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2026 comparison
Updated Jan 7, 2026
|Sources: Amazon, ManufacturerSamsung Galaxy Watch Ultra vs COROS VERTIX 2S
Get the Samsung Galaxy Watch Ultra unless you prioritize battery life. The numbers: 100 hours in power-saving mode versus an incredible 118 hours with standard GPS on the COROS VERTIX 2S. The Samsung Galaxy Watch Ultra is the flagship option here, but its premium features come with trade-offs. In real-world use, the Samsung Galaxy Watch Ultra shines with a 3000-nit display that makes outdoor visibility a breeze. You'll appreciate its rugged Grade 4 Titanium build, especially if you’re active or adventurous. However, if you need extensive battery life for long treks, the COROS VERTIX 2S’s 40 days of daily use could be a game-changer, making it a solid pick for outdoor enthusiasts.
⚖️ Weight: 2.13 oz vs 3.07 oz📱 Display: 1.5" vs 1.4"🔋 Battery: 118h GPS vs 100h (Power Saving)
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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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COROS VERTIX 2S
★4
(89)•Amazon
Compatibility:Android and iOS (via COROS app)
Operating System:COROS UI
Case Size:50.3mm (50.3 x 50.3 x 16.0 mm / 1.98 x 1.98 x 0.63 in)
Case Material:Bezel: Grade 5 Titanium Alloy with PVD coating; Body: Titanium Alloy with PVD coating; Glass: 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
COROS VERTIX 2S
Display2 specs
Display SizeKey
Samsung Galaxy Watch Ultra
1.5 in (37.3 mm) circular display
COROS VERTIX 2S
1.4 in
Resolution
Samsung Galaxy Watch Ultra
480 x 480 pixels
COROS VERTIX 2S
280 x 280 pixels (64 colors)
Performance1 specs
Storage
Samsung Galaxy Watch Ultra
32GB
COROS VERTIX 2S
32 GB (Music storage and Maps)
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)
COROS VERTIX 2S
Up to 40 days (Daily Use); 118 hours (Standard Full GPS); 73 hours (All Systems On); 43 hours (Dual Frequency)
Design2 specs
Weight
Samsung Galaxy Watch Ultra
60.5 g (Body only)Winner
COROS VERTIX 2S
87 g (with Silicone band) / 70 g (with Nylon band) / 61 g (Body only)
Water Resistance
Samsung Galaxy Watch Ultra
10 ATM + IP68 (ISO 22810 standard); Ocean swimming capable
COROS VERTIX 2S
10 ATM (100 m)
Software1 specs
Operating System
Samsung Galaxy Watch Ultra
Wear OS 5 powered by Samsung (One UI 6 Watch)
COROS VERTIX 2S
COROS UI
Connectivity1 specs
Connectivity
Samsung Galaxy Watch Ultra
LTE (eSIM standard on all models); Wi-Fi 2.4+5GHz; Bluetooth 5.3; NFC
COROS VERTIX 2S
Bluetooth, Wi-Fi (for data sync and firmware updates)
+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 COROS VERTIX 2S
Samsung Galaxy Watch Ultra
★4.4(243)Amazon
COROS VERTIX 2S
★4(89)Amazon
| Criterion | Samsung Galaxy Watch Ultra | COROS VERTIX 2S |
|---|---|---|
| Rating | ★4.4(243)Amazon | ★4(89)Amazon |
Compatibility | Android 11.0 or higher with 1.5GB+ RAM; Samsung Galaxy phone required for Energy Score, ECG, Sleep Apnea, and IHRN features | Android and iOS (via COROS app) |
Operating System | Wear OS 5 powered by Samsung (One UI 6 Watch) | COROS UI |
Case Size | 47.4mm H x 47.1mm W x 12.1mm D | 50.3mm (50.3 x 50.3 x 16.0 mm / 1.98 x 1.98 x 0.63 in) |
Case Material | Titanium (Grade 4) frame with cushion design; Sapphire Crystal glass | Bezel: Grade 5 Titanium Alloy with PVD coating; Body: Titanium Alloy with PVD coating; Glass: Sapphire crystal |
Display Type | Super AMOLED; Always-On Display; Peak brightness 3000 nits | Transflective Memory-in-Pixel (LCD) touchscreen |
Display Size | 1.5 in (37.3 mm) circular display | 1.4 in |
Resolution | 480 x 480 pixels | 280 x 280 pixels (64 colors) |
Always On Display | Yes | Yes (Memory LCD technology) |
Water Resistance | 10 ATM + IP68 (ISO 22810 standard); Ocean swimming capable | 10 ATM (100 m) |
Durability | MIL-STD-810H certified; Operating temp -20°C to 55°C; 9000m altitude resistance | Operating temp: -22°F to 122°F (-30°C to 50°C); scratch-resistant sapphire; titanium chassis |
GPS | Dual-frequency GPS (L1+L5); Glonass; Beidou; Galileo | Dual-Frequency GNSS (L1 + L5); GPS, GLONASS, Galileo, Beidou, QZSS |
Connectivity | LTE (eSIM standard on all models); Wi-Fi 2.4+5GHz; Bluetooth 5.3; NFC | Bluetooth, Wi-Fi (for data sync and firmware updates) |
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 | Next-Gen Optical Heart Rate; Barometric Altimeter; Accelerometer; Gyroscope; 3D Compass; Thermometer; Optical Pulse Oximeter; ECG 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 | HRV Index; Sleep tracking (REM/Deep/Light); SpO2 (Altitude mode); Daily Stress; Recovery time; Resting Heart Rate |
