7.9Display5.8
Dimensions
Size comparison
HaloSiona 2 Nano
| Halo | Siona 2 Nano | Difference | |
|---|---|---|---|
| Case size | 42 mm | 37 mm | +5 mm |
| Thickness | 10 mm | 6.9 mm | +3.1 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is Halo better than Siona 2 Nano?
- Battery life (smartwatch mode)7 days vs 6 days+17%
- Screen size1.43″ vs 1.3″+10%
Why is Siona 2 Nano better than Halo?
- Thickness10 mm vs 6.9 mm+45%
Specifications
Side by side
| Design & durability | ||
| Case size | 42 mm | 37 mm |
| Thickness | 10 mm | 6.9 mm |
| Strap material | Leder | Edelstahl |
| Display | ||
| Screen size | 1.43″ | 1.3″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | Yes | Yes |
| Resolution (width) | 466 px | — |
| Resolution (height) | 466 px | — |
| Battery | ||
| Battery life (smartwatch mode) | 7 days | 6 days |
| Battery capacity | 300 mAh | — |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | — | Yes |
| ECG | — | Yes |
| Sleep tracking | — | Yes |
| Sensors | — | heart rate, SpO2, accelerometer |
| Sports & navigation | ||
| Multisport / triathlon mode | — | Yes |
| Connectivity | ||
| Bluetooth | 5.3 | 5 |
| Platform | ||
| Works with | — | iOS, Android |









