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Matte black aluminum smartwatch with obsidian band, domed display

Google

Google Pixel Watch 4 41mm Matte Black Aluminum Obsidian Active Band Wi-Fi

SKU CH-W820-WV0CB

Android smartwatch with heart-rate and sleep tracking, dual-frequency GPS, 30-hour battery, fast charging, and Gemini AI assistant

  • Actua 360 display is 10% larger and 50% brighter for clear visibility
  • Up to 30 hours battery life with 15 hours from 15 minutes fast charging
  • Gemini AI assistant delivers personalised help and quick replies on your wrist
  • 40+ exercise modes with dual-frequency GPS give accurate real-time stats
  • Advanced health tracking includes heart rate, SpO2, HRV and sleep insights

Precision Craftsmanship and AI Assistant

The Google Pixel Watch 4 is a 41mm Android smartwatch with a Matte Black Aluminum case and Obsidian Active Band. It features the built-in Gemini AI assistant for personalized help and quick replies. The device connects via Wi-Fi and is designed for users who want comprehensive health and fitness tools on their wrist.

Actua 360 Display and Battery Life

The Actua 360 domed display is 10% larger and 50% brighter than the previous model with scratch-resistant Gorilla Glass. Battery life reaches up to 30 hours or 48 hours in Battery Saver mode. The side charging dock delivers 15 hours of use in 15 minutes or less.

Health Tracking and Exercise Modes

High-precision dual-frequency GPS provides accurate route tracking for runs and hikes. The watch offers 40+ exercise modes with real-time stats on the wrist. Google's most accurate heart rate tracking monitors SpO2, HRV, and sleep insights, while Loss of Pulse Detection adds a critical safety layer.

How it compares

Measured against everything we stock in Smartwatches & Wearables, at today’s prices. Recalculated every night.

Price $350.99
Pricier than about 91% of the 2,527 comparable items (median $44.99).

Specifications

No published specifications for this item yet.

Questions about this item

Will the 41 mm case sit comfortably next to a traditional 40 mm watch on the same wrist?

The 41 mm case is only 1 mm wider than a classic 40 mm size, so both watches share nearly identical wrist presence and will not feel unbalanced when worn together.

How can I confirm the Actua 360 display and dual-frequency GPS are active after the first sync?

Open the display settings to verify the 360-degree always-on mode is enabled, then start an outdoor workout — the workout summary will show a dual-frequency GPS lock indicator once the route is recorded.

Does the box include the side charging dock and the Obsidian Active Band, or must I buy either separately?

The Matte Black Aluminum case ships with the Obsidian Active Band already attached and the new side charging dock in the box, so no extra purchase is needed for either item.

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