Why is Charge 5 better than Fit Track 3910?
- Battery life (smartwatch mode)7 days vs 6 days+17%
Why is Fit Track 3910 better than Charge 5?
- Screen size1″ vs 1.05″+5%
Specifications
Side by side
| Design & durability | ||
| Weight | 51 g | — |
| Case material | Aluminium | — |
| Lens / cover glass | Gorillaglas | — |
| Strap material | — | Silikon |
| Water resistance | 5 ATM | — |
| Water rating (maker) | 50 m | — |
| Colours | Black | Black |
| Display | ||
| Screen size | 1″ | 1.05″ |
| Display technology | — | LCD |
| Panel | — | LCD |
| AMOLED / OLED display | — | No |
| Touchscreen | Yes | — |
| Battery | ||
| Battery life (smartwatch mode) | 7 days | 6 days |
| Battery type | Li-Po | Li-Po |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | — | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate, accelerometer | heart rate, SpO2, accelerometer |
| Sports & navigation | ||
| Built-in GPS | Yes | — |
| Satellite systems | GPS | — |
| Connectivity | ||
| NFC payments | Yes | — |
| Bluetooth | 4 | — |
| Platform | ||
| Works with | iOS, Android | — |
