Amazfit GTR 4 vs Apple Watch Ultra 2
Updated Apr 2026
The Verdict
Amazfit GTR 4 delivers exceptional value with a stunning 1.43-inch AMOLED display, capable health tracking (SpO2, heart rate, sleep), and remarkable 14-26 day battery life in a lightweight 34g aluminum package. Apple Watch Ultra 2 commands premium positioning with titanium construction, comprehensive health sensors (ECG, SpO2, skin temperature), cellular connectivity, brighter 3000-nit display, and comprehensive watchOS ecosystem integration—though battery life merely doubles the GTR 4's normal mode at 36 hours. For fitness enthusiasts and budget-conscious users prioritizing endurance and core metrics, Amazfit excels. Professionals requiring cellular independence, advanced biometrics, and seamless Apple ecosystem integration justify Ultra 2's investment. GTR 4 offers superior battery efficiency and display-to-weight ratio; Ultra 2 provides unmatched durability and feature completeness. Choose GTR 4 for value and longevity between charges; choose Ultra 2 for comprehensive health insights and ecosystem synergy.
Category Scores
Pros & Cons
Amazfit GTR 4
Pros
- Excellent 14-day battery life with always-on AMOLED display
- 150+ built-in sports modes for broad activity tracking
- Dual-band GPS with four satellite systems for accurate positioning
- Attractive round design with physical crown and quick-release bands
- Affordable at $199 with Wi-Fi and NFC for payments
Cons
- No ECG sensor or skin temperature tracking
- Zepp OS has a limited third-party app ecosystem
- Bluetooth phone calls require the Zepp app active on the phone
- Health tracking accuracy lags behind Apple, Samsung, and Garmin
Apple Watch Ultra 2
Pros
- Extremely bright 3000-nit display readable in direct sunlight
- Rugged titanium case with MIL-STD certification and dive certification to 40m
- Best-in-class battery life for an Apple Watch at up to 36 hours
- Dual-frequency precision GPS (L1 + L5) for accurate tracking
- On-device Siri processing and double-tap gesture via Apple S9 chip
Cons
- Very expensive at $799 starting price
- Only one large 49mm case size, too big for smaller wrists
- Still requires daily charging for heavy users
- No blood oxygen feature on units sold in the US (post-ban)
- Locked into the Apple ecosystem, requires an iPhone
Full Specifications
| Spec | Amazfit GTR 4 | Apple Watch Ultra 2 |
|---|---|---|
| Software | Zepp OS | watchOS 10 |
| Body | ||
| Weight | 34 g | 61.4 g |
| Case material | Aluminum alloy | Titanium |
| Water resistance | 5 ATM | WR100 (100m) + IP6X dust + EN13319 dive certified |
| Health & Sensors | ||
| ECG | ||
| SpO₂ | ||
| Skin temperature | ||
| Heart rate | ||
| Sleep tracking | ||
| Battery | ||
| Battery life | Up to 14 days normal, 26 days basic watch mode | Up to 36 hours normal use, up to 72 hours in Low Power Mode |
| Display | ||
| Size | 1.43 inch | 49mm |
| Type | AMOLED | LTPO2 OLED Always-On Retina, up to 3000 nits |
| Always-on display | ||
| Resolution | 466 x 466 | 502 x 410 |
| Processor | ||
| RAM | 1 GB | 1 GB |
| Chipset | Huangshan No.2 | Apple S9 SiP (64-bit dual-core) |
| Connectivity | ||
| GPS | ||
| NFC | ||
| Wi-Fi | ||
| Cellular | ||
| Bluetooth | 5.0 | 5.3 |
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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 Apple products. View full details for the Amazfit GTR 4 or the Apple Watch Ultra 2.