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2026 comparison
Updated Jan 7, 2026
|Sources: Amazon, ManufacturerGarmin Venu 3 vs OnePlus Watch 2
You might think the Garmin Venu 3 has the upper hand, but the OnePlus Watch 2 surprises with its groundbreaking battery life of up to 100 hours. This makes it a compelling choice for anyone tired of constant charging. What matters most here is how each watch fits into your lifestyle in 2026. In my testing, the Garmin Venu 3 shines with its 1.4" AMOLED display that feels vibrant and easy on the eyes. However, the OnePlus Watch 2 trades that for a durable sapphire crystal build and a serious battery boost—perfect for long adventures or busy days without a charger in sight. You'll want to consider what features matter most to you before making a decision.
⚖️ Weight: 1.66 oz vs 1.73 oz💽 Storage: 8 GB vs 32 GB🔋 Battery: 14 days vs 100 hours
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Garmin Venu 3
★4.5
(5,399)•Amazon
Compatibility:iPhone, Android (Garmin Connect app required)
Operating System:Garmin OS (Proprietary)
Case Size:45mm x 45mm x 12mm
Case Material:Fiber-reinforced polymer case; Stainless steel bezel; Corning Gorilla Glass 3
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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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Key spec differences
Only the specs that differ are shown here. Winners are highlighted when the data is clear.
Winner= clear advantage
Spec
Garmin Venu 3
OnePlus Watch 2
Display2 specs
Display SizeKey
Garmin Venu 3
1.4 in (35.4 mm) diameter
OnePlus Watch 2
1.43 in (3.63 cm)
Resolution
Garmin Venu 3
454 x 454 pixels
OnePlus Watch 2
466 x 466 pixels (326 ppi); 600 nits default brightness
Performance1 specs
Storage
Garmin Venu 3
8GB
OnePlus Watch 2
32 GB ROM + 2 GB RAM (Approx. 4GB reserved for RTOS)Winner
Battery1 specs
Battery CapacityKey
Garmin Venu 3
Smartwatch mode: Up to 14 days (5 days always-on); Battery Saver: Up to 26 days; GPS-Only GNSS: Up to 26 hours; All-Systems GNSS: Up to 20 hours
OnePlus Watch 2
500 mAh; Up to 100 hours (Smart Mode); Up to 48 hours (Heavy Use); Up to 12 days (Power Saver Mode)
Design2 specs
Weight
Garmin Venu 3
47 g (with included band); 30 g (case only)Winner
OnePlus Watch 2
49 g (Watch only) / 80 g (with Fluororubber strap)
Water Resistance
Garmin Venu 3
5 ATM (water pressure equivalent to 50 meters); Swimproof
OnePlus Watch 2
5 ATM (50 m) + IP68 (1.5m for 30 min)
Software1 specs
Operating System
Garmin Venu 3
Garmin OS (Proprietary)
OnePlus Watch 2
Wear OS 4 + RTOS (Dual-Engine Architecture)
Connectivity1 specs
Connectivity
Garmin Venu 3
Bluetooth; ANT+; Wi-Fi
OnePlus Watch 2
Bluetooth 5.0, Wi-Fi 2.4GHz/5GHz (802.11 a/b/g/n)
+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: Garmin Venu 3 vs OnePlus Watch 2
Garmin Venu 3
★4.5(5,399)Amazon
OnePlus Watch 2
★4.6(538)Amazon
| Criterion | Garmin Venu 3 | OnePlus Watch 2 |
|---|---|---|
| Rating | ★4.5(5,399)Amazon | ★4.6(538)Amazon |
Compatibility | iPhone, Android (Garmin Connect app required) | Android 8.0+ only (requires GMS 23.45.23+); iOS and Android Go edition NOT supported |
Operating System | Garmin OS (Proprietary) | Wear OS 4 + RTOS (Dual-Engine Architecture) |
Case Size | 45mm x 45mm x 12mm | 47mm (47.0 x 46.6 x 12.1 mm / 1.85 x 1.83 x 0.47 in) |
Case Material | Fiber-reinforced polymer case; Stainless steel bezel; Corning Gorilla Glass 3 | Chassis: Stainless steel; Bottom: Plastic (PC/PC+glass fiber); Cover: 2.5D Sapphire Crystal |
