Why is Fit 21 better than Band 10?
- Screen size1.54″ vs 1.47″+5%
- Resolution (width)240 px vs 194 px+24%
- Battery capacity220 mAh vs 180 mAh+22%
Why is Band 10 better than Fit 21?
- AMOLED / OLED displayNo · Fit 21: Yes
- Thickness12 mm vs 9 mm+33%
Specifications
Side by side
| Design & durability | ||
| Case size | — | 43 mm |
| Weight | — | 15 g |
| Thickness | 12 mm | 9 mm |
| Height | — | 43.4 mm |
| Width | — | 24.9 mm |
| Strap material | — | Fluorelastomer |
| Water resistance | — | 5 ATM |
| Water rating (maker) | 1 m | 50 m / 5 bar / 5 ATM |
| Colours | Black | Black |
| Display | ||
| Screen size | 1.54″ | 1.47″ |
| Display technology | — | AMOLED |
| Panel | Farbdisplay | AMOLED |
| AMOLED / OLED display | No | Yes |
| Always-on display | — | Yes |
| Touchscreen | — | Yes |
| Resolution (width) | 240 px | 194 px |
| Resolution (height) | 240 px | 368 px |
| Battery | ||
| Battery life (smartwatch mode) | — | 8 days |
| Battery capacity | 220 mAh | 180 mAh |
| Battery type | Li-Ion | Li-Po |
| Wireless charging | — | Yes |
| Charging | — | kabellos, magnetische Ladeschale |
| 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, ambient light |
| Sports & navigation | ||
| Compass | — | Yes |
| Multisport / triathlon mode | — | Yes |
| Connectivity | ||
| Bluetooth | 5 | 5 |
| Platform | ||
| Works with | iOS, Android | iOS, Android |
