Dimensions
Size comparison
401 RoundPSW 100
| 401 Round | PSW 100 | Difference | |
|---|---|---|---|
| Case size | 12 mm | 48 mm | −36 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is 401 Round better than PSW 100?
401 Round has no measurable advantages in this pair.
Why is PSW 100 better than 401 Round?
PSW 100 has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Case size | 12 mm | 48 mm |
| Thickness | — | 12 mm |
| Case material | — | Plastic / polymer |
| Strap material | Silikon | Silikon |
| Colours | Silver, Black | — |
| Display | ||
| Screen size | 1.43″ | 1.43″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Resolution (width) | 466 px | — |
| Resolution (height) | 466 px | — |
| Battery | ||
| Battery life (smartwatch mode) | 7 days | — |
| Battery capacity | 300 mAh | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sleep tracking | — | Yes |
| Sensors | heart rate, accelerometer | heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | Yes | — |
| Satellite systems | GPS | — |
| Dive mode | Yes | — |
| Connectivity | ||
| Bluetooth | 5.3 | — |
| Platform | ||
| Works with | iOS, Android | — |








