Amazfit GTS 4 Mini vs Apple Watch Ultra (1st Gen)
The Verdict
Amazfit GTS 4 Mini delivers exceptional value for casual fitness tracking at $99, featuring a lightweight 31.2g aluminum design, 15-day battery life, and core health monitoring including heart rate and SpO2 via Zepp OS 2.0. Apple Watch Ultra 1st Gen commands an $800 premium, justified by comprehensive health features: ECG, skin temperature monitoring, superior 36-hour battery (60 hours in Low Power Mode), titanium construction rated for scuba diving to 40m, and full ecosystem integration with iPhone and Apple services. Display quality favors Ultra with larger 49mm LTPO OLED versus GTS 4 Mini's 42mm AMOLED. Ultra's connectivity advantages include cellular, WiFi, and NFC, enabling standalone functionality. For budget-conscious users prioritizing essential fitness tracking and exceptional battery longevity, GTS 4 Mini excels. Apple Watch Ultra suits those invested in Apple's ecosystem demanding professional-grade durability, comprehensive health analytics, and always-on connectivity. Consider your ecosystem and budget carefully. GTS 4 Mini wins value decisively, while Ultra justifies premium positioning for power users.
Who Should Buy
Buy the Amazfit GTS 4 Mini if…
- →15-day battery life is exceptional for an AMOLED smartwatch
- →Very affordable at just $99 with solid fitness features
- →Lightweight at 31.2 g — comfortable for 24/7 wear and sleep tracking
Buy the Apple Watch Ultra (1st Gen) if…
- →Titanium case is exceptionally durable for extreme sports and diving
- →36-hour battery life (60 hrs in Low Power Mode) is longest for Apple Watch
- →2000-nit peak brightness is readable in any outdoor condition
Category Scores
Pros & Cons
Amazfit GTS 4 Mini
Pros
- 15-day battery life is exceptional for an AMOLED smartwatch
- Very affordable at just $99 with solid fitness features
- Lightweight at 31.2 g — comfortable for 24/7 wear and sleep tracking
- Built-in GPS for outdoor activity tracking
- 120+ sport modes cover nearly every activity
Cons
- No NFC for contactless payments
- Limited smart features — no app store for third-party apps
- No Wi-Fi for faster syncing or standalone functionality
- Zepp OS has fewer integrations than Wear OS or watchOS
- Small display may be hard to read for some users
Apple Watch Ultra (1st Gen)
Pros
- Titanium case is exceptionally durable for extreme sports and diving
- 36-hour battery life (60 hrs in Low Power Mode) is longest for Apple Watch
- 2000-nit peak brightness is readable in any outdoor condition
- Dual-frequency L1+L5 GPS provides precise tracking even in canyons
- Action Button is customizable for workouts, compass, and more
Cons
- 49mm case is very large — may be too bulky for smaller wrists
- Heavy at 61.3 g compared to standard Apple Watch models
- $799 is expensive for a first-generation product
- S8 chip is the same as Series 8 — no processing advantage
- Only one 49mm size option with no smaller variant
Full Specifications
| Spec | Amazfit GTS 4 Mini | Apple Watch Ultra (1st Gen) |
|---|---|---|
| Software | Zepp OS 2.0 | watchOS 9 (upgradable to watchOS 11+) |
| Body | ||
| Weight | 31.2 g (without strap) | 61.3 g |
| Case material | Aluminum alloy | Titanium |
| Water resistance | 5ATM | WR100, EN13319 (certified for recreational scuba diving to 40m) |
| Health & Sensors | ||
| ECG | ||
| SpO₂ | ||
| Skin temperature | ||
| Heart rate | ||
| Sleep tracking | ||
| Battery | ||
| Battery life | Up to 15 days (typical use) | Up to 36 hours (60 hrs in Low Power Mode) |
| Display | ||
| Size | 42mm | 49mm |
| Type | AMOLED Always-On | LTPO OLED Always-On Retina |
| Always-on display | ||
| Resolution | 336 x 384 | 410 x 502 |
| Processor | ||
| Chipset | Huami custom SoC | Apple S8 SiP |
| Connectivity | ||
| GPS | ||
| NFC | ||
| Wi-Fi | ||
| Cellular | ||
| Bluetooth | 5.2 | 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 GTS 4 Mini or the Apple Watch Ultra (1st Gen).