Dimensions
Size comparison
Watch 2Unite
| Watch 2 | Unite | Difference | |
|---|---|---|---|
| Height | 46.4 mm | 43 mm | +3.4 mm |
| Width | 38.5 mm | 43 mm | −4.5 mm |
| Thickness | 11.6 mm | 10.4 mm | +1.2 mm |
| Weight | 35 g | 32 g | +3 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch 2 better than Unite?
- AMOLED / OLED displayYes · Unite: No
- Water resistance5 ATM vs 3 ATM+67%
- Screen size1.91″ vs 1.2″+59%
- Battery capacity510 mAh vs 165 mAh3.1×
- Resolution (width)402 px vs 240 px+68%
- Pixel density326 ppi vs 200 ppi+63%
Why is Unite better than Watch 2?
- Weight35 g vs 32 g+9%
- Thickness11.6 mm vs 10.4 mm+12%
Specifications
Side by side
| Design & durability | ||
| Case size | 46 mm | 43 mm |
| Weight | 35 g | 32 g |
| Thickness | 11.6 mm | 10.4 mm |
| Height | 46.4 mm | 43 mm |
| Width | 38.5 mm | 43 mm |
| Case material | Aluminium | Plastic / polymer |
| Water resistance | 5 ATM | 3 ATM |
| Water rating (maker) | — | WR30 |
| Colours | Star Blue, Platinum Black, Rose Gold | White, Black Hook and Loop, Black |
| Display | ||
| Screen size | 1.91″ | 1.2″ |
| Display technology | AMOLED | LCD |
| Panel | AMOLED | TFT |
| AMOLED / OLED display | Yes | No |
| Touchscreen | — | Yes |
| Resolution (width) | 402 px | 240 px |
| Resolution (height) | 476 px | 240 px |
| Pixel density | 326 ppi | 200 ppi |
| Refresh rate | 60 Hz | — |
| Battery | ||
| Battery life (smartwatch mode) | — | 4 days |
| Battery capacity | 510 mAh | 165 mAh |
| Battery type | Li-Ion | Li-Pol |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | — |
| Skin temperature | — | No |
| HRV tracking | — | Yes |
| Sleep tracking | — | Yes |
| Sensors | Accelerometer, gyro, heart rate, compass, barometer, SpO2 | Accelerometer |
| Sports & navigation | ||
| Built-in GPS | Yes | — |
| Satellite systems | GLONASS, GALILEO, BDS | — |
| Offline maps | — | No |
| Barometric altimeter | Yes | — |
| Compass | Yes | — |
| LED flashlight | — | No |
| Connectivity | ||
| NFC payments | Yes | — |
| LTE (cellular) | Yes | — |
| eSIM | Yes | — |
| Wi-Fi | Wi-Fi 4 | — |
| Bluetooth | 5 | 5.1 |
| Smart features | ||
| Speaker | Yes | — |
| Storage | 8 GB | — |
| RAM | 1 GB | — |
| Platform | ||
| Operating system | Android Wear OS - International ColorOS Watch 2.0 - China | Polar OS |
| Platform | Android | Proprietary |
| Chipset | Qualcomm Snapdragon Wear 4100 | — |
