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2026 comparison
Updated Jan 7, 2026
|Sources: Amazon, ManufacturerApple Watch Ultra 2 vs Samsung Galaxy Watch Ultra
The Apple Watch Ultra 2 is the premium choice here, boasting a remarkable 36 hours of battery life under normal use compared to Samsung Galaxy Watch Ultra's 48 hours. However, Samsung takes the lead with an astonishing 100 hours in Power Saving Mode, a game changer for those who need multi-day battery life. In real-world usage, the key difference lies in functionality and compatibility. The Apple Watch Ultra 2's blood oxygen feature is disabled for units sold in the US, while Samsung restricts health features like ECG and Sleep Apnea detection to its phones. This means if you're an iPhone user, Apple offers a solid experience, but you might miss out on some health tracking capabilities with the Galaxy Watch Ultra if you don't own a Samsung phone.
⚖️ Weight: 2.18 oz vs 2.13 oz💽 Storage: 64 GB vs 32 GB🔋 Battery: 36h (Apple) vs 100h (Samsung in Power Saving Mode)
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Apple Watch Ultra 2
★4.7
(1,082)•Amazon
Compatibility:iPhone Xs or later with iOS 18 or later
Operating System:watchOS
Case Size:49mm (49mm H x 44mm W x 14.4mm D)
Case Material:Aerospace-grade titanium (Natural or Black finish)
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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 Ultra 2
Samsung Galaxy Watch Ultra
Display2 specs
Display SizeKey
Apple Watch Ultra 2
1185 sq mm display area
Samsung Galaxy Watch Ultra
1.5 in (37.3 mm) circular display
Resolution
Apple Watch Ultra 2
410 x 502 pixels (326 ppi)
Samsung Galaxy Watch Ultra
480 x 480 pixels
Performance1 specs
Storage
Apple Watch Ultra 2
64GBWinner
Samsung Galaxy Watch Ultra
32GB
Battery1 specs
Battery CapacityKey
Apple Watch Ultra 2
Up to 36 hours (normal use); Up to 72 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 Ultra 2
61.4 g (Natural Titanium); 61.8 g (Black Titanium) [case only]
Samsung Galaxy Watch Ultra
60.5 g (Body only)Winner
Water Resistance
Apple Watch Ultra 2
100 m (ISO 22810); 40 m recreational high-speed water sports (EN13319)
Samsung Galaxy Watch Ultra
10 ATM + IP68 (ISO 22810 standard); Ocean swimming capable
Software1 specs
Operating System
Apple Watch Ultra 2
watchOS
Samsung Galaxy Watch Ultra
Wear OS 5 powered by Samsung (One UI 6 Watch)
Connectivity1 specs
Connectivity
Apple Watch Ultra 2
LTE and UMTS (Cellular is standard); Wi-Fi 4 (802.11n); Bluetooth 5.3; Second-generation 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 Ultra 2 vs Samsung Galaxy Watch Ultra
Apple Watch Ultra 2
★4.7(1,082)Amazon
Samsung Galaxy Watch Ultra
★4.4(243)Amazon
| Criterion | Apple Watch Ultra 2 | Samsung Galaxy Watch Ultra |
|---|---|---|
| Rating | ★4.7(1,082)Amazon | ★4.4(243)Amazon |
Compatibility | iPhone Xs 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 | Wear OS 5 powered by Samsung (One UI 6 Watch) |
Case Size | 49mm (49mm H x 44mm W x 14.4mm D) | 47.4mm H x 47.1mm W x 12.1mm D |
Case Material | Aerospace-grade titanium (Natural or Black finish) | Titanium (Grade 4) frame with cushion design; Sapphire Crystal glass |
Display Type | Always-On Retina LTPO2 OLED (flat sapphire crystal display) | Super AMOLED; Always-On Display; Peak brightness 3000 nits |
Display Size | 1185 sq mm display area | 1.5 in (37.3 mm) circular display |
Resolution | 410 x 502 pixels (326 ppi) | 480 x 480 pixels |
Always On Display | Yes | Yes |
Water Resistance | 100 m (ISO 22810); 40 m recreational high-speed water sports (EN13319) | 10 ATM + IP68 (ISO 22810 standard); Ocean swimming capable |
Durability | IP6X dust resistant; tested to MIL-STD 810H (altitude, high/low temp, temperature shock, immersion, freeze/thaw, ice/freezing rain, shock/vibration) | MIL-STD-810H certified; Operating temp -20°C to 55°C; 9000m altitude resistance |
GPS | Precision dual-frequency GPS: L1 and L5 (GPS, GNSS, Galileo, and BeiDou) | Dual-frequency GPS (L1+L5); Glonass; Beidou; Galileo |
Connectivity | LTE and UMTS (Cellular is standard); Wi-Fi 4 (802.11n); Bluetooth 5.3; Second-generation 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 app); 3rd-generation optical heart sensor; temperature sensing; depth gauge (±1 m accuracy); water temperature sensor; compass; always-on altimeter; high-g accelerometer; high dynamic range gyroscope; ambient light sensor; blood oxygen sensor (feature availability subject to US patent rulings) | Samsung BioActive Sensor (Optical Bio-signal + Electrical Heart + Bioelectrical Impedance Analysis); Temperature sensor; Accelerometer; Barometer; Gyro sensor; Geomagnetic sensor; Light sensor |
Health Features | ECG app; High/low heart rate notifications; Irregular rhythm notifications; Sleep tracking with stages; Sleep apnea notifications; Vitals app; Cycle tracking with retrospective ovulation estimates; Noise 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 | Customizable Action Button for instant workout start; Advanced running metrics (stride length, ground contact time); Multisport; Swimming; Hiking; Diving (Oceanic+ app required for dive computer functions) | 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 | Dual speakers (40% louder than Series 8); Three-microphone array with beamforming and wind noise mitigation | Speaker (with Siren support); Microphone |
