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2026 comparison
Updated Jan 16, 2026
|Sources: Amazon, ManufacturerOnePlus Watch 2 vs Google Pixel Watch 3 (45mm)
Choosing between OnePlus Watch 2 and Google Pixel Watch 3 (45mm) can be tricky. Both are excellent, but they serve different priorities. This guide highlights what matters for US shoppers.
Ratings: 4.6★ vs 4.4★
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OnePlus Watch 2
★4.6
(538)•Amazon
Compatibility:Android 8.0+ only (requires GMS 23.45.23+); iOS and Android Go edition NOT supported
Operating System:Wear OS 4 + RTOS (Dual-Engine Architecture)
Case Size:47mm (47.0 x 46.6 x 12.1 mm / 1.85 x 1.83 x 0.47 in)
Case Material:Chassis: Stainless steel; Bottom: Plastic (PC/PC+glass fiber); Cover: 2.5D Sapphire Crystal
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Google Pixel Watch 3 (45mm)
★4.4
(1,794)•Amazon
Compatibility:Android 10.0 or newer (requires Google Account and Pixel Watch app); Not compatible with iOS
Operating System:Wear OS 5.0
Case Size:45mm diameter x 12.3mm height
Case Material:100% recycled aluminum housing; Custom 3D Corning Gorilla Glass 5
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Comparison: OnePlus Watch 2 vs Google Pixel Watch 3 (45mm)
OnePlus Watch 2
★4.6(538)Amazon
Google Pixel Watch 3 (45mm)
★4.4(1,794)Amazon
| Criterion | OnePlus Watch 2 | Google Pixel Watch 3 (45mm) |
|---|---|---|
| Rating | ★4.6(538)Amazon | ★4.4(1,794)Amazon |
Compatibility | Android 8.0+ only (requires GMS 23.45.23+); iOS and Android Go edition NOT supported | Android 10.0 or newer (requires Google Account and Pixel Watch app); Not compatible with iOS |
Operating System | Wear OS 4 + RTOS (Dual-Engine Architecture) | Wear OS 5.0 |
Case Size | 47mm (47.0 x 46.6 x 12.1 mm / 1.85 x 1.83 x 0.47 in) | 45mm diameter x 12.3mm height |
Case Material | Chassis: Stainless steel; Bottom: Plastic (PC/PC+glass fiber); Cover: 2.5D Sapphire Crystal | 100% recycled aluminum housing; Custom 3D Corning Gorilla Glass 5 |
Display Type | AMOLED touchscreen | Actua Display (AMOLED LTPO); 1–60Hz responsive refresh rate; Peak brightness 2000 nits; Minimum 1 nit |
Display Size | 1.43 in (3.63 cm) | 1.4 in (approx. 40% more screen area than Pixel Watch 2) |
Resolution | 466 x 466 pixels (326 ppi); 600 nits default brightness | 456 x 456 pixels (320 ppi); DCI-P3 color |
Always On Display | Yes | Yes |
Water Resistance | 5 ATM (50 m) + IP68 (1.5m for 30 min) | 5 ATM (ISO 22810:2010); IP68 (Dust and water resistant) |
Durability | MIL-STD-810H certified; Sapphire crystal face; Operating temp: -20°C to 55°C | IP68 dust and water resistance rating; Custom 3D Corning Gorilla Glass 5 |
GPS | Dual-frequency L1 + L5; Beidou, GPS, Galileo, GLONASS, QZSS | GPS, GLONASS, Galileo, BeiDou, QZSS |
Connectivity | Bluetooth 5.0, Wi-Fi 2.4GHz/5GHz (802.11 a/b/g/n) | 4G LTE (optional); Wi-Fi 6 (802.11ax) 2.4GHz + 5GHz; Bluetooth 5.3; NFC; Ultra-Wideband (UWB) |
NFC Payments | Yes (Google Wallet) | Google Wallet |
Sensors | Optical heart rate; optical pulse oximeter (SpO2); accelerometer; gyroscope; geomagnetic sensor; light sensor; barometer | Compass; Altimeter; Red and infrared sensors for oxygen saturation (SpO2); Multipurpose electrical sensors (ECG); Multi-path optical heart rate sensor; 3-axis accelerometer; Gyroscope; Ambient light sensor; cEDA sensor (stress); Skin temperature sensor; Ultra-Wideband |
Health Features | Sleep tracking (stages, score, snoring risk); OHealth breathing training; stress monitoring; heart rate (high/low alerts, resting); blood oxygen (SpO2) | Loss of Pulse Detection; Daily Readiness; Cardio Load; Target Load; Sleep Profile; ECG app; SpO2; High/low heart rate notifications; Irregular heart rhythm notifications; Skin temperature variations; Body Response (stress detection) |
Workout Modes | 100+ sports modes; 6 auto-detection modes (running, walking, cycling, swimming, rowing, elliptical); professional analysis for running, tennis, skiing | Advanced Running Form (Cadence, Stride Length, Vertical Oscillation, Ground Contact Time); Custom Runs; Interval Training; 40+ exercise modes including HIIT, Pilates, Strength, Cross-country skiing, and more |
