OnePlus Watch 2 vs Withings ScanWatch Nova
The OnePlus Watch 2 is the premium option here, boasting a staggering 100-hour battery life compared to the Withings ScanWatch Nova's 30 days. In real-world use, that means you can wear the OnePlus for over four days of continuous use without needing to charge, while the ScanWatch requires regular attention, which can be a hassle for active users. What matters most here are the features. The OnePlus Watch 2 offers a vibrant 1.43-inch AMOLED display, perfect for notifications and apps, while the ScanWatch Nova's 0.63-inch monochrome screen limits its functionality. If you're after a smartwatch that truly delivers on battery life and usability, the OnePlus Watch 2 is the smarter buy for most consumers in 2026. Key specs: Weight: 1.73 oz vs 2.22 oz and Battery: 100 hours vs 30 days.
Why compare these? Both the OnePlus Watch 2 and Withings ScanWatch Nova are high-end smartwatches competing in the same market segment. This makes them direct rivals for buyers looking for high-end features and performance in 2026. Understanding their differences helps you choose the right one for your specific needs.
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Key Differences at a Glance
| Aspect | OnePlus Watch | Withings ScanWatch |
|---|---|---|
| User Rating | ✓4.6★ (538 reviews) | 4★ (268 reviews) |
| Top Strength | Groundbreaking 100-hour battery life for a full-featured Wear OS watch | Elegant 'diver' aesthetic with ceramic bezel and sapphire glass |
| Main Drawback | Available in only one large size (47mm), which may not fit small wrists | Small monochrome screen limits notification readability and smart features |
| Market Position | Premium | Premium |
OnePlus Watch 2
Android 8.0+ only (requires GMS 23.45.23+); iOS and Android Go edition NOT supported
Wear OS 4 + RTOS (Dual-Engine Architecture)
47mm (47.0 x 46.6 x 12.1 mm / 1.85 x 1.83 x 0.47 in)
Chassis: Stainless steel; Bottom: Plastic (PC/PC+glass fiber); Cover: 2.5D Sapphire Crystal
Withings ScanWatch Nova
iPhone (iOS 15+) and Android (Android 9+)
HealthSense™ OS (Proprietary)
42mm (42 mm diameter / 1.65 in; 12.8 mm thickness)
Case: Polished stainless steel; Bezel: Ceramic and stainless steel (rotating); Glass: Anti-reflective sapphire crystal
Only the specs that differ are shown here. Winners are highlighted when the data is clear.
+Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
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Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
Comparison: OnePlus Watch 2 vs Withings ScanWatch Nova
OnePlus Watch 2
Withings ScanWatch Nova
| Criterion | OnePlus Watch 2 | Withings ScanWatch Nova |
|---|---|---|
| Rating | ★4.6(538)Amazon | ★4(268)Amazon |
Compatibility | Android 8.0+ only (requires GMS 23.45.23+); iOS and Android Go edition NOT supported | iPhone (iOS 15+) and Android (Android 9+) |
Operating System | Wear OS 4 + RTOS (Dual-Engine Architecture) | HealthSense™ OS (Proprietary) |
Case Size | 47mm (47.0 x 46.6 x 12.1 mm / 1.85 x 1.83 x 0.47 in) | 42mm (42 mm diameter / 1.65 in; 12.8 mm thickness) |
Case Material | Chassis: Stainless steel; Bottom: Plastic (PC/PC+glass fiber); Cover: 2.5D Sapphire Crystal | Case: Polished stainless steel; Bezel: Ceramic and stainless steel (rotating); Glass: Anti-reflective sapphire crystal |
Display Type | AMOLED touchscreen | Grayscale OLED (0.63 inch) + Analog hands (Hybrid) |
Display Size | 1.43 in (3.63 cm) | 0.63 in (digital screen) |
Resolution | 466 x 466 pixels (326 ppi); 600 nits default brightness | 14,504 pixels (282 PPI) |
Always On Display | Yes | Yes (Analog hands always visible) |
Water Resistance | 5 ATM (50 m) + IP68 (1.5m for 30 min) | 10 ATM (100 meters) |
Durability | MIL-STD-810H certified; Sapphire crystal face; Operating temp: -20°C to 55°C | Sapphire crystal face; Stainless steel case; Ceramic bezel; 5-year guarantee (region dependent) |
GPS | Dual-frequency L1 + L5; Beidou, GPS, Galileo, GLONASS, QZSS | Connected GPS (Requires smartphone connection) |
Connectivity | Bluetooth 5.0, Wi-Fi 2.4GHz/5GHz (802.11 a/b/g/n) | Bluetooth Low Energy (BLE) |
NFC Payments | Yes (Google Wallet) | No (Not supported) |
Sensors | Optical heart rate; optical pulse oximeter (SpO2); accelerometer; gyroscope; geomagnetic sensor; light sensor; barometer | Multi-wavelength PPG (Heart rate/SpO2); TempTech24/7 Module (Body temp); High Dynamic Range Accelerometer; Altimeter; ECG electrodes |
Health Features | Sleep tracking (stages, score, snoring risk); OHealth breathing training; stress monitoring; heart rate (high/low alerts, resting); blood oxygen (SpO2) | ECG (AFib detection); Body temperature variation (day/night); Blood oxygen (SpO2); Sleep quality score; Respiratory scan; Heart rate variability (HRV) |
Workout Modes | 100+ sports modes; 6 auto-detection modes (running, walking, cycling, swimming, rowing, elliptical); professional analysis for running, tennis, skiing | 40+ sports modes; Automatic activity detection (Walking, Running, Swimming, Cycling); Fitness Level (VO2 max estimation) |
Storage | 32 GB ROM + 2 GB RAM (Approx. 4GB reserved for RTOS) | Free unlimited online storage; 7 days of data stored on watch |
Speaker Mic | Yes (Built-in speaker and microphone) | No (No built-in speaker or microphone) |
