Amazfit T-Rex Ultra vs Google Pixel Watch (1st Gen)
The Verdict
Amazfit T-Rex Ultra and Google Pixel Watch represent different design philosophies for smartwatches. Amazfit prioritizes extreme durability and battery longevity, delivering up to 20 days of typical use and 80 hours of GPS tracking, making it ideal for outdoor enthusiasts and athletes. Its rugged construction with stainless steel bezel and fiber-reinforced polymer withstands 10 ATM water resistance rated for free-diving. Google Pixel Watch excels in smartwatch integration with full Wear OS 3.5 support, superior app ecosystem, NFC payments, and advanced health features including ECG capability. However, it charges daily and weighs merely 36 grams compared to Amazfit's 89 grams. Display quality is nearly identical with both featuring 454x450 AMOLED panels. For fitness tracking and expedition use, Amazfit T-Rex Ultra wins decisively. For daily smartwatch versatility and Google ecosystem users, Pixel Watch is superior. Budget favors Amazfit at $449.99 versus Pixel Watch's $349.00, though Google offers better value for comprehensive features.
Who Should Buy
Buy the Amazfit T-Rex Ultra if…
- →Excellent 20-day battery life with always-on display
- →Dual-band six-satellite GPS for high accuracy
- →Rugged design with 15 military-grade certifications
Buy the Google Pixel Watch (1st Gen) if…
- →Beautiful domed glass design with smooth pebble-like aesthetic
- →Deep Fitbit integration for health tracking and premium features
- →Smooth Wear OS 3.5 with native Google Maps and Google Wallet
Category Scores
Pros & Cons
Amazfit T-Rex Ultra
Pros
- Excellent 20-day battery life with always-on display
- Dual-band six-satellite GPS for high accuracy
- Rugged design with 15 military-grade certifications
- Free-diving rated to 45 meters
- Offline maps with route import support
Cons
- No ECG, skin temperature, or NFC payments
- No Wi-Fi or cellular connectivity
- Zepp OS app ecosystem is limited
- Heavier than most smartwatches at 89g
- No third-party app store
Google Pixel Watch (1st Gen)
Pros
- Beautiful domed glass design with smooth pebble-like aesthetic
- Deep Fitbit integration for health tracking and premium features
- Smooth Wear OS 3.5 with native Google Maps and Google Wallet
- Accurate heart rate and SpO2 tracking with ECG support
- Lightweight and comfortable for all-day wear at 36 g
Cons
- 24-hour battery life barely lasts a full day with active use
- Thick bezels reduce the usable screen area
- Exynos 9110 is an older chip that can feel laggy
- Only one 41mm size option — too small for many users
- No offline Google Maps navigation at launch
Full Specifications
| Spec | Amazfit T-Rex Ultra | Google Pixel Watch (1st Gen) |
|---|---|---|
| Software | Zepp OS 2.0 | Wear OS 3.5 by Google |
| Body | ||
| Weight | 89 g | 36 g (without band) |
| Case material | Stainless steel bezel, fiber-reinforced polymer case | Recycled stainless steel with domed Gorilla Glass 5 |
| Water resistance | 10 ATM, ISO 22810 certified for free-diving to 45m | 5ATM |
| Health & Sensors | ||
| ECG | ||
| SpO₂ | ||
| Skin temperature | ||
| Heart rate | ||
| Sleep tracking | ||
| Battery | ||
| Battery life | Up to 20 days typical use, 80 hours GPS | Up to 24 hours |
| Display | ||
| Size | 1.39 inch | 41mm |
| Type | AMOLED | AMOLED, DCI-P3, Always-On |
| Always-on display | ||
| Resolution | 454 x 454 | 450 x 450 |
| Connectivity | ||
| GPS | ||
| NFC | ||
| Wi-Fi | ||
| Cellular | ||
| Bluetooth | 5.0 | 5.0 |
| Processor | ||
| Chipset | — | Samsung Exynos 9110 with Cortex-M33 co-processor |
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This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
Explore more in smartwatches, see all Amazfit products or all Google products. View full details for the Amazfit T-Rex Ultra or the Google Pixel Watch (1st Gen).