Google · Pixel Watch

Pixel Watch 4

Released October 2025

Google's 2025 round Wear OS smartwatch in 41 mm and 45 mm sizes, with health tracking, dual-frequency GPS and a domed, repairable design.

Model history · 2 models, 2024–2025
  1. 2024Pixel Watch 3Compare
  2. 2025Pixel Watch 4
Type
Smart and sports
Sizes
41, 45 mm
Movement
–
Power reserve
–
Display
LTPO OLED
Battery
40 h
Water
50 m
GPS
Dual-band
Weight
31 g

What reviewers say

Reviewers agree it is the Android watch to beat, with a brighter domed display, longer battery life, fast charging, thorough health tracking and a more repairable design. The common complaints are a new charger that older Pixel Watch chargers don't replace and Gemini features that are hit or miss; TechRadar found heart rate tracking a little less accurate than the Apple Watch's.

From techradar.com, theverge.com and engadget.com

Display

Case sizes
41 mm or 45 mm
Panel
LTPO OLED
Peak brightness
3,000 nits
Always-on display
Yes
Display detail
Actua 360 domed AMOLED LTPO display; 320 ppi; DCI-P3 colour; 1–60 Hz; 1 nit minimum brightness (always-on display)
Screen protection
Custom 3D Corning Gorilla Glass 5

Health and fitness

ECG
Yes
Blood oxygen
Yes
Skin temperature
Yes
Sleep apnoea alerts
No
High blood pressure alerts
No
Body composition
No
Fall detection
Yes
Crash detection
Yes
GPS
Dual-band (L1 and L5)
Water resistance
50 m
Sensors
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
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
Dual-frequency GPS; workout tracking with real-time guidance; Google Health Coach with a Google Health Premium subscription
Safety features
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)
Up to 40 hours
In low-power mode
Up to 3 days
Mobile data option
Yes
Works with
Android
Chip
Snapdragon W5 Gen 2
Storage
32 GB
Battery life detail
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
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
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
32 GB eMMC flash; 2 GB SDRAM

Design

Weight (lightest version)
31 g
Software
Wear OS
Case materials
100% recycled aluminium housing; 5 ATM and IP68
Size
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
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
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
Pixel Watch 4, Active Band in small and large, Quick Charge Dock, quick start guide

Pros and cons

Pros

  • Up to 40 hours of battery life (45mm) and 15 hours of use from 15 minutes of charging
  • Dual-frequency GPS, ECG, SpO2, skin temperature and Loss of Pulse Detection
  • Replaceable battery and display, a first for Pixel Watch

Cons

  • Doesn't work with iPhones
  • 32 GB of storage, half the Pixel Watch 5's
  • Google Health Coach requires a Google Health Premium subscription

Closest rivals

Model
TypeSizesMovementPower reserveDisplayBatteryWaterGPSWeightReleased
Smart and sports40, 44 mm––OLED30 h50 mDual-band30 gJul 2025
Smart and sports46 mm––OLED30 h50 mDual-band63.5 gJul 2025
Smart and sports41, 45 mm––LTPO OLED40 h50 mDual-band31 gAug 2026

Previous model: Pixel Watch 3. Newer model: Pixel Watch 5.

Sources

  1. store.google.com/gb/product/pixel_watch_4_specs
  2. support.google.com/googlepixelwatch/answer/12651869
  3. store.google.com/gb/product/pixel_watch_4
  4. store.google.com/gb/config/pixel_watch_4
  5. blog.google/products-and-platforms/devices/pixel/pixel-watch-4
  6. support.google.com/googlepixelwatch/answer/12663810
  7. support.google.com/googlepixelwatch/answer/16407554
  8. support.google.com/googlehealth/answer/14236718
  9. support.google.com/googlehealth/answer/15250403

Photo: Google — official press gallery; Active_Porcelain_Silver 3.png; The Silver Pixel Watch 4, 41mm, with Active band in Porcelain.

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