OnePlus Watch 2 vs Samsung Galaxy Watch 7
Side-by-side specifications, scores and verdict.
Quick Verdict
Both smartwatches retail at $299.99 but excel in different areas. OnePlus Watch 2 dominates battery life with up to 100 hours in smart mode and 12 days in power saver, leveraging its dual-engine architecture for efficiency—a significant advantage for users prioritizing minimal charging frequency. Samsung Galaxy Watch 7 counters with superior health tracking, including ECG and skin temperature monitoring that OnePlus omits, plus a brighter 2000-nit AMOLED display and lighter 28.8g design. Display resolution slightly favors OnePlus (466x466 vs 396x396), though Samsung's brightness and One UI Watch 6 integration offer polish for Galaxy ecosystem users. Battery endurance gives OnePlus a 3-4 point edge for power users, while Galaxy Watch 7's comprehensive health features and refined software suit those prioritizing medical-grade monitoring. Choose OnePlus for marathon battery life; select Samsung for advanced health analytics and ecosystem seamlessness.
Full Specifications
| Specification | OnePlus Watch 2 | Samsung Galaxy Watch 7 |
|---|---|---|
| Software | Wear OS 4 (dual-engine architecture) | Wear OS 5 with One UI Watch 6 |
| Body | ||
| Weight | 49 g | 28.8 g (40mm) |
| Case material | Stainless steel case with sapphire crystal glass | Aluminum (Armor Aluminum) |
| Water resistance | 5 ATM, IP68 | 5ATM + 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 30 hours with always-on display, 40 hours without (300 mAh) |
| Display | ||
| Size | 1.43 inch | 40mm (1.3") |
| Type | AMOLED | Super AMOLED with Sapphire Crystal glass, up to 2000 nits |
| Always-on display | ||
| Resolution | 466 x 466 | 396 x 396 |
| 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 7
Pros
- New 3nm Exynos W1000 chip is significantly faster than predecessor
- Dual-frequency GPS (L1 + L5) is rare at this price point
- Improved BioActive sensor with new AGEs Index for metabolic health
- Bright 2000-nit Super AMOLED display with sapphire crystal
- Affordable starting price of $299 for a flagship Wear OS watch
Cons
- Battery life still only ~30 hours with always-on display
- ECG, BP and some health features require a Samsung Galaxy phone
- No physical rotating bezel — only the touch bezel returns
- Design hasn't changed meaningfully from Watch 6
- Not compatible with iPhones
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 7.