026	2022
Announcement / availability	9 / 18 September 2026 Apple	—
Case	Grade 5 titanium; sapphire front crystal Apple	—
Size	49 × 44 × 12 mm Apple	—
Weight	Natural titanium case 63 g Apple	61.3 g (without band) Apple
Display	LTPO3 OLED; 422 × 514 Apple	LTPO2 OLED always-on Retina; 410 × 502 pixels; 1185 mm² display area; up to 2000 nits LTPO lets the refresh rate drop very low, so the screen can stay on without draining the battery. 2000 nits was twice as bright as any earlier Apple Watch display. Apple
Brightness	1 nit minimum; 3000 nits peak Apple	—
Chip	S11; dual-core 64-bit Apple	S8 SiP with 64-bit dual-core processor; W3 wireless chip; U1 Ultra Wideband chip; 32 GB storage Availability of Ultra Wideband features varies by country. Apple
Storage	64 GB Apple	—
Health sensors	Electrical/optical heart; blood oxygen; temperature Apple	Electrical heart sensor (ECG); third-generation optical heart sensor; blood oxygen sensor Availability of the ECG and blood oxygen apps varies by country. 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	—
Case and glass	—	49 mm natural titanium case; flat sapphire front crystal; ceramic and sapphire back The flat front crystal is protected by a raised titanium edge. Apple
Location and navigation	—	Dual-frequency GPS (L1 and L5), GLONASS, Galileo, QZSS, BeiDou; compass; always-on altimeter The L5 signal helps separate signals reflected by tall buildings and trees; Apple called it the most accurate GPS of any Apple Watch at the time. Apple
Diving and water	—	WR100 (ISO 22810); dive-ready to 40 metres (EN 13319); water temperature sensor and depth gauge; IP6X dust Apple points to the third-party Oceanic+ app for recreational scuba diving to 40 metres; the watch itself is not certified as a dive computer. Apple
Safety	—	86-decibel emergency siren; Fall and Crash Detection (high-g accelerometer up to 256 g); Emergency SOS The siren plays two distinct patterns, one signalling distress and one mimicking SOS. Apple
Connectivity	—	LTE and UMTS; Wi-Fi 802.11b/g/n 2.4 and 5 GHz; Bluetooth 5.3 With cellular, the watch can make calls and get messages without the phone nearby; carrier support is required. Apple
Battery	—	Up to 36 hours; up to 18 hours with LTE; USB-C magnetic fast-charging cable Runtime depends on display, workout and cellular use; using LTE away from the phone drains the battery noticeably faster. Apple
Low-power setting	—	Up to 60 hours Apple announced that this setting would arrive in software after launch, in autumn 2022; it extends runtime by taking some readings less often. Apple
Operating temperature	—	−20 °C to 55 °C on the wrist Apple
Compatibility	—	iPhone 8 or later with iOS 16 or later The watch can only be set up and used with an iPhone; it does not pair with Android phones. Apple