Amazfit GTS 4 vs Fitbit Inspire 3
The Verdict
Amazfit GTS 4 and Fitbit Inspire 3 target different priorities at distinct price points. Amazfit's 1.75-inch AMOLED display with 390x450 resolution provides significantly better readability and always-on capability compared to Inspire 3's tiny 0.73-inch screen. GTS 4's dual-band GPS makes it suitable for serious runners and outdoor enthusiasts, while Inspire 3 lacks GPS entirely, requiring phone connectivity for route tracking. Battery life slightly favors Inspire 3 (10 days vs. 8 days), and it includes skin temperature monitoring. However, Amazfit's premium aluminum build, larger form factor, and comprehensive navigation features justify the $100 premium for fitness-focused users. Inspire 3 excels as a budget fitness tracker for basic health monitoring and step counting. Choose GTS 4 if you want a capable smartwatch with real fitness features; pick Inspire 3 if you need simple activity tracking at minimal cost.
Who Should Buy
Buy the Amazfit GTS 4 if…
- →Large 1.75" AMOLED display is bright and vivid for the price
- →Dual-band GPS provides accurate outdoor tracking rivaling Garmin
- →Ultra-lightweight at 27 g — one of the lightest smartwatches available
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
Pros
- Large 1.75" AMOLED display is bright and vivid for the price
- Dual-band GPS provides accurate outdoor tracking rivaling Garmin
- Ultra-lightweight at 27 g — one of the lightest smartwatches available
- 8-day battery comfortably outlasts Apple Watch and Galaxy Watch
- 150+ sport modes cover virtually every activity
Cons
- Zepp OS has a very limited third-party app ecosystem
- No NFC for contactless payments in most markets
- Notification interaction is basic — can't reply to messages
- Build quality feels less premium than Apple or Samsung at this price
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 | Fitbit Inspire 3 |
|---|---|---|
| Software | Zepp OS 2.0 | Fitbit OS |
| Body | ||
| Weight | 27 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 8 days (typical usage) | Up to 10 days |
| Display | ||
| Size | 42mm (1.75 inches) | 0.73 inches |
| Type | AMOLED | AMOLED |
| Always-on display | ||
| Resolution | 390 x 450 | 256 x 124 |
| Processor | ||
| Chipset | Huami custom processor | Fitbit 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 GTS 4 or the Fitbit Inspire 3.