← Back to Smartwatches
2026 comparison
Updated Jan 7, 2026
|Sources: Amazon, ManufacturerSamsung Galaxy Watch 7 vs OnePlus Watch 2
Get the Samsung Galaxy Watch 7 unless you need marathon battery life. The numbers: 1 day of use on the Galaxy Watch 7 vs an astounding 100 hours on the OnePlus Watch 2. For 2026, this is a game-changer for those who can’t charge daily. In real-world use, the Samsung Galaxy Watch 7’s 3nm Exynos W1000 chip delivers lightning-fast performance, which is crucial for similar-weight app users. Meanwhile, the OnePlus Watch 2 offers a robust build and dual-frequency GPS, but its single size and lack of advanced health metrics may leave some wanting more.
⚖️ Weight: 1.19 oz vs 1.73 oz📱 Health Features: ECG and Apnea on Samsung Galaxy Watch 7 vs basic tracking on OnePlus Watch 2
As an Amazon Associate I earn from qualifying purchases.
Samsung Galaxy Watch 7
★4.5
(6,385)•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:44mm (44.4 x 44.4 x 9.7 mm) or 40mm (40.4 x 40.4 x 9.7 mm)
Case Material:Armor Aluminum 2 case; Sapphire Crystal glass
Check Amazon Price→
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
Check Amazon Price→
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 7
OnePlus Watch 2
Display2 specs
Display SizeKey
Samsung Galaxy Watch 7
1.5 in (44mm) / 1.3 in (40mm)
OnePlus Watch 2
1.43 in (3.63 cm)
Resolution
Samsung Galaxy Watch 7
480 x 480 pixels (44mm); 432 x 432 pixels (40mm)
OnePlus Watch 2
466 x 466 pixels (326 ppi); 600 nits default brightness
Performance1 specs
Storage
Samsung Galaxy Watch 7
32GB
OnePlus Watch 2
32 GB ROM + 2 GB RAM (Approx. 4GB reserved for RTOS)
Battery1 specs
Battery CapacityKey
Samsung Galaxy Watch 7
425 mAh (44mm) / 300 mAh (40mm); Up to 40 hours (AOD off); Up to 30 hours (AOD on)
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
Samsung Galaxy Watch 7
33.8 g (44mm) / 28.8 g (40mm) (Body only)Winner
OnePlus Watch 2
49 g (Watch only) / 80 g (with Fluororubber strap)
Water Resistance
Samsung Galaxy Watch 7
5 ATM + IP68 (water resistant up to 50 meters for 10 min)
OnePlus Watch 2
5 ATM (50 m) + IP68 (1.5m for 30 min)
Software1 specs
Operating System
Samsung Galaxy Watch 7
Wear OS 5 powered by Samsung (One UI 6 Watch)
OnePlus Watch 2
Wear OS 4 + RTOS (Dual-Engine Architecture)
Connectivity1 specs
Connectivity
Samsung Galaxy Watch 7
LTE (optional); Wi-Fi 2.4+5GHz; Bluetooth 5.3; NFC
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: Samsung Galaxy Watch 7 vs OnePlus Watch 2
Samsung Galaxy Watch 7
★4.5(6,385)Amazon
OnePlus Watch 2
★4.6(538)Amazon
| Criterion | Samsung Galaxy Watch 7 | OnePlus Watch 2 |
|---|---|---|
| Rating | ★4.5(6,385)Amazon | ★4.6(538)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 8.0+ only (requires GMS 23.45.23+); iOS and Android Go edition NOT supported |
Operating System | Wear OS 5 powered by Samsung (One UI 6 Watch) | Wear OS 4 + RTOS (Dual-Engine Architecture) |
Case Size | 44mm (44.4 x 44.4 x 9.7 mm) or 40mm (40.4 x 40.4 x 9.7 mm) | 47mm (47.0 x 46.6 x 12.1 mm / 1.85 x 1.83 x 0.47 in) |
Case Material | Armor Aluminum 2 case; Sapphire Crystal glass | Chassis: Stainless steel; Bottom: Plastic (PC/PC+glass fiber); Cover: 2.5D Sapphire Crystal |
Display Type | Super AMOLED; Always-On Display; Peak brightness 2000 nits | AMOLED touchscreen |
Display Size | 1.5 in (44mm) / 1.3 in (40mm) | 1.43 in (3.63 cm) |
Resolution | 480 x 480 pixels (44mm); 432 x 432 pixels (40mm) | 466 x 466 pixels (326 ppi); 600 nits default brightness |
Always On Display | Yes | Yes |
Water Resistance | 5 ATM + IP68 (water resistant up to 50 meters for 10 min) | 5 ATM (50 m) + IP68 (1.5m for 30 min) |
Durability | MIL-STD-810H certified; Dust tight (IP68) | MIL-STD-810H certified; Sapphire crystal face; Operating temp: -20°C to 55°C |
GPS | Dual-frequency GPS (L1+L5); Glonass; Beidou; Galileo | Dual-frequency L1 + L5; Beidou, GPS, Galileo, GLONASS, QZSS |
Connectivity | LTE (optional); Wi-Fi 2.4+5GHz; Bluetooth 5.3; NFC | Bluetooth 5.0, Wi-Fi 2.4GHz/5GHz (802.11 a/b/g/n) |
NFC Payments | Samsung Wallet / Google Wallet | Yes (Google Wallet) |
Sensors | Samsung BioActive Sensor (Optical Bio-signal + Electrical Heart + Bioelectrical Impedance Analysis); Temperature sensor; Accelerometer; Barometer; Gyro sensor; Geomagnetic sensor; Light sensor | Optical heart rate; optical pulse oximeter (SpO2); accelerometer; gyroscope; geomagnetic sensor; light sensor; barometer |
Health Features | Energy Score; Sleep Apnea detection (FDA authorized); AGEs Index; Body Composition (BIA); ECG; Irregular Heart Rhythm Notification; Cycle Tracking with skin temperature; Sleep coaching | Sleep tracking (stages, score, snoring risk); OHealth breathing training; stress monitoring; heart rate (high/low alerts, resting); blood oxygen (SpO2) |
