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2026 comparison
Updated Jan 7, 2026
|Sources: Amazon, ManufacturerApple Watch Series 10 vs Samsung Galaxy Watch Ultra
Get the Samsung Galaxy Watch Ultra unless you absolutely need iPhone compatibility. The numbers tell the story: a massive 100 hours of battery life vs just 18 hours for the Apple Watch Series 10. That's a game-changer for anyone who values extended usage without daily charging. In real-world use, that means the Galaxy Watch Ultra can handle a weekend trip without needing a charge, while the Apple Watch Series 10 requires nightly charging. If you're looking for a reliable smartwatch that lasts, the Galaxy Watch Ultra is the smarter buy in 2026.
⚖️ Weight: 1.28 oz vs 2.13 oz💽 Storage: 64 GB vs 32 GB🔋 Battery: 18h vs 100h
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Apple Watch Series 10
★4.7
(15,669)•Amazon
Compatibility:iPhone Xs or later, including iPhone SE (2nd generation or later), with iOS 18 or later
Operating System:watchOS 11
Case Size:46mm (46mm H x 39mm W x 9.7mm D) or 42mm (42mm H x 36mm W x 9.7mm D)
Case Material:Aluminum (Jet Black, Rose Gold, Silver) or Titanium (Slate, Gold, Natural)
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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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Key spec differences
Only the specs that differ are shown here. Winners are highlighted when the data is clear.
Winner= clear advantage
Spec
Apple Watch Series 10
Samsung Galaxy Watch Ultra
Display2 specs
Display SizeKey
Apple Watch Series 10
1220 sq mm (46mm) / 989 sq mm (42mm) display area
Samsung Galaxy Watch Ultra
1.5 in (37.3 mm) circular display
Resolution
Apple Watch Series 10
416 x 496 pixels (46mm); 374 x 446 pixels (42mm)
Samsung Galaxy Watch Ultra
480 x 480 pixels
Performance1 specs
Storage
Apple Watch Series 10
64GBWinner
Samsung Galaxy Watch Ultra
32GB
Battery1 specs
Battery CapacityKey
Apple Watch Series 10
Up to 18 hours (normal use); Up to 36 hours (Low Power Mode)
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)
Design2 specs
Weight
Apple Watch Series 10
Aluminum: 36.4g (46mm) / 30g (42mm); Titanium: 41.7g (46mm) / 34.4g (42mm)Winner
Samsung Galaxy Watch Ultra
60.5 g (Body only)
Water Resistance
Apple Watch Series 10
50 m (ISO 22810:2010); Swimproof
Samsung Galaxy Watch Ultra
10 ATM + IP68 (ISO 22810 standard); Ocean swimming capable
Software1 specs
Operating System
Apple Watch Series 10
watchOS 11
Samsung Galaxy Watch Ultra
Wear OS 5 powered by Samsung (One UI 6 Watch)
Connectivity1 specs
Connectivity
Apple Watch Series 10
LTE and UMTS (GPS + Cellular models); Wi-Fi 4 (802.11n); Bluetooth 5.3; 2nd-gen Ultra Wideband chip
Samsung Galaxy Watch Ultra
LTE (eSIM standard on all models); Wi-Fi 2.4+5GHz; Bluetooth 5.3; NFC
+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: Apple Watch Series 10 vs Samsung Galaxy Watch Ultra
Apple Watch Series 10
★4.7(15,669)Amazon
Samsung Galaxy Watch Ultra
★4.4(243)Amazon
| Criterion | Apple Watch Series 10 | Samsung Galaxy Watch Ultra |
|---|---|---|
| Rating | ★4.7(15,669)Amazon | ★4.4(243)Amazon |
Compatibility | iPhone Xs or later, including iPhone SE (2nd generation or later), with iOS 18 or later | Android 11.0 or higher with 1.5GB+ RAM; Samsung Galaxy phone required for Energy Score, ECG, Sleep Apnea, and IHRN features |
Operating System | watchOS 11 | Wear OS 5 powered by Samsung (One UI 6 Watch) |
Case Size | 46mm (46mm H x 39mm W x 9.7mm D) or 42mm (42mm H x 36mm W x 9.7mm D) | 47.4mm H x 47.1mm W x 12.1mm D |
