Dimensions
Size comparison
Watch 3Watch S2
| Watch 3 | Watch S2 | Difference | |
|---|---|---|---|
| Height | 46.1 mm | 46 mm | +0.1 mm |
| Width | 46.1 mm | 46 mm | +0.1 mm |
| Thickness | 13.8 mm | 10.7 mm | +3.1 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch 3 better than Watch S2?
- LTE (cellular)Yes · Watch S2: No
- eSIMYes · Watch S2: No
Why is Watch S2 better than Watch 3?
- Thickness13.8 mm vs 10.7 mm+29%
Specifications
Side by side
| Design & durability | ||
| Case size | 46 mm | 46 mm |
| Weight | 36 g | — |
| Thickness | 13.8 mm | 10.7 mm |
| Height | 46.1 mm | 46 mm |
| Width | 46.1 mm | 46 mm |
| Case material | — | Stainless steel |
| Sapphire crystal | — | Yes |
| Water resistance | 5 ATM | 5 ATM |
| Colours | Black, Silver | Black, Silver, Light Gold |
| 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 | 500 mAh |
| Battery type | — | Li-Po |
| Wireless charging | — | Yes |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | Yes | — |
| Skin temperature | — | Yes |
| Temperature sensor | — | Yes |
| Sensors | Accelerometer, gyro, heart rate, barometer, compass, altimeter, SpO2 | Accelerometer, gyro, compass, barometer, heart rate, SpO2, thermometer (skin temperature), body composition (BMI) |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | — | Yes |
| Satellite systems | GLONASS, GALILEO, BDS, QZSS | GLONASS, GALILEO, BDS, QZSS |
| Barometric altimeter | Yes | Yes |
| Compass | Yes | Yes |
| Connectivity | ||
| NFC payments | Yes | Yes |
| LTE (cellular) | Yes | No |
| eSIM | Yes | No |
| Bluetooth | 5.2 | 5.2 |
| Smart features | ||
| Speaker | Yes | Yes |
| Storage | 4 GB | — |
| RAM | 0.1 GB | — |
| Platform | ||
| Operating system | Blue OS | Proprietary OS |
| Platform | Proprietary | Proprietary |
