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2026 comparison
Updated Jan 16, 2026
|Sources: Amazon, ManufacturerWithings ScanWatch Nova vs Samsung Galaxy Watch Ultra
If you are torn between Withings ScanWatch Nova and Samsung Galaxy Watch Ultra, this breakdown is for you. We compare specs, pros, and cons so you can decide confidently.
Ratings: 4★ vs 4.4★
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Withings ScanWatch Nova
★4
(268)•Amazon
Compatibility:iPhone (iOS 15+) and Android (Android 9+)
Operating System:HealthSense™ OS (Proprietary)
Case Size:42mm (42 mm diameter / 1.65 in; 12.8 mm thickness)
Case Material:Case: Polished stainless steel; Bezel: Ceramic and stainless steel (rotating); Glass: Anti-reflective sapphire crystal
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Samsung Galaxy Watch Ultra
★4.4
(243)•Amazon
Compatibility:Android 11.0 or higher with 1.5GB+ RAM; Samsung Galaxy phone required for Energy Score, ECG, Sleep Apnea, and IHRN features
Operating System:Wear OS 5 powered by Samsung (One UI 6 Watch)
Case Size:47.4mm H x 47.1mm W x 12.1mm D
Case Material:Titanium (Grade 4) frame with cushion design; Sapphire Crystal glass
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Comparison: Withings ScanWatch Nova vs Samsung Galaxy Watch Ultra
Withings ScanWatch Nova
★4(268)Amazon
Samsung Galaxy Watch Ultra
★4.4(243)Amazon
| Criterion | Withings ScanWatch Nova | Samsung Galaxy Watch Ultra |
|---|---|---|
| Rating | ★4(268)Amazon | ★4.4(243)Amazon |
Compatibility | iPhone (iOS 15+) and Android (Android 9+) | Android 11.0 or higher with 1.5GB+ RAM; Samsung Galaxy phone required for Energy Score, ECG, Sleep Apnea, and IHRN features |
Operating System | HealthSense™ OS (Proprietary) | Wear OS 5 powered by Samsung (One UI 6 Watch) |
Case Size | 42mm (42 mm diameter / 1.65 in; 12.8 mm thickness) | 47.4mm H x 47.1mm W x 12.1mm D |
Case Material | Case: Polished stainless steel; Bezel: Ceramic and stainless steel (rotating); Glass: Anti-reflective sapphire crystal | Titanium (Grade 4) frame with cushion design; Sapphire Crystal glass |
Display Type | Grayscale OLED (0.63 inch) + Analog hands (Hybrid) | Super AMOLED; Always-On Display; Peak brightness 3000 nits |
Display Size | 0.63 in (digital screen) | 1.5 in (37.3 mm) circular display |
Resolution | 14,504 pixels (282 PPI) | 480 x 480 pixels |
Always On Display | Yes (Analog hands always visible) | Yes |
Water Resistance | 10 ATM (100 meters) | 10 ATM + IP68 (ISO 22810 standard); Ocean swimming capable |
Durability | Sapphire crystal face; Stainless steel case; Ceramic bezel; 5-year guarantee (region dependent) | MIL-STD-810H certified; Operating temp -20°C to 55°C; 9000m altitude resistance |
GPS | Connected GPS (Requires smartphone connection) | Dual-frequency GPS (L1+L5); Glonass; Beidou; Galileo |
Connectivity | Bluetooth Low Energy (BLE) | LTE (eSIM standard on all models); Wi-Fi 2.4+5GHz; Bluetooth 5.3; NFC |
NFC Payments | No (Not supported) | Samsung Wallet / Google Wallet |
Sensors | Multi-wavelength PPG (Heart rate/SpO2); TempTech24/7 Module (Body temp); High Dynamic Range Accelerometer; Altimeter; ECG electrodes | Samsung BioActive Sensor (Optical Bio-signal + Electrical Heart + Bioelectrical Impedance Analysis); Temperature sensor; Accelerometer; Barometer; Gyro sensor; Geomagnetic sensor; Light sensor |
Health Features | ECG (AFib detection); Body temperature variation (day/night); Blood oxygen (SpO2); Sleep quality score; Respiratory scan; Heart rate variability (HRV) | Energy Score; Sleep Apnea detection (FDA authorized); AGEs Index; Body Composition; ECG; Irregular Heart Rhythm Notification; Cycle Tracking with skin temperature; Sleep coaching |
Workout Modes | 40+ sports modes; Automatic activity detection (Walking, Running, Swimming, Cycling); Fitness Level (VO2 max estimation) | Multisport tile (Triathlon/Duathlon/Aquathlon); Functional Threshold Power (FTP) for cycling; Race Partner; Track Back; Custom workouts via Quick Button |