Case Material | Aluminum (Jet Black, Rose Gold, Silver) or Titanium (Slate, Gold, Natural) | Titanium (Grade 4) frame with cushion design; Sapphire Crystal glass |
Display Type | Always-On Retina LTPO3 OLED; Wide-angle; Up to 2000 nits brightness; Minimum 1 nit | Super AMOLED; Always-On Display; Peak brightness 3000 nits |
Display Size | 1220 sq mm (46mm) / 989 sq mm (42mm) display area | 1.5 in (37.3 mm) circular display |
Resolution | 416 x 496 pixels (46mm); 374 x 446 pixels (42mm) | 480 x 480 pixels |
Always On Display | Yes | Yes |
Water Resistance | 50 m (ISO 22810:2010); Swimproof | 10 ATM + IP68 (ISO 22810 standard); Ocean swimming capable |
Durability | IP6X dust resistant; Crack-resistant front crystal | MIL-STD-810H certified; Operating temp -20°C to 55°C; 9000m altitude resistance |
GPS | L1 GPS, GNSS, Galileo, and BeiDou | Dual-frequency GPS (L1+L5); Glonass; Beidou; Galileo |
Connectivity | LTE and UMTS (GPS + Cellular models); Wi-Fi 4 (802.11n); Bluetooth 5.3; 2nd-gen Ultra Wideband chip | LTE (eSIM standard on all models); Wi-Fi 2.4+5GHz; Bluetooth 5.3; NFC |
NFC Payments | Apple Pay | Samsung Wallet / Google Wallet |
Sensors | Electrical heart sensor (ECG); 3rd-gen optical heart sensor; Temperature sensor; Compass; Always-on altimeter; High-g accelerometer; High dynamic range gyroscope; Ambient light sensor; Depth gauge (to 6m); Water temperature sensor | Samsung BioActive Sensor (Optical Bio-signal + Electrical Heart + Bioelectrical Impedance Analysis); Temperature sensor; Accelerometer; Barometer; Gyro sensor; Geomagnetic sensor; Light sensor |
Health Features | Sleep Apnea notifications; Blood Oxygen app; ECG app; Cycle Tracking with retrospective ovulation estimates; High/low heart rate notifications; Irregular rhythm notifications; Medications; Mindfulness; Vitals app | 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 | Strength, HIIT, Pilates, Yoga, Swimming (Pool & Open Water), Running, Cycling, Hiking, Multisport, Tai Chi, Kickboxing, Dance, Cooldown, and more via Workout app | Multisport tile (Triathlon/Duathlon/Aquathlon); Functional Threshold Power (FTP) for cycling; Race Partner; Track Back; Custom workouts via Quick Button |
Storage | 64GB | 32GB |
Speaker Mic | Speaker (media playback supported); Microphone with Voice Isolation | Speaker (with Siren support); Microphone |
Calls | Yes (GPS + Cellular models standalone); GPS models via paired iPhone | Yes (LTE standalone or via paired phone) |
Battery | Up to 18 hours (normal use); Up to 36 hours (Low Power Mode) | 590mAh; Up to 100 hours (Power Saving); Up to 60 hours (Normal use, AOD off); Up to 48 hours (Exercise Power Saving) |
Charging | Fast charge (0–80% in approx. 30 min); Magnetic Fast Charger to USB-C Cable (1m) included | Fast Wireless Charging (WPC Inductive); Proprietary puck required for max speed |
Weight | Aluminum: 36.4g (46mm) / 30g (42mm); Titanium: 41.7g (46mm) / 34.4g (42mm) | 60.5 g (Body only) |
Band Sizes | Fits 140–245mm wrists (46mm); Fits 130–200mm wrists (42mm) | One Size (fits 145–205mm wrists via Dynamic Lug System) |
Extras | S10 SiP with 4-core Neural Engine; Double tap gesture; On-device Siri; Crash Detection; Fall Detection | Quick Button (customizable); 86dB Emergency Siren; Night Mode watch face; Gesture controls (Double Pinch) |
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Apple Watch Series 10
Rating:★4.7(15,669)Amazon
Compatibility:iPhone Xs or later, including iPhone SE (2nd generation or later), with iOS 18 or later
Operating System:watchOS 11
Case Size:46mm (46mm H x 39mm W x 9.7mm D) or 42mm (42mm H x 36mm W x 9.7mm D)
