Amazfit T-Rex Ultra vs TicWatch Pro 5 Enduro
The Verdict
Both rugged smartwatches excel in endurance, but serve different priorities. Amazfit T-Rex Ultra delivers exceptional 20-day battery life with a heavier, more durable stainless steel construction rated for 10 ATM water resistance and free-diving to 45 meters. TicWatch Pro 5 Enduro counters with superior connectivity (NFC, WiFi, dual AMOLED+FSTN display) and Wear OS 3.5's broader app ecosystem, though its 45-day battery requires switching to Essential Mode. T-Rex Ultra's 1.39-inch AMOLED display and Zepp OS offer cleaner fitness focus, while TicWatch's dual-screen design and 2GB RAM enable mobile payments and richer smartwatch functionality. At $100 less, TicWatch provides better value for users wanting a complete wearable platform. However, for adventure athletes prioritizing extreme durability and minimal charging, T-Rex Ultra's premium build and 80-hour GPS endurance justify the premium. Choose TicWatch for daily versatility; choose T-Rex for expedition-grade reliability.
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 TicWatch Pro 5 Enduro if…
- →Dual display system — 90-hour smart mode or 45-day essential mode
- →Full Wear OS with Google Play Store, Maps, and Google Assistant
- →Snapdragon W5+ chip delivers smooth performance for a Wear OS watch
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
TicWatch Pro 5 Enduro
Pros
- Dual display system — 90-hour smart mode or 45-day essential mode
- Full Wear OS with Google Play Store, Maps, and Google Assistant
- Snapdragon W5+ chip delivers smooth performance for a Wear OS watch
- NFC for Google Wallet and contactless payments
- Military-grade MIL-STD-810H durability
Cons
- No ECG monitoring despite the health-focused positioning
- Bulky at 48 mm — too large for small wrists
- Wear OS 3.5 — not the latest Wear OS 4
- Mobvoi's app ecosystem is less polished than Samsung or Google
Full Specifications
| Spec | Amazfit T-Rex Ultra | TicWatch Pro 5 Enduro |
|---|---|---|
| Software | Zepp OS 2.0 | Wear OS 3.5 |
| Body | ||
| Weight | 89 g | 44.3 g (without strap) |
| Case material | Stainless steel bezel, fiber-reinforced polymer case | Stainless steel and high-strength nylon |
| 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 90 hrs (Smart Mode), 45 days (Essential Mode) |
| Display | ||
| Size | 1.39 inch | 48 mm (1.43 inches) |
| Type | AMOLED | AMOLED + FSTN dual display |
| Always-on display | ||
| Resolution | 454 x 454 | 466 x 466 |
| Connectivity | ||
| GPS | ||
| NFC | ||
| Wi-Fi | ||
| Cellular | ||
| Bluetooth | 5.0 | 5.2 |
| Processor | ||
| RAM | — | 2 GB |
| Chipset | — | Qualcomm Snapdragon W5+ Gen 1 |
Related Comparisons
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 Mobvoi products. View full details for the Amazfit T-Rex Ultra or the TicWatch Pro 5 Enduro.