View on Amazon
Ring vs Tracker
Compare screen-free rings with wrist fitness trackers for sleep comfort, workout feedback, sizing, battery life, and when a smartwatch is the fallback.
Google GA10850-US 45mm Satin Moonstone Aluminum Case, Moonstone Active Band, 40-Hour Battery Pixel Watch 4 (45mm) - Android Smartwatch with Heart Rate and Sleep Tracking - 40-Hour Battery - Fitness Tracking - AI - Satin Moonstone Aluminum Case - Moonstone Active Band - Wi-Fi
Available Options
Current
45mm Satin Moonstone Aluminum Case, Moonstone Active Band, 40-Hour Battery
Amazon
€344.38
Available to order
Price history by variant
Volatility: Medium
45mm Satin Moonstone Aluminum Case, Moonstone Active Band, 40-Hour Battery
0%
€344.38
€292.72 — €344.38
41mm Matte Black Aluminum Case, Obsidian Active Band, 30-Hour Battery
-17.1%
€249.67
€249.67 — €301.33
41mm Polished Silver Aluminum Case, Iris Active Band, 30-Hour Battery
0%
€301.33
€249.67 — €301.33
45mm Matte Black Aluminum Case, Obsidian Active Band, 40-Hour Battery
-20%
€275.50
€275.50 — €344.38
Features
- Android smartwatch with Google AI assistant
- 40-hour battery life with fast charging
- Heart rate and sleep tracking with health metrics
- 40+ exercise modes and GPS tracking
- 50-meter water resistance and durable design
- Compatible with Android devices and accessories
Product details
General specs
- Brand: Google
- Model: GA10850-US
- Battery Life: 1.67 days
- Connectivity: Wi-Fi
- Display Type: Actua 360 domed display
- Fast Charging: 15 hours of battery in 15 minutes or less
- Health Sensors: Heart Rate, SpO2
- OS Compatibility: Android
- Water Resistance: 5 ATM
- Emergency Features: Loss of Pulse Detection
- Display Increase Size: 10% larger than Pixel Watch 3
- Brightness Display Increase: 50% brighter than Pixel Watch 3
If you are interested in more details, you can find full information on the seller's page.
Amazon live offers
?
Top live offer is the offer currently shown first for this Amazon listing. It may differ from the lowest available price.
FBA means the order is fulfilled by Amazon, even when the seller is a third-party merchant.
Shippable means the offer is listed as available for delivery on Amazon.
New, Used and Refurbished describe the item condition shown for that Amazon offer.
Top live offer
€344.38
Free shipping
New
Sold by Amazon
FBA
Shippable
Used from
€272.05
Only from Used + Shippable live offers
Used offers
Used - Acceptable
· Third-party seller
· FBA · Shippable
€272.05
Used - Like New
· Third-party seller
· FBA · Shippable
€327.16
Offers updated: 8/31/26
Affiliate link. As an Amazon Associate I earn from qualifying purchases.
Price History for seller Amazon
Shipping options
Delivery to 
United States
United States
Available
For the active professional who juggles work, workouts, and family time, this smartwatch is your daily companion. It's not just a fitness tracker; it's a tool for managing a busy life without missing a beat.
The 40-hour battery means you can wear it from morning meetings to evening runs without constant charging. The heart rate tracking is so precise you'll notice subtle changes during stress or sleep, helping you tune into your body's signals. With Gemini AI built in, you get quick replies to texts while on the go, so you stay connected without pulling out your phone.
Compatible with Android devices, it lets you control your Nest Cam feed or Pixel Camera directly from your wrist. The durable aluminum case and water resistance up to 50 meters ensure it keeps up with your active lifestyle, from pool laps to hiking trails.
Google GA10850-US Moonstone Android smartwatch with Google AI assistant
€344.38
Affiliate link. As an Amazon Associate I earn from qualifying purchases.
When this device makes sense
Product confidence
Reviews
There are no text reviews yet. If you have experience using this product, please leave a review. It will help other people decide whether this product is right for them.