Fitbit Versa 4 vs Withings ScanWatch
The Verdict
Fitbit Versa 4 and Withings ScanWatch target different smartwatch philosophies. Versa 4 offers a traditional touchscreen experience with 1.58-inch AMOLED display, built-in GPS, NFC for contactless payments, and comprehensive health tracking including ECG, SpO2, and skin temperature monitoring. Battery lasts up to 6 days with typical usage. At $179, it's positioned as an affordable fitness-focused option. ScanWatch takes a hybrid approach, combining a traditional analog watch face with a small PMOLED display for notifications and data. Its standout advantage is exceptional battery life: up to 30 days on a single charge. Build quality is noticeably premium with stainless steel and sapphire crystal construction versus aluminum. However, ScanWatch lacks GPS and NFC, limiting standalone navigation and contactless payments. It also omits skin temperature tracking. At $299, ScanWatch costs 67% more and appeals to users prioritizing battery life and classic watch aesthetics over smartwatch features. Versa 4 suits fitness enthusiasts needing detailed activity tracking, GPS routes, and frequent app interactions. ScanWatch better serves those wanting traditional watch styling with subtle health monitoring and minimal charging demands. Your choice depends on whether you prefer a feature-rich digital companion or a sophisticated hybrid that doubles as an actual watch.
Who Should Buy
Buy the Fitbit Versa 4 if…
- →Best sleep tracking of any smartwatch — Daily Readiness Score
- →ECG, SpO2, and skin temperature at $179 is strong value
- →6-day battery life — charge once a week
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
Fitbit Versa 4
Pros
- Best sleep tracking of any smartwatch — Daily Readiness Score
- ECG, SpO2, and skin temperature at $179 is strong value
- 6-day battery life — charge once a week
- NFC for Google Wallet contactless payments
- Google integration with Maps, Wallet, and YouTube Music
Cons
- Fitbit OS is being sunset — unclear future app support
- GPS accuracy is less reliable than Garmin or Apple Watch
- Limited third-party app ecosystem
- Physical button replaced with a haptic side button — divisive
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 | Fitbit Versa 4 | Withings ScanWatch |
|---|---|---|
| Software | Fitbit OS (transitioning to Wear OS) | Withings proprietary (Health Mate app) |
| Body | ||
| Weight | 37.6 g | 58 g (42mm) |
| Case material | Aluminum | Stainless steel with sapphire crystal |
| Water resistance | WR50 | 5ATM (50m) |
| Health & Sensors | ||
| ECG | ||
| SpO₂ | ||
| Skin temperature | ||
| Heart rate | ||
| Sleep tracking | ||
| Battery | ||
| Battery life | Up to 6 days (typical usage) | Up to 30 days |
| Display | ||
| Size | 40 mm (1.58 inches) | 42mm |
| Type | AMOLED | Hybrid analog + PMOLED |
| Always-on display | ||
| Resolution | 336 x 336 | Analog dial with PMOLED digital display |
| Processor | ||
| Chipset | Fitbit proprietary | Withings custom low-power SoC |
| Connectivity | ||
| GPS | ||
| NFC | ||
| Wi-Fi | ||
| Cellular | ||
| Bluetooth | 5.0 | 5.0 |
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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 Fitbit products or all Withings products. View full details for the Fitbit Versa 4 or the Withings ScanWatch.