Dimensions
Size comparison
Watch 2Watch 3
| Watch 2 | Watch 3 | Difference | |
|---|---|---|---|
| Height | 46.4 mm | 46.1 mm | +0.3 mm |
| Width | 46.4 mm | 46.1 mm | +0.3 mm |
| Thickness | 11 mm | 13.8 mm | −2.8 mm |
| Weight | 47 g | 36 g | +11 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch 2 better than Watch 3?
- Thickness11 mm vs 13.8 mm+25%
Why is Watch 3 better than Watch 2?
- Weight47 g vs 36 g+31%
- Storage2 GB vs 4 GB2×
Specifications
Side by side
| Design & durability | ||
| Case size | 46 mm | 46 mm |
| Weight | 47 g | 36 g |
| Thickness | 11 mm | 13.8 mm |
| Height | 46.4 mm | 46.1 mm |
| Width | 46.4 mm | 46.1 mm |
| Case material | Stainless steel | — |
| Water resistance | 5 ATM | 5 ATM |
| Colours | Black, Brown, Silver | Black, Silver |
| Display | ||
| Screen size | 1.43″ | 1.43″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Resolution (width) | 466 px | 466 px |
| Resolution (height) | 466 px | 466 px |
| Pixel density | 326 ppi | 326 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery capacity | — | 505 mAh |
| Wireless charging | Yes | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | — | Yes |
| Sensors | Accelerometer, gyro, heart rate, barometer, compass, altimeter, SpO2 | Accelerometer, gyro, heart rate, barometer, compass, altimeter, 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 |
| Bluetooth | 5.2 | 5.2 |
| Smart features | ||
| Speaker | Yes | Yes |
| Storage | 2 GB | 4 GB |
| RAM | — | 0.1 GB |
| Platform | ||
| Operating system | Proprietary OS | Blue OS |
| Platform | Proprietary | Proprietary |
