Google Pixel Watch 4 (41 mm, Wi-Fi) / Apple Watch Ultra (49 mm, 1st generation)

Google Pixel Watch 4 (41 mm, Wi-Fi): 41 mm Wi-Fi (GA10840-US) · Polished Silver aluminium case

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	Google Pixel Watch 4 (41 mm, Wi-Fi)	Apple Watch Ultra (49 mm, 1st generation)
Release year	2025	2022
Case	41 mm, 100% recycled aluminium; 12.3 mm height Google	—
Weight	31.0 g (without band) The 45 mm model weighs 36.7 g. Google	61.3 g (without band) Apple
Display	Curved Actua 360 AMOLED LTPO; 320 ppi; DCI-P3; always-on display GIGAZINE gives the 41 mm model's resolution as 426 × 426. Google	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 and refresh	Up to 3000 nits peak; 1 nit minimum in always-on mode; 1–60 Hz The ability to drop to 1 Hz reduces the battery cost of the always-on display. Google	—
Display glass	Custom 3D Corning Gorilla Glass 5 Google	—
Processor	Qualcomm Snapdragon W5 Gen 2; Cortex-M55 co-processor The co-processor handles notifications and sensor work while the screen is off without waking the main processor, saving battery. Google	—
Memory and storage	2 GB SDRAM; 32 GB eMMC Google	—
Battery	325 mAh typical; up to 30 hours with always-on display, up to 48 hours with Battery Saver The 45 mm model has a 455 mAh battery and up to 40 hours with the always-on display. Google	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
Charging	Quick Charge Dock: about 50% in 15 minutes, 80% in 25 minutes, 100% in 45 minutes The watch sits in a new side-mounted dock; earlier Pixel Watch chargers do not fit this model. Google	—
Sensors	Optical heart rate, SpO2 (red/infrared), ECG-capable electrical sensors, skin conductance (cEDA), skin temperature, compass, altimeter, barometer, accelerometer, gyroscope, ambient light ECG and some health features may be limited by country; readings are not a medical diagnosis. Google	—
Location	Dual-frequency GPS (GPS, Galileo, GLONASS) Google	—
Connectivity	Bluetooth 6.0; Wi-Fi 802.11 a/b/g/n/ac/ax (2.4 and 5 GHz); NFC; UWB This entry covers the Wi-Fi model; LTE and UMTS cellular connectivity is only on the LTE model. Google	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
Durability	5 ATM; IP68 5 ATM suits shallow-water activities like swimming, not diving or high-speed water sports. Google	—
Controls	Side button, haptic crown; Gen 3 Premium haptics Google	—
Audio	Built-in microphone and speaker Google	—
Operating system	Wear OS 6.0 Google	—
Compatibility	Android 11.0 or newer; Google Account and Pixel Watch app Some features depend on the phone's Android version and the Pixel Watch app. Google	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
Band fit	Small 130–175 mm, Large 165–210 mm wrist Google	—
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
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