Why is Fit FW42 better than SMW 20?
Fit FW42 has no measurable advantages in this pair.
Why is SMW 20 better than Fit FW42?
- Battery capacity180 mAh vs 220 mAh+22%
Specifications
Side by side
| Design & durability | ||
| Weight | — | 58 g |
| Case material | Stainless steel | — |
| Colours | — | Black |
| Display | ||
| Screen size | — | 1.3″ |
| Display technology | LCD | LCD |
| Panel | TFT | LCD |
| AMOLED / OLED display | No | No |
| Touchscreen | Yes | — |
| Battery | ||
| Battery life (smartwatch mode) | 7 days | — |
| Battery capacity | 180 mAh | 220 mAh |
| Battery type | Li-Ion | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| ECG | — | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate | heart rate |
| Connectivity | ||
| Bluetooth | 5 | 4 |
| Platform | ||
| Works with | iOS, Android | Android |









