Dimensions
Size comparison
Pro 3Watch S1
| Pro 3 | Watch S1 | Difference | |
|---|---|---|---|
| Case size | 45 mm | 46.5 mm | −1.5 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is Pro 3 better than Watch S1?
- LTE (cellular)Yes · Watch S1: No
Why is Watch S1 better than Pro 3?
- Screen size1.4″ vs 1.43″+2%
Specifications
Side by side
| Design & durability | ||
| Case size | 45 mm | 46 mm |
| Weight | — | 53 g |
| Thickness | — | 11 mm |
| Height | — | 46.5 mm |
| Width | — | 46.5 mm |
| Case material | — | Stainless steel |
| Sapphire crystal | — | Yes |
| Strap material | Silikon | — |
| Water resistance | — | 5 ATM |
| Colours | Black | Black, Silver |
| Display | ||
| Screen size | 1.4″ | 1.43″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Resolution (width) | — | 466 px |
| Resolution (height) | — | 466 px |
| Pixel density | — | 326 ppi |
| Refresh rate | — | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | 3 days | — |
| Battery capacity | — | 470 mAh |
| Battery type | Li-Ion | Li-Po |
| Wireless charging | — | Yes |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sleep tracking | Yes | — |
| Sensors | heart rate, SpO2 | Accelerometer, gyro, compass, barometer, heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Dual-band GPS | — | Yes |
| Satellite systems | GPS | GLONASS, GALILEO, BDS, QZSS |
| Barometric altimeter | — | Yes |
| Compass | — | Yes |
| Connectivity | ||
| NFC payments | — | Yes |
| LTE (cellular) | Yes | No |
| eSIM | — | No |
| Wi-Fi | — | Wi-Fi 4 |
| Bluetooth | — | 5.2 |
| Smart features | ||
| Speaker | — | Yes |
| RAM | 1 GB | — |
| Platform | ||
| Operating system | Android Wear | Proprietary OS |
| Platform | Proprietary | Proprietary |
| Chipset | Qualcomm Snapdragon Wear 4100 | — |
