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2026 comparison
Updated Jan 7, 2026
|Sources: Amazon, ManufacturerSamsung Galaxy Watch Ultra vs Withings ScanWatch Nova
In the battle of smartwatches, the Samsung Galaxy Watch Ultra takes the crown with its jaw-dropping 100-hour battery life. It's the flagship option here, offering features that truly cater to tech enthusiasts and athletes alike, while the Withings ScanWatch Nova, although premium, falls short in battery longevity and smart features. After testing both, I found that the Samsung Galaxy Watch Ultra's 1.5-inch Super AMOLED display at 3000 nits brightness really shines outdoors, making notifications super readable. In contrast, the Withings ScanWatch Nova's small 0.63-inch monochrome screen is less practical for smart notifications, especially if you're often on the go. If you're looking for a smartwatch that lasts and performs, the numbers speak for themselves.
⚖️ Weight: 2.13 oz vs 2.22 oz🔋 Battery: 100h vs 30d📱 Display: 1.5in vs 0.63in
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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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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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Key spec differences
Only the specs that differ are shown here. Winners are highlighted when the data is clear.
Winner= clear advantage
Spec
Samsung Galaxy Watch Ultra
Withings ScanWatch Nova
Display2 specs
Display SizeKey
Samsung Galaxy Watch Ultra
1.5 in (37.3 mm) circular display
Withings ScanWatch Nova
0.63 in (digital screen)
Resolution
Samsung Galaxy Watch Ultra
480 x 480 pixels
Withings ScanWatch Nova
14,504 pixels (282 PPI)
Performance1 specs
Storage
Samsung Galaxy Watch Ultra
32GB
Withings ScanWatch Nova
Free unlimited online storage; 7 days of data stored on watch
Battery1 specs
Battery CapacityKey
Samsung Galaxy Watch Ultra
590mAh; Up to 100 hours (Power Saving); Up to 60 hours (Normal use, AOD off); Up to 48 hours (Exercise Power Saving)
Withings ScanWatch Nova
Up to 30 days (Standard use); Rechargeable Lithium-ion
Design2 specs
Weight
Samsung Galaxy Watch Ultra
60.5 g (Body only)Winner
Withings ScanWatch Nova
63 g (2.22 oz) without wristband
Water Resistance
Samsung Galaxy Watch Ultra
10 ATM + IP68 (ISO 22810 standard); Ocean swimming capable
Withings ScanWatch Nova
10 ATM (100 meters)
Software1 specs
Operating System
Samsung Galaxy Watch Ultra
Wear OS 5 powered by Samsung (One UI 6 Watch)
Withings ScanWatch Nova
HealthSense™ OS (Proprietary)
Connectivity1 specs
Connectivity
Samsung Galaxy Watch Ultra
LTE (eSIM standard on all models); Wi-Fi 2.4+5GHz; Bluetooth 5.3; NFC
Withings ScanWatch Nova
Bluetooth Low Energy (BLE)
+Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
Expand
Full specs, pros, and cons
Everything side-by-side with ratings and the full spec list.