Storage | 32 GB ROM + 2 GB RAM (Approx. 4GB reserved for RTOS) | 32GB eMMC flash |
Speaker Mic | Yes (Built-in speaker and microphone) | Built-in speaker; Built-in microphone |
Calls | Yes (Bluetooth calling supported in Smart and Power Saver modes) | Yes (Bluetooth); LTE models support standalone calls |
Battery | 500 mAh; Up to 100 hours (Smart Mode); Up to 48 hours (Heavy Use); Up to 12 days (Power Saver Mode) | 420 mAh (typical); Up to 24 hours (Always-on Display enabled); Up to 36 hours (Battery Saver mode) |
Charging | VOOC Fast Charging (7.5W); 100% in 60 mins; 1 day power in 10 mins | USB-C Fast Charging Cable (included); 0–50% in ~28 min; 0–80% in ~50 min; 0–100% in ~80 min |
Weight | 49 g (Watch only) / 80 g (with Fluororubber strap) | 37 g (without band) |
Band Sizes | Fits wrist sizes 140–210 mm; standard 22 mm quick-release width | Active Band: Small fits 150–185 mm wrists; Large fits 165–215 mm wrists |
Extras | Dual-Engine architecture (Snapdragon W5 + BES2700); Google Play Store; Google Maps; Google Assistant; Flashlight; Compass; Media controls | UWB for Watch Unlock and finding devices; Google Home control; Camera Remote for Pixel phones; Offline Google Maps; Recorder app |
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OnePlus Watch 2
Rating:★4.6(538)Amazon
Compatibility:Android 8.0+ only (requires GMS 23.45.23+); iOS and Android Go edition NOT supported
Operating System:Wear OS 4 + RTOS (Dual-Engine Architecture)
Case Size:47mm (47.0 x 46.6 x 12.1 mm / 1.85 x 1.83 x 0.47 in)
Case Material:Chassis: Stainless steel; Bottom: Plastic (PC/PC+glass fiber); Cover: 2.5D Sapphire Crystal
Display Type:AMOLED touchscreen
Display Size:1.43 in (3.63 cm)
Resolution:466 x 466 pixels (326 ppi); 600 nits default brightness
Always On Display:Yes
Water Resistance:5 ATM (50 m) + IP68 (1.5m for 30 min)
Durability:MIL-STD-810H certified; Sapphire crystal face; Operating temp: -20°C to 55°C
GPS:Dual-frequency L1 + L5; Beidou, GPS, Galileo, GLONASS, QZSS
Connectivity:Bluetooth 5.0, Wi-Fi 2.4GHz/5GHz (802.11 a/b/g/n)
NFC Payments:Yes (Google Wallet)
Sensors:Optical heart rate; optical pulse oximeter (SpO2); accelerometer; gyroscope; geomagnetic sensor; light sensor; barometer
Health Features:Sleep tracking (stages, score, snoring risk); OHealth breathing training; stress monitoring; heart rate (high/low alerts, resting); blood oxygen (SpO2)
Workout Modes:100+ sports modes; 6 auto-detection modes (running, walking, cycling, swimming, rowing, elliptical); professional analysis for running, tennis, skiing
Storage:32 GB ROM + 2 GB RAM (Approx. 4GB reserved for RTOS)
Speaker Mic:Yes (Built-in speaker and microphone)
Calls:Yes (Bluetooth calling supported in Smart and Power Saver modes)
Battery:500 mAh; Up to 100 hours (Smart Mode); Up to 48 hours (Heavy Use); Up to 12 days (Power Saver Mode)
Charging:VOOC Fast Charging (7.5W); 100% in 60 mins; 1 day power in 10 mins
Weight:49 g (Watch only) / 80 g (with Fluororubber strap)
Band Sizes:Fits wrist sizes 140–210 mm; standard 22 mm quick-release width
Extras:Dual-Engine architecture (Snapdragon W5 + BES2700); Google Play Store; Google Maps; Google Assistant; Flashlight; Compass; Media controls
✓ Pros:
- • Groundbreaking 100-hour battery life for a full-featured Wear OS watch
- • Premium build with stainless steel chassis and sapphire crystal standard
- • Dual-frequency GPS (L1+L5) ensures high accuracy in urban environments
- • Fast charging provides a full day's power in just 10 minutes
- • Fluid performance via Snapdragon W5 Gen 1 processor
✗ Cons:
- • Available in only one large size (47mm), which may not fit small wrists
- • No LTE/Cellular option available
- • Strictly incompatible with iOS (iPhone)
- • Crown rotates but does not function for scrolling menus
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Google Pixel Watch 3 (45mm)
