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Dimensions
Size comparison
Series 54 SmartwatchSiona 2
| Series 54 Smartwatch | Siona 2 | Difference | |
|---|---|---|---|
| Case size | 46 mm | 42 mm | +4 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is Series 54 Smartwatch better than Siona 2?
Series 54 Smartwatch has no measurable advantages in this pair.
Why is Siona 2 better than Series 54 Smartwatch?
Siona 2 has no measurable advantages in this pair.
Specifications
Side by side
| Design & durability | ||
| Case size | 46 mm | 42 mm |
| Thickness | — | 6.9 mm |
| Case material | Aluminium | — |
| Lens / cover glass | Mineralglas Mineralglas | — |
| Strap material | Silikon | — |
| Colours | Black | — |
| Display | ||
| Screen size | — | 1.3″ |
| Display technology | AMOLED | AMOLED |
| Panel | AMOLED | AMOLED |
| AMOLED / OLED display | Yes | Yes |
| Always-on display | — | Yes |
| Battery | ||
| Battery life (smartwatch mode) | — | 2 days |
| Battery capacity | — | 150 mAh |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | — | Yes |
| ECG | — | Yes |
| Sleep tracking | — | Yes |
| Sensors | barometer | heart rate, SpO2, accelerometer |
| Sports & navigation | ||
| Built-in GPS | Yes | — |
| Satellite systems | GPS | — |
| Barometric altimeter | Yes | — |
| Compass | Yes | — |
| Multisport / triathlon mode | — | Yes |
| Connectivity | ||
| LTE (cellular) | Yes | — |
| Bluetooth | — | 5 |
| Platform | ||
| Works with | iOS, Android | iOS, Android |
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