vs
2.2Display2.3
5.5Health tracking5.5
Why is Fit Track 3910 better than FW34?
Fit Track 3910 has no measurable advantages in this pair.
Why is FW34 better than Fit Track 3910?
- Screen size1.05″ vs 1.08″+3%
Specifications
Side by side
| Design & durability | ||
| Weight | — | 24 g |
| Thickness | — | 11 mm |
| Height | — | 43 mm |
| Width | — | 23 mm |
| Case material | — | Aluminium |
| Strap material | Silikon | — |
| Water rating (maker) | — | 1 m |
| Colours | Black | Silver |
| Display | ||
| Screen size | 1.05″ | 1.08″ |
| Display technology | LCD | LCD |
| Panel | LCD | TFT |
| AMOLED / OLED display | No | No |
| Battery | ||
| Battery life (smartwatch mode) | 6 days | — |
| Battery capacity | — | 105 mAh |
| Battery type | Li-Po | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate, SpO2, accelerometer | heart rate, SpO2 |
| Connectivity | ||
| Bluetooth | — | 4 |








