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2026 comparison
Updated Jan 7, 2026
|Sources: Amazon, ManufacturerSamsung Galaxy Watch6 Classic (47mm, Bluetooth) vs Apple Watch Ultra 3
The Samsung Galaxy Watch6 Classic (47mm, Bluetooth) is the premium option here, while the Apple Watch Ultra 3 is the flagship contender. You'd expect Samsung to dominate, but the Ultra 3's incredible battery life and rugged build really set it apart for adventure seekers. In real-world use, the Watch6 Classic offers a stunning 1.5-inch Super AMOLED display, but it only lasts up to 40 hours. On the flip side, the Ultra 3 shines with a massive 72-hour battery in Low Power Mode, making it perfect for long trips without frequent recharging. You'll appreciate the difference when you're out and about, especially if you hate charging devices daily.
⚖️ Weight: 2.08 oz vs 2.18 oz💽 Storage: 16 GB vs 64 GB🔋 Battery: 40h vs 72h
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Samsung Galaxy Watch6 Classic (47mm, Bluetooth)
★3.9
(565)•Amazon
Compatibility:Android 10.0 or higher with 1.5GB+ RAM (iOS NOT supported; some health features like ECG require a Samsung Galaxy phone)
Operating System:Wear OS 4 (Powered by Samsung, One UI 5 Watch)
Case Size:47mm (46.5 x 46.5 x 10.9 mm / 1.83 x 1.83 x 0.43 in)
Case Material:Case: Stainless Steel; Glass: Sapphire Crystal; Strap: Hybrid Eco-Leather (standard US retail)
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Apple Watch Ultra 3
★4.7
(425)•Amazon
Compatibility:iPhone Xs or later (incl. iPhone SE 2nd gen+) 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)
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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 Watch6 Classic (47mm, Bluetooth)
Apple Watch Ultra 3
Display2 specs
Display SizeKey
Samsung Galaxy Watch6 Classic (47mm, Bluetooth)
1.5 in (37.3 mm)
Apple Watch Ultra 3
1245 sq mm display area
Resolution
Samsung Galaxy Watch6 Classic (47mm, Bluetooth)
480 x 480 pixels
Apple Watch Ultra 3
422 x 514 pixels (326 ppi)
Performance1 specs
Storage
Samsung Galaxy Watch6 Classic (47mm, Bluetooth)
16 GB (Internal) / 2 GB RAM
Apple Watch Ultra 3
64GBWinner
Battery1 specs
Battery CapacityKey
Samsung Galaxy Watch6 Classic (47mm, Bluetooth)
425 mAh; Up to 40 hours (AOD Off); Up to 30 hours (AOD On)
Apple Watch Ultra 3
Up to 36 hours (normal use); Up to 72 hours (Low Power Mode)
Design2 specs
Weight
Samsung Galaxy Watch6 Classic (47mm, Bluetooth)
59.0 g / 2.08 oz (Case weight only)Winner
Apple Watch Ultra 3
61.8 g
Water Resistance
Samsung Galaxy Watch6 Classic (47mm, Bluetooth)
5 ATM + IP68 (Water resistant up to 50 meters)
Apple Watch Ultra 3
100 m (ISO 22810); EN13319 recreational scuba diving to 40 m (130 ft)
Software1 specs
Operating System
Samsung Galaxy Watch6 Classic (47mm, Bluetooth)
Wear OS 4 (Powered by Samsung, One UI 5 Watch)
Apple Watch Ultra 3
watchOS
Connectivity1 specs
Connectivity
Samsung Galaxy Watch6 Classic (47mm, Bluetooth)
Bluetooth 5.3; Wi-Fi 2.4+5GHz (802.11 a/b/g/n); NFC
Apple Watch Ultra 3
LTE and UMTS; Wi-Fi 4 (802.11n); Bluetooth 5.3; U2 Ultra Wideband chip
+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 Watch6 Classic (47mm, Bluetooth) vs Apple Watch Ultra 3
Samsung Galaxy Watch6 Classic (47mm, Bluetooth)
★3.9(565)Amazon
Apple Watch Ultra 3
★4.7(425)Amazon
| Criterion | Samsung Galaxy Watch6 Classic (47mm, Bluetooth) | Apple Watch Ultra 3 |
|---|---|---|
| Rating | ★3.9(565)Amazon | ★4.7(425)Amazon |
Compatibility | Android 10.0 or higher with 1.5GB+ RAM (iOS NOT supported; some health features like ECG require a Samsung Galaxy phone) | iPhone Xs or later (incl. iPhone SE 2nd gen+) with iOS 18 or later |
Operating System | Wear OS 4 (Powered by Samsung, One UI 5 Watch) | watchOS |
Case Size | 47mm (46.5 x 46.5 x 10.9 mm / 1.83 x 1.83 x 0.43 in) | 49mm (49mm H x 44mm W x 14.4mm D) |
Case Material | Case: Stainless Steel; Glass: Sapphire Crystal; Strap: Hybrid Eco-Leather (standard US retail) | Aerospace-grade titanium (Natural or Black) |
Display Type | Super AMOLED touchscreen (Always-On capable) | Always-On Retina display (LTPO3 OLED) with flat sapphire crystal |
Display Size | 1.5 in (37.3 mm) | 1245 sq mm display area |
Resolution | 480 x 480 pixels | 422 x 514 pixels (326 ppi) |
Always On Display | Yes | Yes |
