Apple Watch Series 12 / Apple Watch Ultra (49 mm, 1st generation)

Apple Watch Series 12: 42 / 46 mm · Case material options

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 Series 12	Apple Watch Ultra (49 mm, 1st generation)
Release year	2026	2022
Processor	S11; 64-bit dual-core; 4-core Neural Engine Apple	—
Storage	64 GB Apple	—
Display	Always-On Retina LTPO3 OLED; 326 ppi; 2000 nits peak, 1 nit minimum; 46 mm: 416 × 496; 42 mm: 374 × 446 LTPO3 drops to 1 Hz in Always-On mode to save power. 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
Cover glass	Aluminium: Ceramic Shield 2; titanium/ceramic: sapphire Apple	—
Case and material	42 / 46 mm; aluminium, titanium or ceramic Ceramic cases are slightly larger and thicker (9.85 mm); aluminium and titanium are 9.7 mm. Apple	—
Rated battery life	Up to 24 hours normal use; up to 38 hours Low Power Mode; up to 10 hours workout tracking Apple's test profile; actual use varies. Apple	—
Rated charging time	About 80% in 30 minutes; 15 minutes gives up to 12 hours of normal use Apple measured these with a 20 W adapter that is not included; a USB-C fast-charging cable is in the box. Apple	—
Sensors	Second-generation electrical and always-on optical heart sensors; blood oxygen; temperature; compass; always-on altimeter; high-g accelerometer; depth gauge to 6 m; water temperature Apple	—
Health features	ECG; irregular rhythm and high/low heart rate notifications; hypertension and sleep apnoea notifications; sleep score; Vitals; Readiness Some health features are limited by country and age; blood oxygen and temperature are not for medical use. Apple	—
Weight	46 mm aluminium GPS 39.5 g; titanium 44.9 g; 42 mm aluminium GPS 32.2 g; titanium 36.5 g Apple	61.3 g (without band) Apple
Durability	50 m water resistance (ISO 22810:2010); IP6X dust For swimming and snorkelling to 6 m, not scuba diving. Resistance can diminish over time. Apple	—
Connectivity	Wi-Fi 4 (2.4 and 5 GHz); Bluetooth 5.3; second-generation UWB; multi-constellation GPS; RedCap 5G on cellular models Apple	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
Compatibility	watchOS 27; iPhone 11 or later (including iPhone SE 2nd generation or later) running iOS 27 Apple	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
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
Chip	—	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
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
Health sensors	—	Electrical heart sensor (ECG); third-generation optical heart sensor; blood oxygen sensor Availability of the ECG and blood oxygen apps varies by country. 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
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