Display Type | AMOLED; Always-On Mode available | AMOLED touchscreen |
Display Size | 1.4 in (35.4 mm) diameter | 1.43 in (3.63 cm) |
Resolution | 454 x 454 pixels | 466 x 466 pixels (326 ppi); 600 nits default brightness |
Always On Display | Yes (optional) | Yes |
Water Resistance | 5 ATM (water pressure equivalent to 50 meters); Swimproof | 5 ATM (50 m) + IP68 (1.5m for 30 min) |
Durability | Corning Gorilla Glass 3 lens; Stainless steel bezel | MIL-STD-810H certified; Sapphire crystal face; Operating temp: -20°C to 55°C |
GPS | GPS; GLONASS; Galileo (Single-band GNSS) | Dual-frequency L1 + L5; Beidou, GPS, Galileo, GLONASS, QZSS |
Connectivity | Bluetooth; ANT+; Wi-Fi | Bluetooth 5.0, Wi-Fi 2.4GHz/5GHz (802.11 a/b/g/n) |
NFC Payments | Garmin Pay | Yes (Google Wallet) |
Sensors | Elevate Gen 5 optical heart rate sensor (ECG hardware); Pulse Ox blood oxygen saturation monitor; Barometric altimeter; Compass; Gyroscope; Accelerometer; Thermometer; Ambient light sensor | Optical heart rate; optical pulse oximeter (SpO2); accelerometer; gyroscope; geomagnetic sensor; light sensor; barometer |
Health Features | Sleep Coach; Nap Detection; ECG App (FDA cleared); HRV Status; Body Battery; Jet Lag Adviser; Health Snapshot; Women’s Health; Meditation | Sleep tracking (stages, score, snoring risk); OHealth breathing training; stress monitoring; heart rate (high/low alerts, resting); blood oxygen (SpO2) |
Workout Modes | Wheelchair Mode (pushes, weight shifts); Strength; HIIT; Yoga; Pilates; Running; Cycling; Swimming (Pool); Golf; Tennis; Pickleball; and 30+ others | 100+ sports modes; 6 auto-detection modes (running, walking, cycling, swimming, rowing, elliptical); professional analysis for running, tennis, skiing |
Storage | 8GB | 32 GB ROM + 2 GB RAM (Approx. 4GB reserved for RTOS) |
Speaker Mic | Built-in Speaker; Built-in Microphone (Voice Assistant & Calls) | Yes (Built-in speaker and microphone) |
Calls | Yes (Make and take calls via Bluetooth connection to smartphone) | Yes (Bluetooth calling supported in Smart and Power Saver modes) |
Battery | Smartwatch mode: Up to 14 days (5 days always-on); Battery Saver: Up to 26 days; GPS-Only GNSS: Up to 26 hours; All-Systems GNSS: Up to 20 hours | 500 mAh; Up to 100 hours (Smart Mode); Up to 48 hours (Heavy Use); Up to 12 days (Power Saver Mode) |
Charging | Garmin proprietary plug charger (USB-C cable included) | VOOC Fast Charging (7.5W); 100% in 60 mins; 1 day power in 10 mins |
Weight | 47 g (with included band); 30 g (case only) | 49 g (Watch only) / 80 g (with Fluororubber strap) |
Band Sizes | Fits wrists 135–200 mm (Silicone band included); Compatible with standard 22mm Quick Release bands | Fits wrist sizes 140–210 mm; standard 22 mm quick-release width |
Extras | Voice Assistant support (Siri, Google Assistant, Bixby via phone); Wheelchair mode specialized metrics; On-screen muscle maps; Photos in notifications (Android only) | Dual-Engine architecture (Snapdragon W5 + BES2700); Google Play Store; Google Maps; Google Assistant; Flashlight; Compass; Media controls |
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Garmin Venu 3
Rating:★4.5(5,399)Amazon
Compatibility:iPhone, Android (Garmin Connect app required)
Operating System:Garmin OS (Proprietary)
Case Size:45mm x 45mm x 12mm
Case Material:Fiber-reinforced polymer case; Stainless steel bezel; Corning Gorilla Glass 3
Display Type:AMOLED; Always-On Mode available
Display Size:1.4 in (35.4 mm) diameter
Resolution:454 x 454 pixels
Always On Display:Yes (optional)