Case Material:Aluminum (Jet Black, Rose Gold, Silver) or Titanium (Slate, Gold, Natural)
Display Type:Always-On Retina LTPO3 OLED; Wide-angle; Up to 2000 nits brightness; Minimum 1 nit
Display Size:1220 sq mm (46mm) / 989 sq mm (42mm) display area
Resolution:416 x 496 pixels (46mm); 374 x 446 pixels (42mm)
Always On Display:Yes
Water Resistance:50 m (ISO 22810:2010); Swimproof
Durability:IP6X dust resistant; Crack-resistant front crystal
GPS:L1 GPS, GNSS, Galileo, and BeiDou
Connectivity:LTE and UMTS (GPS + Cellular models); Wi-Fi 4 (802.11n); Bluetooth 5.3; 2nd-gen Ultra Wideband chip
NFC Payments:Apple Pay
Sensors:Electrical heart sensor (ECG); 3rd-gen optical heart sensor; Temperature sensor; Compass; Always-on altimeter; High-g accelerometer; High dynamic range gyroscope; Ambient light sensor; Depth gauge (to 6m); Water temperature sensor
Health Features:Sleep Apnea notifications; Blood Oxygen app; ECG app; Cycle Tracking with retrospective ovulation estimates; High/low heart rate notifications; Irregular rhythm notifications; Medications; Mindfulness; Vitals app
Workout Modes:Strength, HIIT, Pilates, Yoga, Swimming (Pool & Open Water), Running, Cycling, Hiking, Multisport, Tai Chi, Kickboxing, Dance, Cooldown, and more via Workout app
Storage:64GB
Speaker Mic:Speaker (media playback supported); Microphone with Voice Isolation
Calls:Yes (GPS + Cellular models standalone); GPS models via paired iPhone
Battery:Up to 18 hours (normal use); Up to 36 hours (Low Power Mode)
Charging:Fast charge (0–80% in approx. 30 min); Magnetic Fast Charger to USB-C Cable (1m) included
Weight:Aluminum: 36.4g (46mm) / 30g (42mm); Titanium: 41.7g (46mm) / 34.4g (42mm)
Band Sizes:Fits 140–245mm wrists (46mm); Fits 130–200mm wrists (42mm)
Extras:S10 SiP with 4-core Neural Engine; Double tap gesture; On-device Siri; Crash Detection; Fall Detection
✓ Pros:
- • Largest, most advanced display in a standard Apple Watch
- • Thinnest design ever (9.7mm) with lighter weight options
- • Faster charging (80% in 30 mins) aids sleep tracking
- • New health features including Sleep Apnea notifications
- • Includes depth gauge and water temperature sensor
✗ Cons:
- • Battery life remains 18 hours (requires daily charging)
- • Titanium finish commands a significant price premium
- • Requires iPhone Xs or newer (Android incompatible)
- • Some features (Blood Oxygen) strictly dependent on region
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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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Which one is better?
The Samsung Galaxy Watch Ultra is the better buy for most people - its 100-hour battery life crushes the Apple Watch Series 10's 18 hours. That said, grab the Apple Watch Series 10 if you need seamless integration with your iPhone - it's lighter at 1.28 oz.
Who should buy each?
Choose the Apple Watch Series 10 if: you want the largest display at 2,000 nits, you prefer fast charging to 80% in just 30 minutes, or you need advanced health features tailored for iPhone.
Choose the Samsung Galaxy Watch Ultra if: you need multi-day battery life of up to 100 hours, you value extreme durability with a 10 ATM rating, or you want superior GPS accuracy with dual-frequency tracking.
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?
Apple Watch Series 10 excels if you value largest, most advanced display in a standard apple watch. 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.
Affiliate disclosure
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