Fitbit Sense vs Withings ScanWatch 2
The Verdict
Both watches excel at health monitoring with ECG, SpO2, skin temperature, and sleep tracking built in. The Fitbit Sense delivers a full AMOLED touchscreen at 336x336 resolution with onboard GPS and NFC for contactless payments, making it more versatile for navigation and mobile payments. Its 6-day battery life is respectable for a smartwatch with this display technology. The Withings ScanWatch 2 takes a different approach with its hybrid analog watch face plus subtle OLED sub-display, weighing just 39 grams versus the Sense's 45.9 grams. Most notably, the ScanWatch 2 achieves an exceptional 30-day battery life, meaning you'll rarely think about charging it. However, it sacrifices GPS and NFC functionality. At $299 versus $349, the Fitbit Sense offers better raw smartwatch features and navigation capabilities for frequent travelers or fitness enthusiasts who need GPS. The Withings ScanWatch 2 appeals more to those prioritizing minimal charging and preferring a classic watch aesthetic over a digital display. Choose the Sense if you want full smartwatch functionality and don't mind weekly charging. Pick the ScanWatch 2 if you value battery endurance and prefer looking like a traditional watch.
Who Should Buy
Buy the Fitbit Sense if…
- →Most comprehensive health sensor suite at launch — EDA, ECG, SpO2, skin temp
- →6+ day battery outlasts Apple Watch and Samsung Galaxy Watch
- →Built-in GPS for phone-free outdoor workouts
Buy the Withings ScanWatch 2 if…
- →30-day battery life is unmatched — charge monthly, not daily
- →Looks like a luxury analog watch — no one will know it's smart
- →Medical-grade ECG, SpO2, and respiratory rate monitoring
Category Scores
Pros & Cons
Fitbit Sense
Pros
- Most comprehensive health sensor suite at launch — EDA, ECG, SpO2, skin temp
- 6+ day battery outlasts Apple Watch and Samsung Galaxy Watch
- Built-in GPS for phone-free outdoor workouts
- Stress management score with EDA sensor is unique
- NFC for Fitbit Pay contactless payments
Cons
- Fitbit OS app ecosystem is very limited compared to watchOS/Wear OS
- Capacitive button is unreliable and frustrating to press
- Many advanced features require Fitbit Premium subscription ($10/mo)
- Google acquisition created uncertainty about Fitbit OS future
Withings ScanWatch 2
Pros
- 30-day battery life is unmatched — charge monthly, not daily
- Looks like a luxury analog watch — no one will know it's smart
- Medical-grade ECG, SpO2, and respiratory rate monitoring
- Skin temperature tracking for early illness detection
- Stainless steel build is genuinely elegant
Cons
- No GPS — phone required for route tracking
- Tiny OLED sub-display limits notification readability
- No NFC for contactless payments
- No third-party apps — health tracking only
Full Specifications
| Spec | Fitbit Sense | Withings ScanWatch 2 |
|---|---|---|
| Software | Fitbit OS | Withings OS |
| Body | ||
| Weight | 45.9 g | 39 g |
| Case material | Aluminum | Stainless steel |
| Water resistance | 5ATM | 5ATM |
| Health & Sensors | ||
| ECG | ||
| SpO₂ | ||
| Skin temperature | ||
| Heart rate | ||
| Sleep tracking | ||
| Battery | ||
| Battery life | Up to 6+ days | Up to 30 days |
| Display | ||
| Size | 40mm (1.58 inches) | 42 mm |
| Type | AMOLED | Hybrid analog + OLED |
| Always-on display | ||
| Resolution | 336 x 336 | Hybrid analog with OLED sub-display |
| Processor | ||
| Chipset | Fitbit custom processor | Withings proprietary |
| 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 Sense or the Withings ScanWatch 2.