Amazfit GTS 4 vs Withings ScanWatch
The Verdict
Amazfit GTS 4 delivers a modern smartwatch experience with its vibrant 390x450 AMOLED display and snappy Zepp OS 2.0 performance, making it ideal for fitness enthusiasts who want quick app interactions and customizable watch faces. At 27 grams, it's significantly lighter and more comfortable for all-day wear compared to the ScanWatch's 58-gram stainless steel design. However, the Withings ScanWatch positions itself as a hybrid health device rather than a traditional smartwatch, featuring clinical-grade ECG capabilities that the GTS 4 lacks, plus a remarkable 30-day battery life versus the GTS 4's 8 days. The ScanWatch's analog dial with complementary PMOLED display appeals to those preferring traditional watch aesthetics, though its lack of GPS limits workout tracking versatility. Choose the Amazfit GTS 4 if you prioritize vibrant display quality, lighter weight, extensive app ecosystem, and frequent charging isn't a concern. Select the Withings ScanWatch if medical-grade health monitoring and exceptional battery endurance matter more than feature richness, accepting the heavier build and display limitations as worthwhile trade-offs.
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 Withings ScanWatch if…
- →30-day battery life eliminates daily or weekly charging
- →Medical-grade ECG and SpO2 monitoring for clinical health insights
- →Classic analog watch design looks professional and stylish
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
Withings ScanWatch
Pros
- 30-day battery life eliminates daily or weekly charging
- Medical-grade ECG and SpO2 monitoring for clinical health insights
- Classic analog watch design looks professional and stylish
- Sapphire crystal is highly scratch resistant
- Sleep tracking with breathing disturbance detection
Cons
- Tiny PMOLED screen limits smart features and notifications
- No GPS — relies on phone for location tracking
- No NFC for contactless payments
- Very limited smart features compared to Apple Watch or Wear OS
- No third-party app support
Full Specifications
| Spec | Amazfit GTS 4 | Withings ScanWatch |
|---|---|---|
| Software | Zepp OS 2.0 | Withings proprietary (Health Mate app) |
| Body | ||
| Weight | 27 g (without strap) | 58 g (42mm) |
| Case material | Aluminum alloy | Stainless steel with sapphire crystal |
| Water resistance | 5ATM | 5ATM (50m) |
| Health & Sensors | ||
| ECG | ||
| SpO₂ | ||
| Skin temperature | ||
| Heart rate | ||
| Sleep tracking | ||
| Battery | ||
| Battery life | Up to 8 days (typical usage) | Up to 30 days |
| Display | ||
| Size | 42mm (1.75 inches) | 42mm |
| Type | AMOLED | Hybrid analog + PMOLED |
| Always-on display | ||
| Resolution | 390 x 450 | Analog dial with PMOLED digital display |
| Processor | ||
| Chipset | Huami custom processor | Withings custom low-power SoC |
| Connectivity | ||
| GPS | ||
| NFC | ||
| Wi-Fi | ||
| Cellular | ||
| Bluetooth | 5.0 | 5.0 |
Want to compare a third product?
Add another product for a 3-way comparison.
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 Withings products. View full details for the Amazfit GTS 4 or the Withings ScanWatch.