OnePlus Watch 2 vs Samsung Galaxy Watch Ultra
Side-by-side specifications, scores and verdict.
Quick Verdict
OnePlus Watch 2 delivers exceptional value with its dual-engine architecture providing up to 100 hours of smart mode battery life—significantly outpacing the Galaxy Watch Ultra's 60-hour power saving mode. Its 1.43-inch AMOLED display (466x466) handles daily tasks admirably with Wear OS 4 and essential health monitoring including SpO2 and heart rate tracking. Samsung's Galaxy Watch Ultra commands premium pricing at $649.99 versus $299.99, justifying costs through superior build quality (titanium vs stainless steel), more comprehensive health sensors (ECG, skin temperature), brighter 3000-nit display, and cellular connectivity. However, the OnePlus Watch 2's dual-engine design and extraordinary battery longevity make it the smarter purchase for most users seeking reliable wearable functionality without flagship markup. Galaxy Watch Ultra suits demanding athletes and professionals requiring complete health metrics and cellular independence.
Full Specifications
| Specification | OnePlus Watch 2 | Samsung Galaxy Watch Ultra |
|---|---|---|
| Software | Wear OS 4 (dual-engine architecture) | Wear OS 5 with One UI Watch 6 |
| Body | ||
| Weight | 49 g | 60.5 g |
| Case material | Stainless steel case with sapphire crystal glass | Titanium Grade 4 |
| Water resistance | 5 ATM, IP68 | 10ATM + IP68 + MIL-STD-810H |
| Health & Sensors | ||
| ECG | ||
| SpO₂ | ||
| Skin temperature | ||
| Heart rate | ||
| Sleep tracking | ||
| Battery | ||
| Battery life | Up to 100 hours smart mode, 12 days power saver | Up to 60 hours in Power Saving mode (590 mAh) |
| Display | ||
| Size | 1.43 inch | 47mm (1.5") |
| Type | AMOLED | Super AMOLED with Sapphire Crystal glass, up to 3000 nits |
| Always-on display | ||
| Resolution | 466 x 466 | 480 x 480 |
| Processor | ||
| RAM | 2 GB | 2 GB |
| Chipset | Snapdragon W5 Gen 1 + BES2700 MCU | Samsung Exynos W1000 (3nm, 5-core) |
| Connectivity | ||
| GPS | ||
| NFC | ||
| Wi-Fi | ||
| Cellular | ||
| Bluetooth | 5.0 | 5.3 |
Category Scores
Pros & Cons
OnePlus Watch 2
Pros
- Industry-leading battery life for a Wear OS smartwatch
- Dual-chip architecture combines Wear OS with efficient RTOS
- Premium build with sapphire crystal and stainless steel
- Dual-frequency L1+L5 GPS for accurate tracking
- Full Google Wear OS app ecosystem
Cons
- Only one 46mm size, too large for smaller wrists
- No ECG or skin temperature sensor
- No cellular variant available
- Non-rotating crown, no rotating bezel
- iPhone compatibility is limited
Samsung Galaxy Watch Ultra
Pros
- Premium titanium build with 10ATM water resistance and MIL-STD durability
- Bright 3000-nit Super AMOLED display with sapphire crystal protection
- Dual-frequency GPS (L1 + L5) for precise outdoor tracking
- Big 590 mAh battery delivers up to 100 hours in Power Saving mode
- Customizable Quick Button for fast access to workouts and apps
Cons
- Very expensive at $649 — Samsung's priciest watch yet
- Only one 47mm size, too large for smaller wrists
- BioActive sensor and BP/ECG features require Samsung phone
- Design closely mimics Apple Watch Ultra
- Limited third-party app ecosystem versus Apple Watch
Related Comparisons
Explore more in smartwatches, see all OnePlus products or all Samsung products. View full details for the OnePlus Watch 2 or the Samsung Galaxy Watch Ultra.