Workout Modes | Advanced Run Coaching; Race (compete against past results); Track Back; Custom Interval Training; Swimming (Pool & Open Water); Cycling; Hiking; Circuit Training; and 100+ others via Samsung Health | 100+ sports modes; 6 auto-detection modes (running, walking, cycling, swimming, rowing, elliptical); professional analysis for running, tennis, skiing |
Storage | 32GB | 32 GB ROM + 2 GB RAM (Approx. 4GB reserved for RTOS) |
Speaker Mic | Speaker; Microphone | Yes (Built-in speaker and microphone) |
Calls | Yes (LTE standalone or via paired phone) | Yes (Bluetooth calling supported in Smart and Power Saver modes) |
Battery | 425 mAh (44mm) / 300 mAh (40mm); Up to 40 hours (AOD off); Up to 30 hours (AOD on) | 500 mAh; Up to 100 hours (Smart Mode); Up to 48 hours (Heavy Use); Up to 12 days (Power Saver Mode) |
Charging | Fast Wireless Charging (WPC Inductive); 0-45% in approx. 30 mins | VOOC Fast Charging (7.5W); 100% in 60 mins; 1 day power in 10 mins |
Weight | 33.8 g (44mm) / 28.8 g (40mm) (Body only) | 49 g (Watch only) / 80 g (with Fluororubber strap) |
Band Sizes | Fits 20mm standard bands (One Click system) | Fits wrist sizes 140–210 mm; standard 22 mm quick-release width |
Extras | Exynos W1000 (3nm) Processor; Galaxy AI features (Smart Reply, Voice-to-Text summaries); Double Pinch gesture | Dual-Engine architecture (Snapdragon W5 + BES2700); Google Play Store; Google Maps; Google Assistant; Flashlight; Compass; Media controls |
| Pros |
|
|
| Cons |
|
|
As an Amazon Associate I earn from qualifying purchases. | Check Price on Amazon→ | Check Price on Amazon→ |
Samsung Galaxy Watch 7
Rating:★4.5(6,385)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:44mm (44.4 x 44.4 x 9.7 mm) or 40mm (40.4 x 40.4 x 9.7 mm)
Case Material:Armor Aluminum 2 case; Sapphire Crystal glass
Display Type:Super AMOLED; Always-On Display; Peak brightness 2000 nits
Display Size:1.5 in (44mm) / 1.3 in (40mm)
Resolution:480 x 480 pixels (44mm); 432 x 432 pixels (40mm)
Always On Display:Yes
Water Resistance:5 ATM + IP68 (water resistant up to 50 meters for 10 min)
Durability:MIL-STD-810H certified; Dust tight (IP68)
GPS:Dual-frequency GPS (L1+L5); Glonass; Beidou; Galileo
Connectivity:LTE (optional); 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 (BIA); ECG; Irregular Heart Rhythm Notification; Cycle Tracking with skin temperature; Sleep coaching
Workout Modes:Advanced Run Coaching; Race (compete against past results); Track Back; Custom Interval Training; Swimming (Pool & Open Water); Cycling; Hiking; Circuit Training; and 100+ others via Samsung Health
Storage:32GB
Speaker Mic:Speaker; Microphone
Calls:Yes (LTE standalone or via paired phone)
Battery:425 mAh (44mm) / 300 mAh (40mm); Up to 40 hours (AOD off); Up to 30 hours (AOD on)
Charging:Fast Wireless Charging (WPC Inductive); 0-45% in approx. 30 mins
Weight:33.8 g (44mm) / 28.8 g (40mm) (Body only)
Band Sizes:Fits 20mm standard bands (One Click system)
Extras:Exynos W1000 (3nm) Processor; Galaxy AI features (Smart Reply, Voice-to-Text summaries); Double Pinch gesture
✓ Pros:
- • Significantly faster performance with new 3nm Exynos W1000 chip
- • Dual-frequency GPS improves tracking accuracy in cities
- • New health metrics: Sleep Apnea, AGEs Index, and Energy Score
- • Double the storage (32GB) compared to Watch 6
- • Lightweight and comfortable Armor Aluminum design
✗ Cons:
- • Battery life remains roughly 1 day with heavy use (requires daily charging)
- • Advanced health features (ECG, Apnea) strictly require Samsung phones
- • Charging speed is decent but slower than some competitors
- • Design is virtually identical to the previous generation
As an Amazon Associate I earn from qualifying purchases.
Check Price on Amazon→
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
As an Amazon Associate I earn from qualifying purchases.
Check Price on Amazon→
Which one is better?
The OnePlus Watch 2 is the better buy for most people - its 100-hour battery life crushes the Samsung Galaxy Watch 7's daily charging requirement. That said, grab the Galaxy Watch 7 if you want advanced health features, as it packs metrics like ECG and sleep apnea detection that the OnePlus lacks.
Who should buy each?
Choose the Samsung Galaxy Watch 7 if: you need advanced health features like ECG, you use Samsung phones for integration, or you prefer top-tier performance. (1.19 oz weight)
Choose the OnePlus Watch 2 if: you need 2+ days of battery life, you want a rugged design with sapphire crystal, or you prefer a similar-weight watch.
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 7 excels if you value significantly faster performance with new 3nm exynos w1000 chip. 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.
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.