Amazfit GTR 4 vs Fitbit Sense 2
The Verdict
Amazfit GTR 4 excels in battery longevity with up to 14 days of normal use versus Fitbit Sense 2's modest 6-day runtime, making it ideal for users prioritizing extended wear between charges. Fitbit Sense 2 compensates with superior health monitoring, featuring ECG and skin temperature sensors absent on the GTR 4, plus a larger 1.58-inch AMOLED display. Both offer SpO2 tracking, heart rate monitoring, and sleep analysis with identical 5 ATM water resistance. GTR 4's 466x466 resolution delivers crisper visuals despite the smaller screen. Performance-wise, GTR 4 runs Zepp OS with broader app support, while Fitbit OS emphasizes fitness integration with Fitbit Premium ecosystem. At $199, GTR 4 represents exceptional value for fitness enthusiasts prioritizing battery life. Fitbit Sense 2's $299.95 price justifies medical-grade health features but demands weekly charging. Choose GTR 4 for budget-conscious users seeking longevity; select Fitbit Sense 2 if comprehensive health tracking justifies premium pricing and frequent charging.
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 Fitbit Sense 2 if…
- →Continuous EDA sensor for all-day stress tracking
- →ECG and skin temperature tracking
- →Lightweight and comfortable for 24/7 wear
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
Fitbit Sense 2
Pros
- Continuous EDA sensor for all-day stress tracking
- ECG and skin temperature tracking
- Lightweight and comfortable for 24/7 wear
- Up to 6 days of battery life
- Built-in GPS with Google Maps and Wallet support
Cons
- Removed third-party apps and music storage from original Sense
- No Wi-Fi connectivity
- Requires Fitbit Premium for advanced insights
- Limited smartwatch functionality compared to Wear OS
- Single physical button, no rotating crown
Full Specifications
| Spec | Amazfit GTR 4 | Fitbit Sense 2 |
|---|---|---|
| Software | Zepp OS 2.0 | Fitbit OS |
| Body | ||
| Weight | 52 g (without strap) | 37.6 g |
| Case material | Aluminum alloy with stainless steel crown | Aluminum case |
| Water resistance | 5ATM | 5 ATM |
| Health & Sensors | ||
| ECG | ||
| SpO₂ | ||
| Skin temperature | ||
| Heart rate | ||
| Sleep tracking | ||
| Battery | ||
| Battery life | Up to 14 days (typical usage) | Up to 6 days, 12 hours with GPS |
| Display | ||
| Size | 46mm (1.43 inches) | 1.58 inch |
| Type | AMOLED | AMOLED |
| Always-on display | ||
| Resolution | 466 x 466 | 336 x 336 |
| Processor | ||
| Chipset | Huami custom processor | — |
| 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 Fitbit products. View full details for the Amazfit GTR 4 or the Fitbit Sense 2.