Water Resistance | 5 ATM + IP68 (Water resistant up to 50 meters) | 100 m (ISO 22810); EN13319 recreational scuba diving to 40 m (130 ft) |
Durability | MIL-STD-810H compliant (Environmental engineering considerations and laboratory tests) | IP6X dust resistance; MIL-STD 810H tested |
GPS | GPS, GLONASS, Galileo, BeiDou | Precision dual-frequency GPS (L1 and L5) |
Connectivity | Bluetooth 5.3; Wi-Fi 2.4+5GHz (802.11 a/b/g/n); NFC | LTE and UMTS; Wi-Fi 4 (802.11n); Bluetooth 5.3; U2 Ultra Wideband chip |
NFC Payments | Yes (Samsung Wallet, Google Wallet) | Apple Pay |
Sensors | Samsung BioActive Sensor (Optical Heart Rate + Electrical Heart + Bioelectrical Impedance Analysis); Temperature Sensor; Accelerometer; Barometer; Gyro Sensor; Geomagnetic Sensor; Light Sensor; 3D Hall Sensor | Electrical heart (ECG), optical heart (Gen 3), temperature (body/water), blood oxygen, depth gauge, altimeter, accelerometer, gyroscope |
Health Features | Body Composition (BIA); ECG (AFib detection); Sleep Coaching & Analysis; Blood Oxygen (SpO2); Cycle Tracking (Skin Temperature); Irregular Heart Rhythm Notification | ECG, Blood Oxygen, Heart Rate zones, Sleep Tracking/Apnea notifications, Vitals app, Cycle Tracking with retrospective ovulation estimates |
Workout Modes | 90+ exercises; Automatic workout detection (Walking, Running, Cycling, Rowing, Elliptical, Dynamic High-Intensity, Swimming); Personalized Heart Rate Zones | Multisport, Running (Advanced Metrics), Hiking (Topographic Maps), Ocean Diving, Swimming, Cycling |
Storage | 16 GB (Internal) / 2 GB RAM | 64GB |
Speaker Mic | Yes (Built-in speaker and microphone) | Dual speakers; three-microphone array with beamforming and wind noise mitigation; 86dB Siren |
Calls | Yes (Make and answer calls via Bluetooth) | Yes (via Cellular or Wi-Fi) |
Battery | 425 mAh; Up to 40 hours (AOD Off); Up to 30 hours (AOD On) | Up to 36 hours (normal use); Up to 72 hours (Low Power Mode) |
Charging | Fast Wireless Charging (WPC-based puck included; no wall adapter) | Fast charging (0–80% in approx. 1 hour) with USB-C Magnetic Fast Charger |
Weight | 59.0 g / 2.08 oz (Case weight only) | 61.8 g |
Band Sizes | Fits wrist sizes ~145–205 mm (M/L strap); Uses standard 20mm width (new One-Click mechanism, backwards compatible) | Fits 130–210mm wrists (Alpine Loop, Trail Loop, Ocean Band) |
Extras | Physical Rotating Bezel for navigation; Camera Controller; SmartThings smart home control; Fall Detection; SOS | S10 SiP, Double Tap gesture, On-device Siri, Precision Finding for iPhone, Flashlight/Night Mode, Crash Detection, Fall Detection |
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Samsung Galaxy Watch6 Classic (47mm, Bluetooth)
Rating:★3.9(565)Amazon
Compatibility:Android 10.0 or higher with 1.5GB+ RAM (iOS NOT supported; some health features like ECG require a Samsung Galaxy phone)
Operating System:Wear OS 4 (Powered by Samsung, One UI 5 Watch)
Case Size:47mm (46.5 x 46.5 x 10.9 mm / 1.83 x 1.83 x 0.43 in)
Case Material:Case: Stainless Steel; Glass: Sapphire Crystal; Strap: Hybrid Eco-Leather (standard US retail)
Display Type:Super AMOLED touchscreen (Always-On capable)
Display Size:1.5 in (37.3 mm)
Resolution:480 x 480 pixels
Always On Display:Yes
Water Resistance:5 ATM + IP68 (Water resistant up to 50 meters)
Durability:MIL-STD-810H compliant (Environmental engineering considerations and laboratory tests)
GPS:GPS, GLONASS, Galileo, BeiDou
Connectivity:Bluetooth 5.3; Wi-Fi 2.4+5GHz (802.11 a/b/g/n); NFC
NFC Payments:Yes (Samsung Wallet, Google Wallet)
Sensors:Samsung BioActive Sensor (Optical Heart Rate + Electrical Heart + Bioelectrical Impedance Analysis); Temperature Sensor; Accelerometer; Barometer; Gyro Sensor; Geomagnetic Sensor; Light Sensor; 3D Hall Sensor
Health Features:Body Composition (BIA); ECG (AFib detection); Sleep Coaching & Analysis; Blood Oxygen (SpO2); Cycle Tracking (Skin Temperature); Irregular Heart Rhythm Notification
Workout Modes:90+ exercises; Automatic workout detection (Walking, Running, Cycling, Rowing, Elliptical, Dynamic High-Intensity, Swimming); Personalized Heart Rate Zones
Storage:16 GB (Internal) / 2 GB RAM
Speaker Mic:Yes (Built-in speaker and microphone)
Calls:Yes (Make and answer calls via Bluetooth)
Battery:425 mAh; Up to 40 hours (AOD Off); Up to 30 hours (AOD On)
