Google Pixel Watch 4 (41 mm, Wi-Fi) / Apple Watch Series 8 (45 mm, GPS)

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

Apple Watch Series 8 (45 mm, GPS): Apple Watch Series 8, 45 mm aluminium case, GPS model. The 41 mm case, GPS + Cellular and stainless steel versions are separate models; weight and screen size differ.

Specification	Google Pixel Watch 4 (41 mm, Wi-Fi)	Apple Watch Series 8 (45 mm, GPS)
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	—
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	Always-On Retina LTPO OLED; 396 × 484 pixels; 1143 sq mm display area; up to 1000 nits The LTPO panel can lower its refresh rate a lot, so the screen stays on dimmed when the wrist is down. 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	—
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	L1 GPS, GLONASS, Galileo, QZSS and BeiDou; compass; always-on altimeter This is single-frequency (L1) GPS; drift between tall buildings can be higher than on dual-frequency models. Apple
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	Wi-Fi 802.11b/g/n 2.4 and 5 GHz; Bluetooth 5.3 Apple
Durability	5 ATM; IP68 5 ATM suits shallow-water activities like swimming, not diving or high-speed water sports. Google	Water resistant to 50 metres under ISO 22810:2010; IP6X dust; ceramic and sapphire crystal back Suitable for shallow-water activities in a pool or the sea; not for scuba diving, waterskiing or high-velocity water. Apple
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	Requires iPhone 8 or later with iOS 16 or later It cannot be used with Android phones. Apple
Band fit	Small 130–175 mm, Large 165–210 mm wrist Google	—
Chip	—	S8 SiP with 64-bit dual-core processor; W3 wireless chip; U1 (Ultra Wideband) Ultra Wideband is used for close-range location with an iPhone; availability varies by region. Apple
Health sensors	—	Blood oxygen sensor; electrical heart sensor (ECG app); third-generation optical heart sensor The Blood Oxygen app is not for medical use. The ECG app is not intended for people under 22 and may not be available in every country. Apple
Motion and safety	—	High-g accelerometer up to 256 g (Fall Detection and Crash Detection); high dynamic range gyroscope; Emergency SOS; international emergency calling On the GPS model, Emergency SOS needs a nearby iPhone or Wi-Fi Calling; international emergency calling works only on cellular models. Apple
Storage	—	32 GB Apple
Battery and charging	—	Up to 18 hours; built-in lithium-ion battery; USB-C magnetic fast charging cable Apple’s 18-hour figure is based on 90 time checks, 90 notifications, 45 minutes of app use and a 60-minute workout with music; sleep tracking is not part of that scenario. Apple
Size and weight	—	45 × 38 × 10.7 mm; aluminium GPS: 38.8 g Apple
Colours	—	Aluminium: Midnight, Starlight, Silver, (PRODUCT)RED Apple