Amazfit GTS 4 Mini vs Fitbit Inspire 3
The Verdict
Both watches deliver solid fitness tracking at the $99 price point, but they serve different priorities. Amazfit GTS 4 Mini features a larger 42mm AMOLED always-on display (336 x 384 resolution) and includes built-in GPS for independent route tracking, plus exceptional 15-day battery life. Fitbit Inspire 3 weighs only 20g making it lighter and more comfortable for all-day wear, adds skin temperature monitoring for cycle tracking, and relies on smartphone GPS. Display quality favors Amazfit with its always-on capability, while Fitbit's integration with Google Health ecosystem appeals to Android users. Inspire 3 reaches 10 days between charges versus Amazfit's impressive 15 days. For fitness enthusiasts wanting comprehensive independent tracking with longer battery life, Amazfit GTS 4 Mini edges ahead. However, those prioritizing lightweight comfort and deep health insights may prefer Fitbit Inspire 3's smaller form factor.
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 Fitbit Inspire 3 if…
- →10-day battery life — charge once and forget for well over a week
- →Color AMOLED display is a huge upgrade over Inspire 2's grayscale
- →Ultra-lightweight at 20 g — perfect for sleep tracking
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
Fitbit Inspire 3
Pros
- 10-day battery life — charge once and forget for well over a week
- Color AMOLED display is a huge upgrade over Inspire 2's grayscale
- Ultra-lightweight at 20 g — perfect for sleep tracking
- SpO2 and skin temperature sensors at just $99
- 5ATM water resistance for swimming
Cons
- No built-in GPS — relies on phone GPS for outdoor tracking
- No NFC — cannot use Fitbit Pay
- Tiny screen limits notification readability
- Best health insights locked behind Fitbit Premium subscription
- No always-on display option
Full Specifications
| Spec | Amazfit GTS 4 Mini | Fitbit Inspire 3 |
|---|---|---|
| Software | Zepp OS 2.0 | Fitbit OS |
| Body | ||
| Weight | 31.2 g (without strap) | 20 g |
| Case material | Aluminum alloy | Plastic resin |
| Water resistance | 5ATM | 5ATM |
| Health & Sensors | ||
| ECG | ||
| SpO₂ | ||
| Skin temperature | ||
| Heart rate | ||
| Sleep tracking | ||
| Battery | ||
| Battery life | Up to 15 days (typical use) | Up to 10 days |
| Display | ||
| Size | 42mm | 0.73 inches |
| Type | AMOLED Always-On | AMOLED |
| Always-on display | ||
| Resolution | 336 x 384 | 256 x 124 |
| Processor | ||
| Chipset | Huami custom SoC | Fitbit custom processor |
| Connectivity | ||
| GPS | ||
| NFC | ||
| Wi-Fi | ||
| Cellular | ||
| Bluetooth | 5.2 | 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 GTS 4 Mini or the Fitbit Inspire 3.