Workout Modes | Multisport tile (Triathlon/Duathlon/Aquathlon); Functional Threshold Power (FTP) for cycling; Race Partner; Track Back; Custom workouts via Quick Button | Multi-pitch climbing, Trail Running, Hiking, Skiing (XC/Touring/Downhill), Surfing (Speed/Wind), Whitewater, Triathlon, Strength |
Storage | 32GB | 32 GB (Music storage and Maps) |
Speaker Mic | Speaker (with Siren support); Microphone | No (Beep alerts and vibration only) |
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 40 days (Daily Use); 118 hours (Standard Full GPS); 73 hours (All Systems On); 43 hours (Dual Frequency) |
Charging | Fast Wireless Charging (WPC Inductive); Proprietary puck required for max speed | COROS proprietary charging cable (USB-A) |
Weight | 60.5 g (Body only) | 87 g (with Silicone band) / 70 g (with Nylon band) / 61 g (Body only) |
Band Sizes | One Size (fits 145–205mm wrists via Dynamic Lug System) | Silicone: 130–240 mm; Nylon: 155–225 mm; 26 mm Quick Fit width |
Extras | Quick Button (customizable); 86dB Emergency Siren; Night Mode watch face; Gesture controls (Double Pinch) | Global offline landscape/topo maps; Music playback (MP3 via Bluetooth); GoPro/Insta360 camera control; Digital Dial navigation; Storm alerts |
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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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COROS VERTIX 2S
Rating:★4(89)Amazon
Compatibility:Android and iOS (via COROS app)
Operating System:COROS UI
Case Size:50.3mm (50.3 x 50.3 x 16.0 mm / 1.98 x 1.98 x 0.63 in)
Case Material:Bezel: Grade 5 Titanium Alloy with PVD coating; Body: Titanium Alloy with PVD coating; Glass: Sapphire crystal
Display Type:Transflective Memory-in-Pixel (LCD) touchscreen
Display Size:1.4 in
Resolution:280 x 280 pixels (64 colors)
Always On Display:Yes (Memory LCD technology)
Water Resistance:10 ATM (100 m)
Durability:Operating temp: -22°F to 122°F (-30°C to 50°C); scratch-resistant sapphire; titanium chassis
GPS:Dual-Frequency GNSS (L1 + L5); GPS, GLONASS, Galileo, Beidou, QZSS
Connectivity:Bluetooth, Wi-Fi (for data sync and firmware updates)
NFC Payments:No (Not supported)
Sensors:Next-Gen Optical Heart Rate; Barometric Altimeter; Accelerometer; Gyroscope; 3D Compass; Thermometer; Optical Pulse Oximeter; ECG Sensor
Health Features:HRV Index; Sleep tracking (REM/Deep/Light); SpO2 (Altitude mode); Daily Stress; Recovery time; Resting Heart Rate
Workout Modes:Multi-pitch climbing, Trail Running, Hiking, Skiing (XC/Touring/Downhill), Surfing (Speed/Wind), Whitewater, Triathlon, Strength
Storage:32 GB (Music storage and Maps)
Speaker Mic:No (Beep alerts and vibration only)
Calls:No (Notification alerts only)
Battery:Up to 40 days (Daily Use); 118 hours (Standard Full GPS); 73 hours (All Systems On); 43 hours (Dual Frequency)
Charging:COROS proprietary charging cable (USB-A)
Weight:87 g (with Silicone band) / 70 g (with Nylon band) / 61 g (Body only)
Band Sizes:Silicone: 130–240 mm; Nylon: 155–225 mm; 26 mm Quick Fit width
Extras:Global offline landscape/topo maps; Music playback (MP3 via Bluetooth); GoPro/Insta360 camera control; Digital Dial navigation; Storm alerts
✓ Pros:
- • Class-leading battery life (118 hours standard GPS, 40 days daily use)
- • Updated next-gen heart rate sensor for improved accuracy over Vertix 2
- • Dual-frequency GNSS provides rock-solid tracking in steep terrain
- • Bombproof build quality with full titanium body and sapphire glass
- • 32GB storage for offline global maps and music without phone dependency
✗ Cons:
- • No NFC payments or streaming music support (Spotify/Apple Music)
- • Large 50.3mm case is very bulky for smaller wrists
- • Screen is less vibrant and lower resolution than AMOLED competitors
- • No built-in speaker or microphone for voice notes or calls
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Which one is better?
The Samsung Galaxy Watch Ultra is the better buy for most people - its 3000-nit display crushes the COROS VERTIX 2S's visibility outdoors. That said, grab the COROS VERTIX 2S if you need unmatched battery life for extended adventures - it lasts 118 hours in GPS mode.
Who should buy each?
Choose the Samsung Galaxy Watch Ultra if: you want the brightest display for outdoor use, need advanced health features like ECG, or prefer a rugged design. (2.13 oz weight)
Choose the COROS VERTIX 2S if: you need 40 days of battery life for daily use, prefer a similar-weight watch, or want a device focused on endurance sports.
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 Watch Ultra excels if you value true multi-day battery life (up to 100h in power saving). COROS VERTIX 2S is better if you prioritize class-leading battery life (118 hours standard gps, 40 days daily use). 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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