Calls | Yes (Bluetooth calling supported in Smart and Power Saver modes) | No (Notification alerts only) |
Battery | 500 mAh; Up to 100 hours (Smart Mode); Up to 48 hours (Heavy Use); Up to 12 days (Power Saver Mode) | Up to 30 days (Standard use); Rechargeable Lithium-ion |
Charging | VOOC Fast Charging (7.5W); 100% in 60 mins; 1 day power in 10 mins | USB-C compatible docking station (approx. 2 hours to 100%) |
Weight | 49 g (Watch only) / 80 g (with Fluororubber strap) | 63 g (2.22 oz) without wristband |
Band Sizes | Fits wrist sizes 140–210 mm; standard 22 mm quick-release width | Fits wrist sizes (approx. 163–239 mm); Standard 20 mm lug width |
Extras | Dual-Engine architecture (Snapdragon W5 + BES2700); Google Play Store; Google Maps; Google Assistant; Flashlight; Compass; Media controls | Luminova hands/indexes; Digital crown for navigation; Stopwatch; Timer; Alarm; Breathwork; Apple Health & Google Fit sync |
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OnePlus Watch 2
Android 8.0+ only (requires GMS 23.45.23+); iOS and Android Go edition NOT supported
Wear OS 4 + RTOS (Dual-Engine Architecture)
47mm (47.0 x 46.6 x 12.1 mm / 1.85 x 1.83 x 0.47 in)
Chassis: Stainless steel; Bottom: Plastic (PC/PC+glass fiber); Cover: 2.5D Sapphire Crystal
AMOLED touchscreen
1.43 in (3.63 cm)
Pros
- Groundbreaking 100-hour battery life for a full-featured Wear OS watch
- Premium build with stainless steel chassis and sapphire crystal standard
Cons
- Available in only one large size (47mm), which may not fit small wrists
- No LTE/Cellular option available
Withings ScanWatch Nova
iPhone (iOS 15+) and Android (Android 9+)
HealthSense™ OS (Proprietary)
42mm (42 mm diameter / 1.65 in; 12.8 mm thickness)
Case: Polished stainless steel; Bezel: Ceramic and stainless steel (rotating); Glass: Anti-reflective sapphire crystal
Grayscale OLED (0.63 inch) + Analog hands (Hybrid)
0.63 in (digital screen)
Pros
- Elegant 'diver' aesthetic with ceramic bezel and sapphire glass
- Clinical-grade health sensors (ECG, SpO2, Temperature) in a non-intrusive form factor
Cons
- Small monochrome screen limits notification readability and smart features
- No built-in GPS (relies on phone connection for tracking routes)
Which one is better?
The OnePlus Watch 2 is the better buy for most people - its 100-hour battery life crushes the Withings ScanWatch Nova's 30-day limit. That said, grab the ScanWatch Nova if you prioritize clinical-grade health tracking and don’t mind charging more frequently - it’s at 2.22 oz.
Who should buy each?
Choose the OnePlus Watch 2 if: you want a long-lasting battery for extended trips, need a vibrant display for notifications, or prefer a smartwatch that offers a wealth of features. (1.73 oz weight)
Choose the Withings ScanWatch Nova if: you value clinical health metrics like ECG, prefer a classic watch design, or need a option for daily wear. (2.22 oz weight)
Quality Seekers
Higher user rating (4.6★ vs 4★) indicates better overall satisfaction
→ Choose OnePlus Watch
Safe Choice Buyers
More widely tested with 538 reviews vs 268
→ Choose OnePlus Watch
Groundbreaking 100-hour battery Priority
Groundbreaking 100-hour battery life for a full-featured Wear OS watch
→ Choose OnePlus Watch
Elegant 'diver' aesthetic Priority
Elegant 'diver' aesthetic with ceramic bezel and sapphire glass
→ Choose Withings ScanWatch
Conclusion
There is no wrong answer here. Focus on the features you will use daily and pick the model that aligns with them.
Bottom line: The OnePlus Watch 2 edges ahead with a 4.6★ rating compared to 4★. However, Withings ScanWatch Nova remains a strong contender if its strengths align better with your needs.
Frequently Asked Questions
+Which is better: OnePlus Watch 2 or Withings ScanWatch Nova?
OnePlus Watch 2 is the better choice if you prioritize groundbreaking 100-hour battery life for a full-featured wear os watch. Withings ScanWatch Nova wins if you value elegant 'diver' aesthetic with ceramic bezel and sapphire glass. Both are rated highly (4.6★ vs 4★), so consider your specific needs and budget.
+What are the main differences between OnePlus Watch 2 and Withings ScanWatch Nova?
Key differences: OnePlus Watch 2 offers groundbreaking 100-hour battery life for a full-featured wear os watch, while Withings ScanWatch Nova stands out with elegant 'diver' aesthetic with ceramic bezel and sapphire glass. Consider that OnePlus Watch 2 available in only one large size (47mm), which may not fit small wrists. Meanwhile, Withings ScanWatch Nova small monochrome screen limits notification readability and smart features. Check the detailed specs table above for a complete comparison.
+Where can US buyers get the best price?
For US buyers, Amazon typically offers competitive pricing with Prime shipping, easy returns, and reliable warranty support. We recommend comparing prices on both products using our affiliate links above—prices fluctuate regularly, and you may find sales or deals.
+Is this comparison up to date?
Yes, this comparison is current for 2026. We regularly verify specs, ratings, and availability. Last verified: January 27, 2026. PageBen uses affiliate links for monetization, but our recommendations are research-driven and independent.
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