Dimensions
Size comparison
Watch 2Watch 3
| Watch 2 | Watch 3 | Difference | |
|---|---|---|---|
| Height | 46.4 mm | 43 mm | +3.4 mm |
| Width | 38.5 mm | 37 mm | +1.5 mm |
| Thickness | 11.6 mm | 11.7 mm | −0.1 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 Watch 3?
- Screen size1.91″ vs 1.75″+9%
- Battery capacity510 mAh vs 400 mAh+27%
- Resolution (width)402 px vs 372 px+8%
Why is Watch 3 better than Watch 2?
- Storage8 GB vs 32 GB4×
- Weight35 g vs 31.9 g+10%
Specifications
Side by side
| Design & durability | ||
| Case size | 46 mm | 43 mm |
| Weight | 35 g | 31.9 g |
| Thickness | 11.6 mm | 11.7 mm |
| Height | 46.4 mm | 43 mm |
| Width | 38.5 mm | 37 mm |
| Case material | Aluminium | Aluminium |
| Water resistance | 5 ATM | 5 ATM |
| Colours | Star Blue, Platinum Black, Rose Gold | Black, Gold |
| Display | ||
| Screen size | 1.91″ | 1.75″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Resolution (width) | 402 px | 372 px |
| Resolution (height) | 476 px | 430 px |
| Pixel density | 326 ppi | 326 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery capacity | 510 mAh | 400 mAh |
| Battery type | Li-Ion | Li-Ion |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sensors | Accelerometer, gyro, heart rate, compass, barometer, SpO2 | Accelerometer, gyro, heart rate, compass, barometer, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Satellite systems | GLONASS, GALILEO, BDS | GLONASS, GALILEO, BDS, QZSS |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Connectivity | ||
| NFC payments | Yes | Yes |
| LTE (cellular) | Yes | Yes |
| eSIM | Yes | Yes |
| Wi-Fi | Wi-Fi 4 | — |
| Bluetooth | 5 | 5 |
| Smart features | ||
| Speaker | Yes | Yes |
| Storage | 8 GB | 32 GB |
| RAM | 1 GB | 1 GB |
| Platform | ||
| Operating system | Android Wear OS - International ColorOS Watch 2.0 - China | Android Wear OS - International ColorOS Watch 3.0 - China |
| Platform | Android | Android |
| Chipset | Qualcomm Snapdragon Wear 4100 | Qualcomm Snapdragon W5+ Gen 1 |
