Why is 9720 better than E Circle?
- Weight28 g vs 32 g+14%
Why is E Circle better than 9720?
- AMOLED / OLED displayNo · 9720: Yes
- Battery capacity140 mAh vs 188 mAh+34%
Specifications
Side by side
| Design & durability | ||
| Weight | 28 g | 32 g |
| Thickness | 11 mm | — |
| Case material | Aluminium | — |
| Strap material | Silikon | — |
| Water rating (maker) | — | 5 m |
| Colours | Silver | Black |
| Display | ||
| Screen size | 1.45″ | — |
| Display technology | — | AMOLED |
| Panel | Farbdisplay | AMOLED |
| AMOLED / OLED display | No | Yes |
| Battery | ||
| Battery capacity | 140 mAh | 188 mAh |
| Battery type | Li-Po | — |
| Health sensors | ||
| Optical heart rate | Yes | — |
| Blood oxygen (SpO2) | Yes | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate, SpO2 | SpO2, accelerometer |
| Connectivity | ||
| Bluetooth | — | 5 |
| Platform | ||
| Works with | iOS, Android | iOS, Android |