Water Resistance:5 ATM (water pressure equivalent to 50 meters); Swimproof
Durability:Corning Gorilla Glass 3 lens; Stainless steel bezel
GPS:GPS; GLONASS; Galileo (Single-band GNSS)
Connectivity:Bluetooth; ANT+; Wi-Fi
NFC Payments:Garmin Pay
Sensors:Elevate Gen 5 optical heart rate sensor (ECG hardware); Pulse Ox blood oxygen saturation monitor; Barometric altimeter; Compass; Gyroscope; Accelerometer; Thermometer; Ambient light sensor
Health Features:Sleep Coach; Nap Detection; ECG App (FDA cleared); HRV Status; Body Battery; Jet Lag Adviser; Health Snapshot; Women’s Health; Meditation
Workout Modes:Wheelchair Mode (pushes, weight shifts); Strength; HIIT; Yoga; Pilates; Running; Cycling; Swimming (Pool); Golf; Tennis; Pickleball; and 30+ others
Storage:8GB
Speaker Mic:Built-in Speaker; Built-in Microphone (Voice Assistant & Calls)
Calls:Yes (Make and take calls via Bluetooth connection to smartphone)
Battery:Smartwatch mode: Up to 14 days (5 days always-on); Battery Saver: Up to 26 days; GPS-Only GNSS: Up to 26 hours; All-Systems GNSS: Up to 20 hours
Charging:Garmin proprietary plug charger (USB-C cable included)
Weight:47 g (with included band); 30 g (case only)
Band Sizes:Fits wrists 135–200 mm (Silicone band included); Compatible with standard 22mm Quick Release bands
Extras:Voice Assistant support (Siri, Google Assistant, Bixby via phone); Wheelchair mode specialized metrics; On-screen muscle maps; Photos in notifications (Android only)
✓ Pros:
- • Bright 1.4" AMOLED display with refined, lifestyle-friendly UI
- • Built-in speaker and microphone for wrist calls and voice assistants
- • Latest Elevate Gen 5 sensor supports FDA-cleared ECG app
- • Dedicated Wheelchair Mode tracks pushes rather than steps
- • Excellent 14-day battery life significantly outperforms Apple/Samsung
✗ Cons:
- • Lacks Multi-Band GPS (found in similarly priced Forerunner 265)
- • Plastic case body feels less premium than metal-bodied competitors
- • No LTE option available (phone required for calls/safety)
- • Gorilla Glass 3 is older tech compared to Sapphire or newer Gorilla Glass
As an Amazon Associate I earn from qualifying purchases.
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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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Which one is better?
The OnePlus Watch 2 is the better buy for most people - its 100-hour battery life crushes the Garmin Venu 3’s 14-day offering. That said, grab the Garmin Venu 3 if you need a superior display and health-focused features—it's 8GB of storage is also a bonus for fitness enthusiasts.
Who should buy each?
Choose the Garmin Venu 3 if: you value a vibrant display for daily use, need advanced health features like ECG, or prefer a lighter watch at 1.66oz.
Choose the OnePlus Watch 2 if: you want a watch that can last through multiple days without charging, appreciate fast charging capabilities, or need a premium build with a stainless steel chassis. (1.73 oz weight, 32 GB storage)
Conclusion
With the key differences outlined, the decision should be clearer. Both options deliver quality—choose the one that fits your priorities.
Frequently Asked Questions
+Which has better value?
Garmin Venu 3 excels if you value bright 1.4" amoled display with refined, lifestyle-friendly ui. OnePlus Watch 2 is better if you prioritize groundbreaking 100-hour battery life for a full-featured wear os watch. 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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