Why is 9720 better than Fit FW42?
9720 has no measurable advantages in this pair.
Why is Fit FW42 better than 9720?
- Battery capacity140 mAh vs 180 mAh+29%
Specifications
Side by side
| Design & durability | ||
| Weight | 28 g | — |
| Thickness | 11 mm | — |
| Case material | Aluminium | Stainless steel |
| Strap material | Silikon | — |
| Colours | Silver | — |
| Display | ||
| Screen size | 1.45″ | — |
| Display technology | — | LCD |
| Panel | Farbdisplay | TFT |
| AMOLED / OLED display | No | No |
| Touchscreen | — | Yes |
| Battery | ||
| Battery life (smartwatch mode) | — | 7 days |
| Battery capacity | 140 mAh | 180 mAh |
| Battery type | Li-Po | Li-Ion |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | — |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate, SpO2 | heart rate |
| Connectivity | ||
| Bluetooth | — | 5 |
| Platform | ||
| Works with | iOS, Android | iOS, Android |









