← Back to Smartwatches
2026 comparison
Updated Jan 16, 2026
|Sources: Amazon, ManufacturerGoogle Pixel Watch 4 (45mm) vs Samsung Galaxy Watch Ultra
Google Pixel Watch 4 (45mm) vs Samsung Galaxy Watch Ultra: which is the right fit? We cover performance, value, and use cases to make the call easier.
Ratings: 4.5★ vs 4.4★
As an Amazon Associate I earn from qualifying purchases.
Google Pixel Watch 4 (45mm)
★4.5
(405)•Amazon
Compatibility:Android 11.0 or later (Google account required); not compatible with iOS
Operating System:Wear OS 6.0 (pre-installed)
Case Size:45mm (45.0 x 45.0 x 12.3 mm)
Case Material:100% recycled aluminum case; Custom 3D Corning Gorilla Glass 5
Check Amazon Price→
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
Check Amazon Price→
Comparison: Google Pixel Watch 4 (45mm) vs Samsung Galaxy Watch Ultra
Google Pixel Watch 4 (45mm)
★4.5(405)Amazon
Samsung Galaxy Watch Ultra
★4.4(243)Amazon
| Criterion | Google Pixel Watch 4 (45mm) | Samsung Galaxy Watch Ultra |
|---|---|---|
| Rating | ★4.5(405)Amazon | ★4.4(243)Amazon |
Compatibility | Android 11.0 or later (Google account required); not compatible with iOS | 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 6.0 (pre-installed) | Wear OS 5 powered by Samsung (One UI 6 Watch) |
Case Size | 45mm (45.0 x 45.0 x 12.3 mm) | 47.4mm H x 47.1mm W x 12.1mm D |
Case Material | 100% recycled aluminum case; Custom 3D Corning Gorilla Glass 5 | Titanium (Grade 4) frame with cushion design; Sapphire Crystal glass |
Display Type | Actua 360 AMOLED LTPO (1-60Hz) with 15% thinner bezels | Super AMOLED; Always-On Display; Peak brightness 3000 nits |
Display Size | 1.4 in (Actua 360 domed design) | 1.5 in (37.3 mm) circular display |
Resolution | 456 x 456 pixels (320 ppi) | 480 x 480 pixels |
Always On Display | Yes (Up to 3,000 nits peak brightness, 1 nit minimum) | Yes |
Water Resistance | 5 ATM (50 meters) | 10 ATM + IP68 (ISO 22810 standard); Ocean swimming capable |
Durability | IP68 dust and water resistance; Custom 3D Corning Gorilla Glass 5 | MIL-STD-810H certified; Operating temp -20°C to 55°C; 9000m altitude resistance |
GPS | Dual-frequency GPS (L1+L5); GLONASS, Galileo, BeiDou, QZSS, NavIC | Dual-frequency GPS (L1+L5); Glonass; Beidou; Galileo |
Connectivity | Bluetooth 6.0; Wi-Fi 6 (802.11ax) 2.4GHz/5GHz; NFC; Ultra-Wideband (UWB); LTE version available | LTE (eSIM standard on all models); Wi-Fi 2.4+5GHz; Bluetooth 5.3; NFC |
NFC Payments | Google Wallet | Samsung Wallet / Google Wallet |
Sensors | Compass; Altimeter; Red/Infrared SpO2 sensors; Multipurpose electrical sensors (ECG); Multi-path optical heart rate sensor; 3-axis accelerometer; Gyroscope; Ambient light sensor; cEDA sensor (stress); Skin temperature sensor; Barometer; Magnetometer | Samsung BioActive Sensor (Optical Bio-signal + Electrical Heart + Bioelectrical Impedance Analysis); Temperature sensor; Accelerometer; Barometer; Gyro sensor; Geomagnetic sensor; Light sensor |
Health Features | Gemini-powered Health Coach; Sleep Apnea detection; Daily Readiness; Cardio Load; ECG app; High/low heart rate notifications; Stress management (cEDA); Skin temperature variation | 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 | 40+ exercise modes; Auto-workout detection; Custom runs; Real-time guidance; Pace training; Heart Zone training | Multisport tile (Triathlon/Duathlon/Aquathlon); Functional Threshold Power (FTP) for cycling; Race Partner; Track Back; Custom workouts via Quick Button |
Storage | 32GB eMMC flash | 32GB |
Speaker Mic | Built-in speaker (improved for Gemini); Microphone | Speaker (with Siren support); Microphone |
Calls | Yes (via Bluetooth or standalone on LTE models) | Yes (LTE standalone or via paired phone) |
Battery | 455 mAh; Up to 40 hours with Always-On Display; Up to 72 hours in Battery Saver 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 (50% in 15 min; 80% in 30 min; 100% in 60 min) via 5-pin magnetic dock | Fast Wireless Charging (WPC Inductive); Proprietary puck required for max speed |
Weight | 36.7 g (without band) | 60.5 g (Body only) |
Band Sizes | Active Band included (Small: 150–185 mm; Large: 165–215 mm) | One Size (fits 145–205mm wrists via Dynamic Lug System) |