Rating:★4.4(1,794)Amazon
Compatibility:Android 10.0 or newer (requires Google Account and Pixel Watch app); Not compatible with iOS
Operating System:Wear OS 5.0
Case Size:45mm diameter x 12.3mm height
Case Material:100% recycled aluminum housing; Custom 3D Corning Gorilla Glass 5
Display Type:Actua Display (AMOLED LTPO); 1–60Hz responsive refresh rate; Peak brightness 2000 nits; Minimum 1 nit
Display Size:1.4 in (approx. 40% more screen area than Pixel Watch 2)
Resolution:456 x 456 pixels (320 ppi); DCI-P3 color
Always On Display:Yes
Water Resistance:5 ATM (ISO 22810:2010); IP68 (Dust and water resistant)
Durability:IP68 dust and water resistance rating; Custom 3D Corning Gorilla Glass 5
GPS:GPS, GLONASS, Galileo, BeiDou, QZSS
Connectivity:4G LTE (optional); Wi-Fi 6 (802.11ax) 2.4GHz + 5GHz; Bluetooth 5.3; NFC; Ultra-Wideband (UWB)
NFC Payments:Google Wallet
Sensors:Compass; Altimeter; Red and infrared sensors for oxygen saturation (SpO2); Multipurpose electrical sensors (ECG); Multi-path optical heart rate sensor; 3-axis accelerometer; Gyroscope; Ambient light sensor; cEDA sensor (stress); Skin temperature sensor; Ultra-Wideband
Health Features:Loss of Pulse Detection; Daily Readiness; Cardio Load; Target Load; Sleep Profile; ECG app; SpO2; High/low heart rate notifications; Irregular heart rhythm notifications; Skin temperature variations; Body Response (stress detection)
Workout Modes:Advanced Running Form (Cadence, Stride Length, Vertical Oscillation, Ground Contact Time); Custom Runs; Interval Training; 40+ exercise modes including HIIT, Pilates, Strength, Cross-country skiing, and more
Storage:32GB eMMC flash
Speaker Mic:Built-in speaker; Built-in microphone
Calls:Yes (Bluetooth); LTE models support standalone calls
Battery:420 mAh (typical); Up to 24 hours (Always-on Display enabled); Up to 36 hours (Battery Saver mode)
Charging:USB-C Fast Charging Cable (included); 0–50% in ~28 min; 0–80% in ~50 min; 0–100% in ~80 min
Weight:37 g (without band)
Band Sizes:Active Band: Small fits 150–185 mm wrists; Large fits 165–215 mm wrists
Extras:UWB for Watch Unlock and finding devices; Google Home control; Camera Remote for Pixel phones; Offline Google Maps; Recorder app
✓ Pros:
- • Significantly larger and brighter display (2000 nits) than predecessors
- • Advanced running metrics (stride, oscillation) without external pods
- • Unique 'Loss of Pulse Detection' safety feature (first-of-kind)
- • Deepest integration with Google ecosystem (Nest, Maps, Pixel Camera)
- • Fast charging helps offset the 24-hour daily battery cycle
✗ Cons:
- • Battery life rated for only 24h with AOD (daily charging required)
- • Strictly incompatible with iPhone (Android 10+ only)
- • Some advanced health insights require Fitbit Premium subscription
- • Uses proprietary charging pin connection (not standard Qi wireless)
As an Amazon Associate I earn from qualifying purchases.
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Which one is better?
Based on ratings and feature balance, Google Pixel Watch 3 (45mm) has a slight edge for specific features. OnePlus Watch 2 remains a strong alternative if its strengths match your needs.
Who should buy each?
Choose OnePlus Watch 2 if:
- You want Groundbreaking 100-hour battery life for a full-featured Wear OS watch, Premium build with stainless steel chassis and sapphire crystal standard
- Rating: 4.6★ (538 reviews)
Choose Google Pixel Watch 3 (45mm) if:
- You prefer Significantly larger and brighter display (2000 nits) than predecessors, Advanced running metrics (stride, oscillation) without external pods
- Rating: 4.4★ (1794 reviews)
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?
OnePlus Watch 2 excels if you value groundbreaking 100-hour battery life for a full-featured wear os watch. Google Pixel Watch 3 (45mm) is better if you prioritize significantly larger and brighter display (2000 nits) than predecessors. 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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