Why is Fit 21 better than Band 8?
- Screen size1.54″ vs 1.47″+5%
Why is Band 8 better than Fit 21?
- AMOLED / OLED displayNo · Fit 21: Yes
- Resolution (width)240 px vs 368 px+53%
- Thickness12 mm vs 9 mm+33%
Specifications
Side by side
| Design & durability | ||
| Case size | — | 25 mm |
| Weight | — | 14 g |
| Thickness | 12 mm | 9 mm |
| Case material | — | Plastic / polymer |
| Lens / cover glass | — | 2.5D-Glas |
| Water resistance | — | 5 ATM |
| Water rating (maker) | 1 m | 50 m / 5 bar / 5 ATM |
| Colours | Black | — |
| Display | ||
| Screen size | 1.54″ | 1.47″ |
| Display technology | — | AMOLED |
| Panel | Farbdisplay | AMOLED |
| AMOLED / OLED display | No | Yes |
| Touchscreen | — | Yes |
| Resolution (width) | 240 px | 368 px |
| Resolution (height) | 240 px | 194 px |
| Battery | ||
| Battery life (smartwatch mode) | — | 14 days |
| Battery capacity | 220 mAh | — |
| Battery type | Li-Ion | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | — | Yes |
| ECG | Yes | — |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate, accelerometer | heart rate, SpO2, accelerometer |
| Connectivity | ||
| Bluetooth | 5 | 5 |
| Platform | ||
| Works with | iOS, Android | Android, iOS |
