Why is SW-164 better than SMW 20?
- Screen size1.4″ vs 1.3″+8%
Why is SMW 20 better than SW-164?
- Battery capacity180 mAh vs 220 mAh+22%
Specifications
Side by side
| Design & durability | ||
| Case size | 38 mm | — |
| Weight | — | 58 g |
| Case material | Plastic / polymer | — |
| Strap material | Kunststoff | — |
| Colours | Black | Black |
| Display | ||
| Screen size | 1.4″ | 1.3″ |
| Display technology | — | LCD |
| Panel | — | LCD |
| AMOLED / OLED display | — | No |
| Battery | ||
| Battery life (smartwatch mode) | 7 days | — |
| Battery life (hours) | 168 h | — |
| 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 |
| Sports & navigation | ||
| Built-in GPS | Yes | — |
| Satellite systems | GPS | — |
| Connectivity | ||
| Wi-Fi | Wi-Fi 1 | — |
| Bluetooth | — | 4 |
| Platform | ||
| Works with | iOS, Android | Android |
