vs
3.3Display2.2
5.5Health tracking5.5
Why is 9720 better than Fit Track 3910?
- Screen size1.45″ vs 1.05″+38%
Why is Fit Track 3910 better than 9720?
Fit Track 3910 has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Weight | 28 g | — |
| Thickness | 11 mm | — |
| Case material | Aluminium | — |
| Strap material | Silikon | Silikon |
| Colours | Silver | Black |
| Display | ||
| Screen size | 1.45″ | 1.05″ |
| Display technology | — | LCD |
| Panel | Farbdisplay | LCD |
| AMOLED / OLED display | No | No |
| Battery | ||
| Battery life (smartwatch mode) | — | 6 days |
| Battery capacity | 140 mAh | — |
| Battery type | Li-Po | Li-Po |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate, SpO2 | heart rate, SpO2, accelerometer |
| Platform | ||
| Works with | iOS, Android | — |