Extras | Snapdragon W5 Gen 2 chip; Cortex M55 co-processor; Satellite SOS (LTE only); Offline Google Maps; Safety Check; Fall Detection | Quick Button (customizable); 86dB Emergency Siren; Night Mode watch face; Gesture controls (Double Pinch) |
| Pros |
|
|
| Cons |
|
|
As an Amazon Associate I earn from qualifying purchases. | Check Price on Amazon→ | Check Price on Amazon→ |
Google Pixel Watch 4 (45mm)
Rating:★4.5(405)Amazon
Compatibility:Android 11.0 or later (Google account required); not compatible with iOS
Operating System:Wear OS 6.0 (pre-installed)
Case Size:45mm (45.0 x 45.0 x 12.3 mm)
Case Material:100% recycled aluminum case; Custom 3D Corning Gorilla Glass 5
Display Type:Actua 360 AMOLED LTPO (1-60Hz) with 15% thinner bezels
Display Size:1.4 in (Actua 360 domed design)
Resolution:456 x 456 pixels (320 ppi)
Always On Display:Yes (Up to 3,000 nits peak brightness, 1 nit minimum)
Water Resistance:5 ATM (50 meters)
Durability:IP68 dust and water resistance; Custom 3D Corning Gorilla Glass 5
GPS:Dual-frequency GPS (L1+L5); GLONASS, Galileo, BeiDou, QZSS, NavIC
Connectivity:Bluetooth 6.0; Wi-Fi 6 (802.11ax) 2.4GHz/5GHz; NFC; Ultra-Wideband (UWB); LTE version available
NFC Payments:Google Wallet
Sensors:Compass; Altimeter; Red/Infrared SpO2 sensors; Multipurpose electrical sensors (ECG); Multi-path optical heart rate sensor; 3-axis accelerometer; Gyroscope; Ambient light sensor; cEDA sensor (stress); Skin temperature sensor; Barometer; Magnetometer
Health Features:Gemini-powered Health Coach; Sleep Apnea detection; Daily Readiness; Cardio Load; ECG app; High/low heart rate notifications; Stress management (cEDA); Skin temperature variation
Workout Modes:40+ exercise modes; Auto-workout detection; Custom runs; Real-time guidance; Pace training; Heart Zone training
Storage:32GB eMMC flash
Speaker Mic:Built-in speaker (improved for Gemini); Microphone
Calls:Yes (via Bluetooth or standalone on LTE models)
Battery:455 mAh; Up to 40 hours with Always-On Display; Up to 72 hours in Battery Saver mode
Charging:Fast charging (50% in 15 min; 80% in 30 min; 100% in 60 min) via 5-pin magnetic dock
Weight:36.7 g (without band)
Band Sizes:Active Band included (Small: 150–185 mm; Large: 165–215 mm)
Extras:Snapdragon W5 Gen 2 chip; Cortex M55 co-processor; Satellite SOS (LTE only); Offline Google Maps; Safety Check; Fall Detection
✓ Pros:
- • Battery life significantly improved to 40 hours with AOD enabled
- • Brighter Actua 360 display (3,000 nits) with thinner bezels
- • Faster charging (0-50% in just 15 minutes)
- • New Satellite SOS feature for emergency communication (LTE models)
✗ Cons:
- • Design remains largely unchanged (still uses Gorilla Glass 5)
- • Requires Android 11.0+ (no iOS support)
- • Case thickness (12.3mm) is substantial compared to competitors
- • Satellite SOS requires an active LTE plan/carrier support
As an Amazon Associate I earn from qualifying purchases.
Check Price on Amazon→
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
As an Amazon Associate I earn from qualifying purchases.
Check Price on Amazon→
Which one is better?
Overall, Google Pixel Watch 4 (45mm) delivers better satisfaction. Samsung Galaxy Watch Ultra is still a quality option with specific strengths worth considering.
Who should buy each?
Google Pixel Watch 4 (45mm) excels at: Battery life significantly improved to 40 hours with AOD enabled, Brighter Actua 360 display (3,000 nits) with thinner bezels
Watch for: Design remains largely unchanged (still uses Gorilla Glass 5)
Samsung Galaxy Watch Ultra excels at: True multi-day battery life (up to 100h in power saving), Extremely durable Grade 4 Titanium build with 10ATM rating
Watch for: Large 47mm square-circle design may not fit smaller wrists
Conclusion
Google Pixel Watch 4 (45mm) and Samsung Galaxy Watch Ultra 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?
Google Pixel Watch 4 (45mm) excels if you value battery life significantly improved to 40 hours with aod enabled. 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
PageBen uses Amazon affiliate links. If you purchase through our links, we may earn a commission at no extra cost to you. This supports independent content for US shoppers.