Why is 9720 better than Charge 6?
- Weight28 g vs 51 g+82%
- Screen size1.45″ vs 1″+45%
- Battery capacity140 mAh vs 65 mAh2.2×
Why is Charge 6 better than 9720?
Charge 6 has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Weight | 28 g | 51 g |
| Thickness | 11 mm | — |
| Case material | Aluminium | Aluminium |
| Lens / cover glass | — | Gorillaglas |
| Strap material | Silikon | Silikon |
| Water resistance | — | 5 ATM |
| Water rating (maker) | — | 50 m |
| Colours | Silver | — |
| Display | ||
| Screen size | 1.45″ | 1″ |
| Display technology | — | AMOLED |
| Panel | Farbdisplay | — |
| AMOLED / OLED display | No | — |
| Touchscreen | — | Yes |
| Battery | ||
| Battery life (smartwatch mode) | — | 7 days |
| Battery capacity | 140 mAh | 65 mAh |
| Battery type | Li-Po | Li-Po |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | — | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate, SpO2 | heart rate, accelerometer |
| Sports & navigation | ||
| Built-in GPS | — | Yes |
| Satellite systems | — | GPS |
| Connectivity | ||
| NFC payments | — | Yes |
| Bluetooth | — | 4 |
| Platform | ||
| Works with | iOS, Android | iOS, Android |