Charging:Fast Wireless Charging (WPC-based puck included; no wall adapter)
Weight:59.0 g / 2.08 oz (Case weight only)
Band Sizes:Fits wrist sizes ~145–205 mm (M/L strap); Uses standard 20mm width (new One-Click mechanism, backwards compatible)
Extras:Physical Rotating Bezel for navigation; Camera Controller; SmartThings smart home control; Fall Detection; SOS
✓ Pros:
- • Iconic physical rotating bezel provides intuitive, smudge-free navigation
- • Comprehensive health suite including FDA-cleared ECG and Body Composition (BIA)
- • Stunning 1.5-inch Super AMOLED display with sapphire crystal protection
- • High-quality stainless steel build feels more premium than aluminum competitors
- • Seamless ecosystem integration with Samsung Galaxy phones
✗ Cons:
- • Battery life (max 40h) requires daily charging compared to multi-day competitors
- • Key health features (ECG, IHRN) are locked to Samsung phones only
- • Not compatible with iPhones (iOS)
- • Charging speed is decent but slower than OnePlus Watch 2's rapid charge
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Check Price on Amazon→
Apple Watch Ultra 3
Rating:★4.7(425)Amazon
Compatibility:iPhone Xs or later (incl. iPhone SE 2nd gen+) 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)
Display Type:Always-On Retina display (LTPO3 OLED) with flat sapphire crystal
Display Size:1245 sq mm display area
Resolution:422 x 514 pixels (326 ppi)
Always On Display:Yes
Water Resistance:100 m (ISO 22810); EN13319 recreational scuba diving to 40 m (130 ft)
Durability:IP6X dust resistance; MIL-STD 810H tested
GPS:Precision dual-frequency GPS (L1 and L5)
Connectivity:LTE and UMTS; Wi-Fi 4 (802.11n); Bluetooth 5.3; U2 Ultra Wideband chip
NFC Payments:Apple Pay
Sensors:Electrical heart (ECG), optical heart (Gen 3), temperature (body/water), blood oxygen, depth gauge, altimeter, accelerometer, gyroscope
Health Features:ECG, Blood Oxygen, Heart Rate zones, Sleep Tracking/Apnea notifications, Vitals app, Cycle Tracking with retrospective ovulation estimates
Workout Modes:Multisport, Running (Advanced Metrics), Hiking (Topographic Maps), Ocean Diving, Swimming, Cycling
Storage:64GB
Speaker Mic:Dual speakers; three-microphone array with beamforming and wind noise mitigation; 86dB Siren
Calls:Yes (via Cellular or Wi-Fi)
Battery:Up to 36 hours (normal use); Up to 72 hours (Low Power Mode)
Charging:Fast charging (0–80% in approx. 1 hour) with USB-C Magnetic Fast Charger
Weight:61.8 g
Band Sizes:Fits 130–210mm wrists (Alpine Loop, Trail Loop, Ocean Band)
Extras:S10 SiP, Double Tap gesture, On-device Siri, Precision Finding for iPhone, Flashlight/Night Mode, Crash Detection, Fall Detection
✓ Pros:
- • Class-leading 3,000-nit display brightness
- • Rugged titanium build with 100m water resistance
- • Excellent battery life relative to category (up to 72h low power)
- • Precision dual-frequency GPS ideal for outdoor sports
✗ Cons:
- • Large 49mm case may be too bulky for smaller wrists
- • High price point
- • Exclusive to iPhone ecosystem
- • Minimal design changes from previous generation
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Which one is better?
The Apple Watch Ultra 3 is the better buy for most people - its 72-hour battery life crushes the Galaxy Watch6 Classic's 40-hour limit. That said, grab the Samsung if you prefer a more compact design at 2.08 ounces - it's lighter and offers that iconic rotating bezel.
Who should buy each?
Choose the Samsung Galaxy Watch6 Classic (47mm, Bluetooth) if: you love intuitive navigation with a rotating bezel, want a premium design with stainless steel, or you're looking for a solid smartwatch that pairs well with Samsung phones. (2.08 oz weight, 16 GB storage)
Choose the Apple Watch Ultra 3 if: you need extended battery life for multi-day adventures, want a rugged watch with 100m water resistance, or you prefer a larger display for outdoor activities.
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?
Samsung Galaxy Watch6 Classic (47mm, Bluetooth) excels if you value iconic physical rotating bezel provides intuitive, smudge-free navigation. Apple Watch Ultra 3 is better if you prioritize class-leading 3,000-nit display brightness. 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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