Why is Band 7 better than SMW 20?
- Weight28 g vs 58 g2.1×
- AMOLED / OLED displayYes · SMW 20: No
- Screen size1.47″ vs 1.3″+13%
- Battery capacity232 mAh vs 220 mAh+5%
Why is SMW 20 better than Band 7?
SMW 20 has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Weight | 28 g | 58 g |
| Thickness | 12.2 mm | — |
| Height | 24.4 mm | — |
| Width | 42.3 mm | — |
| Case material | Plastic / polymer | — |
| Lens / cover glass | Tempered glass + | — |
| Water resistance | 5 ATM | — |
| Colours | — | Black |
| Display | ||
| Screen size | 1.47″ | 1.3″ |
| Display technology | AMOLED | LCD |
| Panel | AMOLED | LCD |
| AMOLED / OLED display | Yes | No |
| Touchscreen | Yes | — |
| Resolution (width) | 198 px | — |
| Resolution (height) | 368 px | — |
| Pixel density | 282 ppi | — |
| Battery | ||
| Battery life (smartwatch mode) | 18 days | — |
| Battery capacity | 232 mAh | 220 mAh |
| Charging | Magnetic charging | — |
| Health sensors | ||
| Optical heart rate | — | Yes |
| ECG | — | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | — | heart rate |
| Sports & navigation | ||
| Built-in GPS | No | — |
| Sport profiles | 120 | — |
| Connectivity | ||
| Bluetooth | 5.2 | 4 |
| Smart features | ||
| Microphone | Yes | — |
| Platform | ||
| Operating system | Zepp OS | — |
| Platform | Proprietary | — |
| Works with | iOS, Android | Android |








