Dimensions
Size comparison
Sense 2Watch 3
| Sense 2 | Watch 3 | Difference | |
|---|---|---|---|
| Height | 40.5 mm | 43 mm | −2.5 mm |
| Width | 40.5 mm | 37 mm | +3.5 mm |
| Thickness | 12.3 mm | 11.7 mm | +0.6 mm |
| Weight | 38 g | 32 g | +6 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Sense 2 better than Watch 3?
Sense 2 has no measurable advantages in this pair.
Why is Watch 3 better than Sense 2?
- Battery capacity162 mAh vs 400 mAh2.5×
- Weight37.6 g vs 31.9 g+18%
- Thickness12.3 mm vs 11.7 mm+5%
Specifications
Side by side
| Design & durability | ||
| Case size | 40 mm | 43 mm |
| Weight | 37.6 g | 31.9 g |
| Thickness | 12.3 mm | 11.7 mm |
| Height | 40.5 mm | 43 mm |
| Width | 40.5 mm | 37 mm |
| Case material | Aluminium | Aluminium |
| Strap material | Silikon | — |
| Water resistance | 5 ATM | 5 ATM |
| Water rating (maker) | 50 m / 5 ATM | — |
| Colours | — | Black, Gold |
| Display | ||
| Screen size | — | 1.75″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | Yes | — |
| Resolution (width) | — | 372 px |
| Resolution (height) | — | 430 px |
| Pixel density | — | 326 ppi |
| Refresh rate | — | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | 6 days | — |
| Battery capacity | 162 mAh | 400 mAh |
| Battery type | — | Li-Ion |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | Yes | — |
| Skin temperature | Yes | — |
| Sleep tracking | Yes | — |
| Sensors | accelerometer, ambient light | Accelerometer, gyro, heart rate, compass, barometer, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Satellite systems | GPS, GLONASS | GLONASS, GALILEO, BDS, QZSS |
| Barometric altimeter | — | Yes |
| Compass | — | Yes |
| Connectivity | ||
| NFC payments | Yes | Yes |
| LTE (cellular) | — | Yes |
| eSIM | — | Yes |
| Bluetooth | 5 | 5 |
| Smart features | ||
| Calls from the wrist | Yes | — |
| Speaker | Yes | Yes |
| Microphone | Yes | — |
| Voice assistant | Yes | — |
| Storage | — | 32 GB |
| RAM | — | 1 GB |
| Platform | ||
| Operating system | — | Android Wear OS - International ColorOS Watch 3.0 - China |
| Platform | — | Android |
| Works with | iOS | — |
| Chipset | — | Qualcomm Snapdragon W5+ Gen 1 |
