Amazfit GTS 4 Mini vs Apple Watch Series 9
The Verdict
Amazfit GTS 4 Mini delivers exceptional value for basic fitness tracking at a quarter the price of Apple Watch Series 9. Its 15-day battery life vastly outpaces the Series 9's 18-hour runtime, and the 42mm AMOLED display with always-on functionality remains crisp and responsive. However, Apple Watch Series 9 dominates in comprehensive health monitoring with ECG, skin temperature, and superior always-on Retina display technology. Connectivity features heavily favor Series 9, offering NFC, WiFi, and cellular capabilities versus the Amazfit's Bluetooth-only approach. For budget-conscious buyers wanting reliable fitness and sleep tracking, GTS 4 Mini excels. For those prioritizing advanced health metrics, seamless ecosystem integration, and premium build quality, Series 9 justifies its premium positioning. Recommendation depends entirely on budget: choose Amazfit for exceptional value and battery endurance, choose Apple Watch for comprehensive health features and ecosystem synergy.
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 Series 9 if…
- →S9 chip enables on-device Siri and the new Double Tap gesture
- →Comprehensive health suite: ECG, SpO2, temperature, crash detection
- →Brightest Apple Watch display at up to 2000 nits
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 Series 9
Pros
- S9 chip enables on-device Siri and the new Double Tap gesture
- Comprehensive health suite: ECG, SpO2, temperature, crash detection
- Brightest Apple Watch display at up to 2000 nits
- Seamless deep integration with iPhone and Apple ecosystem
- Wide variety of bands and cases for personalization
Cons
- 18-hour battery life requires daily charging
- Only useful if you own an iPhone — no Android support
- Cellular model adds significant ongoing carrier cost
- Incremental upgrade over Series 8 for existing owners
Full Specifications
| Spec | Amazfit GTS 4 Mini | Apple Watch Series 9 |
|---|---|---|
| Software | Zepp OS 2.0 | watchOS 10 |
| Body | ||
| Weight | 31.2 g (without strap) | 38.7 g (aluminum) |
| Case material | Aluminum alloy | Aluminum or stainless steel |
| Water resistance | 5ATM | WR50 / EN13319 |
| Health & Sensors | ||
| ECG | ||
| SpO₂ | ||
| Skin temperature | ||
| Heart rate | ||
| Sleep tracking | ||
| Battery | ||
| Battery life | Up to 15 days (typical use) | Up to 18 hrs, up to 36 hrs Low Power Mode |
| Display | ||
| Size | 42mm | 45 mm |
| Type | AMOLED Always-On | Always-On Retina LTPO OLED |
| Always-on display | ||
| Resolution | 336 x 384 | 484 x 396 |
| Processor | ||
| Chipset | Huami custom SoC | Apple S9 SiP |
| RAM | — | 1 GB |
| Connectivity | ||
| GPS | ||
| NFC | ||
| Wi-Fi | ||
| Cellular | ||
| Bluetooth | 5.2 | 5.3 |
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 GTS 4 Mini or the Apple Watch Series 9.