Amazfit T-Rex Ultra vs Apple Watch SE (1st Gen)
The Verdict
Amazfit T-Rex Ultra targets adventure enthusiasts with exceptional battery endurance (20 days vs 18 hours) and rugged durability, featuring a robust stainless steel bezel design rated for 45m free-diving. Apple Watch SE prioritizes seamless ecosystem integration with watchOS, NFC payment support, and Wi-Fi connectivity unavailable on the Amazfit. Health tracking slightly favors T-Rex Ultra with SpO2 monitoring included. Display quality leans toward Apple's superior LTPO OLED Retina technology, though T-Rex Ultra offers always-on functionality. SE's 30g aluminum construction feels more refined for daily wear, while T-Rex Ultra's 89g heft suits outdoor activities better. Pricing differs significantly at $449.99 versus $279. Choose T-Rex Ultra for weekend adventurers prioritizing battery and durability; select Apple Watch SE for iPhone users wanting daily smartwatch convenience and payment features at better value.
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 Apple Watch SE (1st Gen) if…
- →Affordable entry into the Apple Watch ecosystem with core features
- →Same large display as Series 6 — no visible compromise
- →Fall detection and emergency SOS for safety
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
Apple Watch SE (1st Gen)
Pros
- Affordable entry into the Apple Watch ecosystem with core features
- Same large display as Series 6 — no visible compromise
- Fall detection and emergency SOS for safety
- Compass and always-on altimeter for outdoor activities
- Family Setup enables use for kids without an iPhone
Cons
- No Always-On display — must raise wrist to see the time
- Older S5 chip — slower than the 2022 SE's S8
- No ECG, SpO2, or blood oxygen monitoring
- No fast charging — takes about 2.5 hours for full charge
Full Specifications
| Spec | Amazfit T-Rex Ultra | Apple Watch SE (1st Gen) |
|---|---|---|
| Software | Zepp OS 2.0 | watchOS 7 (upgradable to watchOS 10) |
| Body | ||
| Weight | 89 g | 30.49 g (40mm) / 36.2 g (44mm) |
| Case material | Stainless steel bezel, fiber-reinforced polymer case | Aluminum |
| Water resistance | 10 ATM, ISO 22810 certified for free-diving to 45m | WR50 (50m) |
| Health & Sensors | ||
| ECG | ||
| SpO₂ | ||
| Skin temperature | ||
| Heart rate | ||
| Sleep tracking | ||
| Battery | ||
| Battery life | Up to 20 days typical use, 80 hours GPS | Up to 18 hours |
| Display | ||
| Size | 1.39 inch | 40mm / 44mm |
| Type | AMOLED | LTPO OLED Retina |
| Always-on display | ||
| Resolution | 454 x 454 | 324 x 394 / 368 x 448 |
| Connectivity | ||
| GPS | ||
| NFC | ||
| Wi-Fi | ||
| Cellular | ||
| Bluetooth | 5.0 | 5.0 |
| Processor | ||
| Chipset | — | Apple S5 SiP |
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 Apple products. View full details for the Amazfit T-Rex Ultra or the Apple Watch SE (1st Gen).