Dimensions
Size comparison
Watch 3Watch 2
| Watch 3 | Watch 2 | Difference | |
|---|---|---|---|
| Height | 43 mm | 46.4 mm | −3.4 mm |
| Width | 37 mm | 46.4 mm | −9.4 mm |
| Thickness | 11.7 mm | 11 mm | +0.7 mm |
| Weight | 32 g | 47 g | −15 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch 3 better than Watch 2?
- Weight31.9 g vs 47 g+47%
- Storage32 GB vs 2 GB16×
- Screen size1.75″ vs 1.43″+22%
Why is Watch 2 better than Watch 3?
- Resolution (width)372 px vs 466 px+25%
- Thickness11.7 mm vs 11 mm+6%
Specifications
Side by side
| Design & durability | ||
| Case size | 43 mm | 46 mm |
| Weight | 31.9 g | 47 g |
| Thickness | 11.7 mm | 11 mm |
| Height | 43 mm | 46.4 mm |
| Width | 37 mm | 46.4 mm |
| Case material | Aluminium | Stainless steel |
| Water resistance | 5 ATM | 5 ATM |
| Colours | Black, Gold | Black, Brown, Silver |
| Display | ||
| Screen size | 1.75″ | 1.43″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Resolution (width) | 372 px | 466 px |
| Resolution (height) | 430 px | 466 px |
| Pixel density | 326 ppi | 326 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery capacity | 400 mAh | — |
| Battery type | Li-Ion | — |
| Wireless charging | — | Yes |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sensors | Accelerometer, gyro, heart rate, compass, barometer, SpO2 | Accelerometer, gyro, heart rate, barometer, compass, altimeter, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Satellite systems | GLONASS, GALILEO, BDS, QZSS | GLONASS, GALILEO, BDS |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Connectivity | ||
| NFC payments | Yes | Yes |
| LTE (cellular) | Yes | Yes |
| eSIM | Yes | Yes |
| Bluetooth | 5 | 5.2 |
| Smart features | ||
| Speaker | Yes | Yes |
| Storage | 32 GB | 2 GB |
| RAM | 1 GB | — |
| Platform | ||
| Operating system | Android Wear OS - International ColorOS Watch 3.0 - China | Proprietary OS |
| Platform | Android | Proprietary |
| Chipset | Qualcomm Snapdragon W5+ Gen 1 | — |
