vs
9.4Display5.8
Why is Watch 2 better than Siona 2 Nano?
- Screen size1.5″ vs 1.3″+15%
Why is Siona 2 Nano better than Watch 2?
Siona 2 Nano has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Case size | — | 37 mm |
| Weight | 31.5 g | — |
| Thickness | — | 6.9 mm |
| Strap material | — | Edelstahl |
| Colours | Black | — |
| Display | ||
| Screen size | 1.5″ | 1.3″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | — | Yes |
| Resolution (width) | 480 px | — |
| Resolution (height) | 480 px | — |
| Battery | ||
| Battery life (smartwatch mode) | — | 6 days |
| Battery capacity | 530 mAh | — |
| Battery type | Li-Ion | — |
| Health sensors | ||
| Optical heart rate | — | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| ECG | — | Yes |
| Sleep tracking | — | Yes |
| Sensors | — | heart rate, SpO2, accelerometer |
| Sports & navigation | ||
| Built-in GPS | Yes | — |
| Satellite systems | GPS | — |
| Multisport / triathlon mode | — | Yes |
| Connectivity | ||
| Bluetooth | 5.3 | 5 |
| Platform | ||
| Works with | iOS, Android | iOS, Android |
