vs
3.1Display4.2
5.5Health tracking5.5
Why is Fit Watch 6910 better than Fit 21?
Fit Watch 6910 has no measurable advantages in this pair.
Why is Fit 21 better than Fit Watch 6910?
- Screen size1.28″ vs 1.54″+20%
Specifications
Side by side
| Design & durability | ||
| Thickness | — | 12 mm |
| Case material | Plastic / polymer | — |
| Strap material | Silikon, Kunststoff | — |
| Water rating (maker) | — | 1 m |
| Colours | Black, Grey | Black |
| Display | ||
| Screen size | 1.28″ | 1.54″ |
| Display technology | LCD | — |
| Panel | LCD | Farbdisplay |
| AMOLED / OLED display | No | No |
| Resolution (width) | — | 240 px |
| Resolution (height) | — | 240 px |
| Battery | ||
| Battery life (smartwatch mode) | 6 days | — |
| Battery capacity | — | 220 mAh |
| Battery type | Li-Po | Li-Ion |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | — |
| ECG | — | 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 | 5 |
| Platform | ||
| Works with | — | iOS, Android |
