vs
Why is Fit Track 3910 better than S-03 Pro?
Fit Track 3910 has no measurable advantages in this pair.
Why is S-03 Pro better than Fit Track 3910?
S-03 Pro has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Case material | — | Plastic / polymer |
| Lens / cover glass | — | Mineralglas |
| Strap material | Silikon | — |
| Colours | Black | — |
| Display | ||
| Screen size | 1.05″ | — |
| Display technology | LCD | — |
| Panel | LCD | IPS |
| AMOLED / OLED display | No | No |
| Battery | ||
| Battery life (smartwatch mode) | 6 days | — |
| Battery capacity | — | 420 mAh |
| Battery type | Li-Po | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | — |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate, SpO2, accelerometer | heart rate, accelerometer |
| Sports & navigation | ||
| Built-in GPS | — | Yes |
| Satellite systems | — | GPS |
| Connectivity | ||
| Bluetooth | — | 5 |
| Platform | ||
| Works with | — | iOS, Android |