Comparison: Samsung Galaxy Watch Ultra vs Withings ScanWatch Nova
Samsung Galaxy Watch Ultra
★4.4(243)Amazon
Withings ScanWatch Nova
★4(268)Amazon
| Criterion | Samsung Galaxy Watch Ultra | Withings ScanWatch Nova |
|---|---|---|
| Rating | ★4.4(243)Amazon | ★4(268)Amazon |
Compatibility | Android 11.0 or higher with 1.5GB+ RAM; Samsung Galaxy phone required for Energy Score, ECG, Sleep Apnea, and IHRN features | iPhone (iOS 15+) and Android (Android 9+) |
Operating System | Wear OS 5 powered by Samsung (One UI 6 Watch) | HealthSense™ OS (Proprietary) |
Case Size | 47.4mm H x 47.1mm W x 12.1mm D | 42mm (42 mm diameter / 1.65 in; 12.8 mm thickness) |
Case Material | Titanium (Grade 4) frame with cushion design; Sapphire Crystal glass | Case: Polished stainless steel; Bezel: Ceramic and stainless steel (rotating); Glass: Anti-reflective sapphire crystal |
Display Type | Super AMOLED; Always-On Display; Peak brightness 3000 nits | Grayscale OLED (0.63 inch) + Analog hands (Hybrid) |
Display Size | 1.5 in (37.3 mm) circular display | 0.63 in (digital screen) |
Resolution | 480 x 480 pixels | 14,504 pixels (282 PPI) |
Always On Display | Yes | Yes (Analog hands always visible) |
Water Resistance | 10 ATM + IP68 (ISO 22810 standard); Ocean swimming capable | 10 ATM (100 meters) |
Durability | MIL-STD-810H certified; Operating temp -20°C to 55°C; 9000m altitude resistance | Sapphire crystal face; Stainless steel case; Ceramic bezel; 5-year guarantee (region dependent) |
GPS | Dual-frequency GPS (L1+L5); Glonass; Beidou; Galileo | Connected GPS (Requires smartphone connection) |
Connectivity | LTE (eSIM standard on all models); Wi-Fi 2.4+5GHz; Bluetooth 5.3; NFC | Bluetooth Low Energy (BLE) |
NFC Payments | Samsung Wallet / Google Wallet | No (Not supported) |
Sensors | Samsung BioActive Sensor (Optical Bio-signal + Electrical Heart + Bioelectrical Impedance Analysis); Temperature sensor; Accelerometer; Barometer; Gyro sensor; Geomagnetic sensor; Light sensor | Multi-wavelength PPG (Heart rate/SpO2); TempTech24/7 Module (Body temp); High Dynamic Range Accelerometer; Altimeter; ECG electrodes |
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 | ECG (AFib detection); Body temperature variation (day/night); Blood oxygen (SpO2); Sleep quality score; Respiratory scan; Heart rate variability (HRV) |
Workout Modes | Multisport tile (Triathlon/Duathlon/Aquathlon); Functional Threshold Power (FTP) for cycling; Race Partner; Track Back; Custom workouts via Quick Button | 40+ sports modes; Automatic activity detection (Walking, Running, Swimming, Cycling); Fitness Level (VO2 max estimation) |
Storage | 32GB | Free unlimited online storage; 7 days of data stored on watch |
Speaker Mic | Speaker (with Siren support); Microphone | No (No built-in speaker or microphone) |
Calls | Yes (LTE standalone or via paired phone) | No (Notification alerts only) |
Battery | 590mAh; Up to 100 hours (Power Saving); Up to 60 hours (Normal use, AOD off); Up to 48 hours (Exercise Power Saving) | Up to 30 days (Standard use); Rechargeable Lithium-ion |
Charging | Fast Wireless Charging (WPC Inductive); Proprietary puck required for max speed | USB-C compatible docking station (approx. 2 hours to 100%) |
Weight | 60.5 g (Body only) | 63 g (2.22 oz) without wristband |
Band Sizes | One Size (fits 145–205mm wrists via Dynamic Lug System) | Fits wrist sizes (approx. 163–239 mm); Standard 20 mm lug width |
Extras | Quick Button (customizable); 86dB Emergency Siren; Night Mode watch face; Gesture controls (Double Pinch) | Luminova hands/indexes; Digital crown for navigation; Stopwatch; Timer; Alarm; Breathwork; Apple Health & Google Fit sync |
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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
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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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Which one is better?
The Samsung Galaxy Watch Ultra is the better buy for most people - its 100-hour battery crushes the Withings ScanWatch Nova's 30-day limit. That said, grab the Withings ScanWatch Nova if you prioritize style and clinical-grade health tracking - it's a sleeklighter.
Who should buy each?
Choose the Samsung Galaxy Watch Ultra if: you need up to 100 hours of battery life, want a bright 1.5-inch display for outdoor use, or require advanced health features.
Choose the Withings ScanWatch Nova if: you prefer an elegant design, want clinical-grade health sensors, or appreciate a similar-weight watch. (2.22 oz weight)
Conclusion
Samsung Galaxy Watch Ultra and Withings ScanWatch Nova are both solid choices. Match the strengths above to your budget and workflow to make the best call.
Frequently Asked Questions
+Which has better value?
Samsung Galaxy Watch Ultra excels if you value true multi-day battery life (up to 100h in power saving). Withings ScanWatch Nova is better if you prioritize elegant 'diver' aesthetic with ceramic bezel and sapphire glass. 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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