Amazfit GTR 4 vs Apple Watch Series 6
The Verdict
Amazfit GTR 4 and Apple Watch Series 6 serve distinctly different user needs. GTR 4 excels with exceptional battery longevity,14 days normal use versus Series 6's 18 hours,making it ideal for fitness enthusiasts who prioritize extended wear between charges. Series 6 counters with superior display technology (LTPO OLED Retina vs AMOLED), faster performance via Apple S6 SiP, comprehensive health monitoring including ECG capability, and deeper ecosystem integration for iPhone users. GTR 4's Zepp OS offers satisfactory functionality with GPS, NFC, and SpO2 tracking at half the price. Series 6 provides cellular connectivity options, premium materials, and watchOS 11+ support for long-term software updates. Budget-conscious users valuing battery life should choose GTR 4; those deeply invested in Apple's ecosystem or needing advanced health features will find Series 6's premium experience justified despite the doubled price point.
Who Should Buy
Buy the Amazfit GTR 4 if…
- →Large 1.43" AMOLED display is sharp and vivid with always-on option
- →Dual-band GPS rivals Garmin for outdoor tracking accuracy
- →14-day battery is outstanding for an AMOLED smartwatch
Buy the Apple Watch Series 6 if…
- →First Apple Watch with blood oxygen (SpO2) monitoring
- →Always-On display is 2.5x brighter outdoors than Series 5
- →U1 chip enables precise Find My features and car key unlock
Category Scores
Pros & Cons
Amazfit GTR 4
Pros
- Large 1.43" AMOLED display is sharp and vivid with always-on option
- Dual-band GPS rivals Garmin for outdoor tracking accuracy
- 14-day battery is outstanding for an AMOLED smartwatch
- Built-in speaker and microphone for Bluetooth phone calls
- 150+ sport modes with auto-detection for common activities
Cons
- Zepp OS app ecosystem is extremely limited
- No NFC for contactless payments in most regions
- Cannot reply to notifications — view and dismiss only
- Build quality and software polish trail Apple and Samsung
Apple Watch Series 6
Pros
- First Apple Watch with blood oxygen (SpO2) monitoring
- Always-On display is 2.5x brighter outdoors than Series 5
- U1 chip enables precise Find My features and car key unlock
- S6 chip is 20% faster than S5 — noticeably snappier
- Multiple premium case materials including titanium and blue aluminum
Cons
- 18-hour battery still requires daily charging
- SpO2 readings are for wellness only — not medical grade
- No keyboard input — smaller bezels came in Series 7
- Charging speed is slow compared to Series 7+
Full Specifications
| Spec | Amazfit GTR 4 | Apple Watch Series 6 |
|---|---|---|
| Software | Zepp OS 2.0 | watchOS 7 (upgradable to watchOS 11+) |
| Body | ||
| Weight | 52 g (without strap) | 30.5 g (40mm Al) / 36.2 g (44mm Al) |
| Case material | Aluminum alloy with stainless steel crown | Aluminum / Stainless Steel / Titanium |
| Water resistance | 5ATM | WR50 (50m) |
| Health & Sensors | ||
| ECG | ||
| SpO₂ | ||
| Skin temperature | ||
| Heart rate | ||
| Sleep tracking | ||
| Battery | ||
| Battery life | Up to 14 days (typical usage) | Up to 18 hours |
| Display | ||
| Size | 46mm (1.43 inches) | 40mm / 44mm |
| Type | AMOLED | LTPO OLED Always-On Retina |
| Always-on display | ||
| Resolution | 466 x 466 | 324 x 394 / 368 x 448 |
| Processor | ||
| Chipset | Huami custom processor | Apple S6 SiP |
| Connectivity | ||
| GPS | ||
| NFC | ||
| Wi-Fi | ||
| Cellular | ||
| Bluetooth | 5.0 | 5.0 |
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 GTR 4 or the Apple Watch Series 6.