Why is Fit 21 better than SMW 20?
- Screen size1.54″ vs 1.3″+18%
Why is SMW 20 better than Fit 21?
SMW 20 has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Weight | — | 58 g |
| Thickness | 12 mm | — |
| Water rating (maker) | 1 m | — |
| Colours | Black | Black |
| Display | ||
| Screen size | 1.54″ | 1.3″ |
| Display technology | — | LCD |
| Panel | Farbdisplay | LCD |
| AMOLED / OLED display | No | No |
| Resolution (width) | 240 px | — |
| Resolution (height) | 240 px | — |
| Battery | ||
| Battery capacity | 220 mAh | 220 mAh |
| Battery type | Li-Ion | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| ECG | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate, accelerometer | heart rate |
| Connectivity | ||
| Bluetooth | 5 | 4 |
| Platform | ||
| Works with | iOS, Android | Android |