Storage | Free unlimited online storage; 7 days of data stored on watch | 32GB |
Speaker Mic | No (No built-in speaker or microphone) | Speaker (with Siren support); Microphone |
Calls | No (Notification alerts only) | Yes (LTE standalone or via paired phone) |
Battery | Up to 30 days (Standard use); Rechargeable Lithium-ion | 590mAh; Up to 100 hours (Power Saving); Up to 60 hours (Normal use, AOD off); Up to 48 hours (Exercise Power Saving) |
Charging | USB-C compatible docking station (approx. 2 hours to 100%) | Fast Wireless Charging (WPC Inductive); Proprietary puck required for max speed |
Weight | 63 g (2.22 oz) without wristband | 60.5 g (Body only) |
Band Sizes | Fits wrist sizes (approx. 163–239 mm); Standard 20 mm lug width | One Size (fits 145–205mm wrists via Dynamic Lug System) |
Extras | Luminova hands/indexes; Digital crown for navigation; Stopwatch; Timer; Alarm; Breathwork; Apple Health & Google Fit sync | Quick Button (customizable); 86dB Emergency Siren; Night Mode watch face; Gesture controls (Double Pinch) |
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Withings ScanWatch Nova
Rating:★4(268)Amazon
Compatibility:iPhone (iOS 15+) and Android (Android 9+)
Operating System:HealthSense™ OS (Proprietary)
Case Size:42mm (42 mm diameter / 1.65 in; 12.8 mm thickness)
Case Material:Case: Polished stainless steel; Bezel: Ceramic and stainless steel (rotating); Glass: Anti-reflective sapphire crystal
Display Type:Grayscale OLED (0.63 inch) + Analog hands (Hybrid)
Display Size:0.63 in (digital screen)
Resolution:14,504 pixels (282 PPI)
Always On Display:Yes (Analog hands always visible)
Water Resistance:10 ATM (100 meters)
Durability:Sapphire crystal face; Stainless steel case; Ceramic bezel; 5-year guarantee (region dependent)
GPS:Connected GPS (Requires smartphone connection)
Connectivity:Bluetooth Low Energy (BLE)
NFC Payments:No (Not supported)
Sensors:Multi-wavelength PPG (Heart rate/SpO2); TempTech24/7 Module (Body temp); High Dynamic Range Accelerometer; Altimeter; ECG electrodes
Health Features:ECG (AFib detection); Body temperature variation (day/night); Blood oxygen (SpO2); Sleep quality score; Respiratory scan; Heart rate variability (HRV)
Workout Modes:40+ sports modes; Automatic activity detection (Walking, Running, Swimming, Cycling); Fitness Level (VO2 max estimation)
Storage:Free unlimited online storage; 7 days of data stored on watch
Speaker Mic:No (No built-in speaker or microphone)
Calls:No (Notification alerts only)
Battery:Up to 30 days (Standard use); Rechargeable Lithium-ion
Charging:USB-C compatible docking station (approx. 2 hours to 100%)
Weight:63 g (2.22 oz) without wristband
Band Sizes:Fits wrist sizes (approx. 163–239 mm); Standard 20 mm lug width
Extras:Luminova hands/indexes; Digital crown for navigation; Stopwatch; Timer; Alarm; Breathwork; Apple Health & Google Fit sync
✓ Pros:
- • Elegant 'diver' aesthetic with ceramic bezel and sapphire glass
- • Clinical-grade health sensors (ECG, SpO2, Temperature) in a non-intrusive form factor
- • Exceptional battery life (30 days) compared to standard smartwatches
- • Water-resistant to 10 ATM (100m), suitable for swimming and snorkeling
- • Distraction-free interface with a small, discreet digital screen
✗ Cons:
- • Small monochrome screen limits notification readability and smart features
- • No built-in GPS (relies on phone connection for tracking routes)
- • No music controls, NFC payments, or third-party apps
- • Heavy on the wrist (63g watch head only) due to steel construction
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Samsung Galaxy Watch Ultra
Rating:★4.4(243)Amazon
Compatibility:Android 11.0 or higher with 1.5GB+ RAM; Samsung Galaxy phone required for Energy Score, ECG, Sleep Apnea, and IHRN features
Operating System:Wear OS 5 powered by Samsung (One UI 6 Watch)