Calls | Yes (Cellular, Wi-Fi, and iPhone tethering) | Yes (LTE standalone or via paired phone) |
Battery | Up to 36 hours (normal use); Up to 72 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 charging capable (0–80% in approx. 1 hour); USB-C Magnetic Fast Charging Cable included | Fast Wireless Charging (WPC Inductive); Proprietary puck required for max speed |
Weight | 61.4 g (Natural Titanium); 61.8 g (Black Titanium) [case only] | 60.5 g (Body only) |
Band Sizes | Trail Loop (S/M, M/L); Alpine Loop (S, M, L); Ocean Band (One Size); fits 130–210mm wrists depending on selection | One Size (fits 145–205mm wrists via Dynamic Lug System) |
Extras | S9 SiP with 4-core Neural Engine; Double tap gesture; On-device Siri; Precision Finding for iPhone 15/16 lineup; 86-decibel Siren; Night Mode (Modular Ultra face) | Quick Button (customizable); 86dB Emergency Siren; Night Mode watch face; Gesture controls (Double Pinch) |
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Apple Watch Ultra 2
Rating:★4.7(1,082)Amazon
Compatibility:iPhone Xs or later with iOS 18 or later
Operating System:watchOS
Case Size:49mm (49mm H x 44mm W x 14.4mm D)
Case Material:Aerospace-grade titanium (Natural or Black finish)
Display Type:Always-On Retina LTPO2 OLED (flat sapphire crystal display)
Display Size:1185 sq mm display area
Resolution:410 x 502 pixels (326 ppi)
Always On Display:Yes
Water Resistance:100 m (ISO 22810); 40 m recreational high-speed water sports (EN13319)
Durability:IP6X dust resistant; tested to MIL-STD 810H (altitude, high/low temp, temperature shock, immersion, freeze/thaw, ice/freezing rain, shock/vibration)
GPS:Precision dual-frequency GPS: L1 and L5 (GPS, GNSS, Galileo, and BeiDou)
Connectivity:LTE and UMTS (Cellular is standard); Wi-Fi 4 (802.11n); Bluetooth 5.3; Second-generation Ultra Wideband chip
NFC Payments:Apple Pay
Sensors:Electrical heart sensor (ECG app); 3rd-generation optical heart sensor; temperature sensing; depth gauge (±1 m accuracy); water temperature sensor; compass; always-on altimeter; high-g accelerometer; high dynamic range gyroscope; ambient light sensor; blood oxygen sensor (feature availability subject to US patent rulings)
Health Features:ECG app; High/low heart rate notifications; Irregular rhythm notifications; Sleep tracking with stages; Sleep apnea notifications; Vitals app; Cycle tracking with retrospective ovulation estimates; Noise app
Workout Modes:Customizable Action Button for instant workout start; Advanced running metrics (stride length, ground contact time); Multisport; Swimming; Hiking; Diving (Oceanic+ app required for dive computer functions)
Storage:64GB
Speaker Mic:Dual speakers (40% louder than Series 8); Three-microphone array with beamforming and wind noise mitigation
Calls:Yes (Cellular, Wi-Fi, and iPhone tethering)
Battery:Up to 36 hours (normal use); Up to 72 hours (Low Power Mode)
Charging:Fast charging capable (0–80% in approx. 1 hour); USB-C Magnetic Fast Charging Cable included
Weight:61.4 g (Natural Titanium); 61.8 g (Black Titanium) [case only]
Band Sizes:Trail Loop (S/M, M/L); Alpine Loop (S, M, L); Ocean Band (One Size); fits 130–210mm wrists depending on selection
Extras:S9 SiP with 4-core Neural Engine; Double tap gesture; On-device Siri; Precision Finding for iPhone 15/16 lineup; 86-decibel Siren; Night Mode (Modular Ultra face)
✓ Pros:
- • Brightest Apple display ever (up to 3,000 nits) for superior outdoor visibility
- • Excellent battery life for an Apple Watch (up to 36 hours standard, 72 hours low power)
- • Rugged titanium build with sapphire crystal and 100m water resistance
- • Fast S9 SiP allows for Double Tap gesture and on-device Siri
- • Precision dual-frequency GPS (L1+L5) offers accurate tracking in dense environments
✗ Cons:
- • Large 49mm x 14.4mm casing is bulky on smaller wrists
- • Blood Oxygen feature is disabled on units sold by Apple in the US (post-Jan 2024)
- • Requires an iPhone to function; no Android compatibility
- • Expensive entry price compared to standard Series models
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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 in Power Saving Mode crushes the Apple Watch Ultra 2's 36 hours. That said, grab the Apple if you’re all-in on the Apple ecosystem and love its display and integration - it’s worth the extra investment for iPhone users.
Who should buy each?
Choose the Apple Watch Ultra 2 if: you want the brightest display at 3,000 nits, need advanced features like precision dual-frequency GPS, or you’re invested in the Apple ecosystem.
Choose the Samsung Galaxy Watch Ultra if: you need multi-day battery life, want a rugged design with 10ATM water resistance, or require advanced health features like ECG and Sleep Apnea detection.
Conclusion
We hope this comparison helps you buy with confidence. Both products are dependable; the right one depends on how you will use it.
Frequently Asked Questions
+Which has better value?
Apple Watch Ultra 2 excels if you value brightest apple display ever (up to 3,000 nits) for superior outdoor visibility. 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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