Google Pixel Watch 3 vs Google Pixel Watch 4

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Pixel Watch 3 compared with Pixel Watch 4

	GooglePixel Watch 3	GooglePixel Watch 4
Overview
Released
Released	September 2024	October 2025
Display
Case sizes
Case sizes	41 mm or 45 mm	41 mm or 45 mm
Panel
Panel	LTPO OLED	LTPO OLED
Peak brightness
Peak brightness	2,000 nits	3,000 nits (better)
Always-on display
Always-on display	Yes	Yes
Display detail
Display detail	Actua display; 320 ppi AMOLED LTPO display with DCI-P3 colour; 1–60 Hz; 1 nit minimum brightness (always-on display)	Actua 360 domed AMOLED LTPO display; 320 ppi; DCI-P3 colour; 1–60 Hz; 1 nit minimum brightness (always-on display)
Screen protection
Screen protection	Custom 3D Corning Gorilla Glass 5	Custom 3D Corning Gorilla Glass 5
Health and fitness
ECG
ECG	Yes	Yes
Blood oxygen
Blood oxygen	Yes	Yes
Skin temperature
Skin temperature	Yes	Yes
Sleep apnoea alerts
Sleep apnoea alerts	No	No
High blood pressure alerts
High blood pressure alerts	No	No
Body composition
Body composition	No	No
Fall detection
Fall detection	Yes	Yes
Crash detection
Crash detection	Yes	Yes
GPS
GPS	Single-band	Dual-band (L1 and L5)
Water resistance
Water resistance	50 m	50 m
Sensors
Sensors	Multi-path optical heart rate sensor; multipurpose electrical sensors for the ECG app; red and infrared sensors for SpO2; skin temperature sensor; electrical sensor for skin conductance (cEDA); compass; altimeter; barometer; magnetometer; 3-axis accelerometer; gyroscope; ambient light sensor	Multi-path optical heart rate sensor; multipurpose electrical sensors for the ECG app; red and infrared sensors for SpO2; far-field skin temperature sensor; electrical sensor for skin conductance (cEDA); compass; altimeter; barometer; magnetometer; 3-axis accelerometer; gyroscope; ambient light sensor
Health features
Health features	ECG app; SpO2 and skin temperature; body response tracking (cEDA); sleep and activity tracking with Fitbit	ECG app and irregular heart rhythm notifications; SpO2, breathing rate, resting heart rate and skin temperature trends; sleep and stress tracking; body response tracking (cEDA)
Fitness features
Fitness features	–	Dual-frequency GPS; workout tracking with real-time guidance; Google Health Coach with a Google Health Premium subscription
Safety features
Safety features	Emergency SOS; Fall Detection; Car Crash Detection; Loss of Pulse Detection; Safety Signal; Safety Check; Emergency Sharing	Emergency SOS; Fall Detection; Car Crash Detection; Loss of Pulse Detection; Safety Check; Emergency Sharing; Satellite SOS on LTE models in supported countries, including the UK
Battery and connections
Battery life (maker's claim)
Battery life (maker's claim)	Up to 24 hours	Up to 40 hours
In low-power mode
In low-power mode	Up to 36 hours	Up to 3 days
Mobile data option
Mobile data option	Yes	Yes
Works with
Works with	Android	Android
Chip
Chip	Snapdragon W5 Gen 1	Snapdragon W5 Gen 2
Storage
Storage	32 GB	32 GB
Battery life detail
Battery life detail	41 mm has 307 mAh and 45 mm has 420 mAh (typical); both up to 24 hours with always-on display and 36 hours in Battery Saver mode	41mm up to 30 hours with always-on display and 48 hours in Battery Saver mode (325 mAh); 45mm up to 40 hours and 72 hours in Battery Saver mode (455 mAh)
Charging
Charging	USB-C Fast Charging Cable in the box; 41 mm about 24 minutes to 50%, 35 minutes to 80% and 60 minutes to 100%; 45 mm about 28 minutes to 50%, 50 minutes to 80% and 80 minutes to 100%	Quick Charge Dock (USB-C) in the box; 41mm about 15 minutes to 50%, 25 minutes to 80% and 45 minutes to 100%; 45mm about 15 minutes to 50%, 30 minutes to 80% and 60 minutes to 100%
Connectivity
Connectivity	4G LTE and UMTS (LTE models); Bluetooth 5.3; Wi-Fi 802.11a/b/g/n/ac/ax at 2.4 GHz and 5 GHz; NFC; Ultra-wideband; GPS, Galileo, Glonass, Beidou and QZSS; works with most phones on Android 10 or newer	4G LTE and UMTS (LTE models); Bluetooth 6.0; Wi-Fi 802.11 a/b/g/n/ac/ax at 2.4GHz and 5GHz; NFC; Ultra-wideband; dual-frequency GPS (GPS, Galileo, GLONASS, BeiDou and QZSS in the UK); works with most phones on Android 11 or newer
Storage
Storage	32 GB eMMC flash; 2 GB SDRAM	32 GB eMMC flash; 2 GB SDRAM
Design
Weight (lightest version)
Weight (lightest version)	31 g	31 g
Software
Software	Wear OS	Wear OS
Case materials
Case materials	100% recycled aluminium housing; 5 ATM and IP68	100% recycled aluminium housing; 5 ATM and IP68
Size
Size	41 mm is 41 mm across and 12.3 mm high, 31 g without band; 45 mm is 45 mm across and 12.3 mm high, 37 g without band	41mm is 41 mm across and 12.3 mm high, 31 g without band; 45mm is 45 mm across and 12.3 mm high, 36.7 g without band
Bands
Bands	Active Band in fluoroelastomer with soft-touch coating, small and large included; 41 mm fits 130–210 mm wrists, 45 mm fits 150–215 mm wrists	Active Band in fluoroelastomer with soft-touch coating, small and large included; 41mm fits 130–210 mm wrists, 45mm fits 150–215 mm wrists
Colours
Colours	Matte Black with Obsidian band and Polished Silver with Porcelain band in both sizes; 41 mm also in Champagne Gold with Hazel and Polished Silver with Rose Quartz; 45 mm also in Matte Hazel with Hazel	41mm in Polished Silver with Iris or Porcelain band, Champagne Gold with Lemongrass and Matte Black with Obsidian; 45mm in Polished Silver with Porcelain, Satin Moonstone with Moonstone and Matte Black with Obsidian
In the box
In the box	Pixel Watch 3, Active Band in small and large, USB-C Fast Charging Cable, quick start guide	Pixel Watch 4, Active Band in small and large, Quick Charge Dock, quick start guide