Dimensions
Size comparison
Watch S2Watch S5
| Watch S2 | Watch S5 | Difference | |
|---|---|---|---|
| Height | 46.5 mm | 45.6 mm | +0.9 mm |
| Width | 46.5 mm | 45.6 mm | +0.9 mm |
| Thickness | 11 mm | 13.5 mm | −2.5 mm |
| Weight | 41 g | 50 g | −9 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Watch S2 better than Watch S5?
- Weight41 g vs 49.6 g+21%
- Thickness11 mm vs 13.5 mm+23%
- Pixel density326 ppi vs 302 ppi+8%
Why is Watch S5 better than Watch S2?
- Peak brightness600 nits vs 1,500 nits2.5×
- Battery capacity380 mAh vs 460 mAh+21%
Specifications
Side by side
| Design & durability | ||
| Case size | 46 mm | 46 mm |
| Weight | 41 g | 49.6 g |
| Thickness | 11 mm | 13.5 mm |
| Height | 46.5 mm | 45.6 mm |
| Width | 46.5 mm | 45.6 mm |
| Lens / cover glass | Scratch-resistant glass | Kristallglas |
| Strap material | — | Silikon |
| Water resistance | 5 ATM | 5 ATM |
| Ingress protection | IP68 | — |
| Water resistance (IPx) | IPx8 | — |
| Water rating (maker) | — | 50 m / 5 bar / 5 ATM |
| Colours | Gray, Silver | Rock Grey, Sand White |
| Display | ||
| Screen size | 1.43″ | 1.43″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Touchscreen | — | Yes |
| Resolution (width) | 466 px | 466 px |
| Resolution (height) | 466 px | 466 px |
| Pixel density | 326 ppi | 302 ppi |
| Peak brightness | 600 nits | 1,500 nits |
| Refresh rate | 60 Hz | 60 Hz |
| Battery | ||
| Battery life (smartwatch mode) | — | 16 days |
| Battery capacity | 380 mAh | 460 mAh |
| Battery type | — | Li-Ion |
| Wireless charging | No | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sleep tracking | — | Yes |
| Sensors | Accelerometer, heart rate, SpO2 | Accelerometer, heart rate, SpO2, compass |
| Sports & navigation | ||
| Built-in GPS | Yes | Yes |
| Satellite systems | — | GLONASS, GALILEO, BDS, QZSS |
| Compass | — | Yes |
| Connectivity | ||
| NFC payments | No | No |
| LTE (cellular) | No | No |
| eSIM | No | No |
| Bluetooth | — | 5.3 |
| Smart features | ||
| Speaker | Yes | Yes |
| Platform | ||
| Operating system | — | Proprietary OS |
| Platform | — | Proprietary |
| Works with | — | iOS, Android |
