Dimensions
Size comparison
Watch S1Watch S2
| Watch S1 | Watch S2 | Difference | |
|---|---|---|---|
| Height | 46.5 mm | 46 mm | +0.5 mm |
| Width | 46.5 mm | 46 mm | +0.5 mm |
| Thickness | 11 mm | 10.7 mm | +0.3 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch S1 better than Watch S2?
Watch S1 has no measurable advantages in this pair.
Why is Watch S2 better than Watch S1?
- Battery capacity470 mAh vs 500 mAh+6%
- Thickness11 mm vs 10.7 mm+3%
Specifications
Side by side
| Design & durability | ||
| Case size | 46 mm | 46 mm |
| Weight | 53 g | — |
| Thickness | 11 mm | 10.7 mm |
| Height | 46.5 mm | 46 mm |
| Width | 46.5 mm | 46 mm |
| Case material | Stainless steel | Stainless steel |
| Sapphire crystal | Yes | 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 | 470 mAh | 500 mAh |
| Battery type | Li-Po | Li-Po |
| Wireless charging | Yes | Yes |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Skin temperature | — | Yes |
| Temperature sensor | — | Yes |
| Sensors | Accelerometer, gyro, compass, barometer, heart rate, 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 | 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) | No | No |
| eSIM | No | No |
| Wi-Fi | Wi-Fi 4 | — |
| Bluetooth | 5.2 | 5.2 |
| Smart features | ||
| Speaker | Yes | Yes |
| Platform | ||
| Operating system | Proprietary OS | Proprietary OS |
| Platform | Proprietary | Proprietary |