Case Size:47.4mm H x 47.1mm W x 12.1mm D
Case Material:Titanium (Grade 4) frame with cushion design; Sapphire Crystal glass
Display Type:Super AMOLED; Always-On Display; Peak brightness 3000 nits
Display Size:1.5 in (37.3 mm) circular display
Resolution:480 x 480 pixels
Always On Display:Yes
Water Resistance:10 ATM + IP68 (ISO 22810 standard); Ocean swimming capable
Durability:MIL-STD-810H certified; Operating temp -20°C to 55°C; 9000m altitude resistance
GPS:Dual-frequency GPS (L1+L5); Glonass; Beidou; Galileo
Connectivity:LTE (eSIM standard on all models); Wi-Fi 2.4+5GHz; Bluetooth 5.3; NFC
NFC Payments:Samsung Wallet / Google Wallet
Sensors:Samsung BioActive Sensor (Optical Bio-signal + Electrical Heart + Bioelectrical Impedance Analysis); Temperature sensor; Accelerometer; Barometer; Gyro sensor; Geomagnetic sensor; Light sensor
Health Features:Energy Score; Sleep Apnea detection (FDA authorized); AGEs Index; Body Composition; ECG; Irregular Heart Rhythm Notification; Cycle Tracking with skin temperature; Sleep coaching
Workout Modes:Multisport tile (Triathlon/Duathlon/Aquathlon); Functional Threshold Power (FTP) for cycling; Race Partner; Track Back; Custom workouts via Quick Button
Storage:32GB
Speaker Mic:Speaker (with Siren support); Microphone
Calls:Yes (LTE standalone or via paired phone)
Battery:590mAh; Up to 100 hours (Power Saving); Up to 60 hours (Normal use, AOD off); Up to 48 hours (Exercise Power Saving)
Charging:Fast Wireless Charging (WPC Inductive); Proprietary puck required for max speed
Weight:60.5 g (Body only)
Band Sizes:One Size (fits 145–205mm wrists via Dynamic Lug System)
Extras:Quick Button (customizable); 86dB Emergency Siren; Night Mode watch face; Gesture controls (Double Pinch)
✓ Pros:
- • True multi-day battery life (up to 100h in power saving)
- • Extremely durable Grade 4 Titanium build with 10ATM rating
- • Dual-frequency GPS (L1+L5) provides superior tracking accuracy
- • Brightest display in class (3000 nits) for outdoor visibility
- • Exclusive features like Siren and Multisport tile for triathletes
✗ Cons:
- • Large 47mm square-circle design may not fit smaller wrists
- • Key health features (ECG, Sleep Apnea) locked to Samsung phones
- • Proprietary band attachment (Dynamic Lug) limits third-party options
- • Charging speed is slower (~2 hours) compared to competitors
As an Amazon Associate I earn from qualifying purchases.
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Which one is better?
Looking at user satisfaction (Samsung Galaxy Watch Ultra: 4.0★ vs Withings ScanWatch Nova: 4.4★), Samsung Galaxy Watch Ultra pulls ahead. The gap is small—choose based on the priorities below.
Who should buy each?
Choose Withings ScanWatch Nova if:
- You want Elegant 'diver' aesthetic with ceramic bezel and sapphire glass, Clinical-grade health sensors (ECG, SpO2, Temperature) in a non-intrusive form factor
- Rating: 4★ (268 reviews)
Choose Samsung Galaxy Watch Ultra if:
- You prefer True multi-day battery life (up to 100h in power saving), Extremely durable Grade 4 Titanium build with 10ATM rating
- Rating: 4.4★ (243 reviews)
Conclusion
There is no wrong answer here. Focus on the features you will use daily and pick the model that aligns with them.
Frequently Asked Questions
+Which has better value?
Withings ScanWatch Nova excels if you value elegant 'diver' aesthetic with ceramic bezel and sapphire glass. Samsung Galaxy Watch Ultra is better if you prioritize true multi-day battery life (up to 100h in power saving). Pick based on your budget and daily use.
+Is this an independent review?
Yes. We use affiliate links for monetization, but recommendations are research-driven and unbiased.
+Do newer models exist?
Check release timelines from the manufacturers and compare pricing before you buy. We refresh this page when major updates land.
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