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Dimensions
Size comparison
Helio CoreJR-FV2
| Helio Core | JR-FV2 | Difference | |
|---|---|---|---|
| Case size | 33.9 mm | 47.5 mm | −13.6 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is Helio Core better than JR-FV2?
Helio Core has no measurable advantages in this pair.
Why is JR-FV2 better than Helio Core?
- Battery life (smartwatch mode)10 days vs 12 days+20%
- Battery capacity232 mAh vs 300 mAh+29%
Specifications
Side by side
| Design & durability | ||
| Case size | — | 48 mm |
| Weight | 11.2 g | — |
| Thickness | 9.6 mm | — |
| Height | 24.3 mm | — |
| Width | 33.9 mm | — |
| Case material | Plastic / polymer | — |
| Water resistance | 5 ATM | — |
| Colours | — | Silver |
| Display | ||
| Screen size | — | 1.43″ |
| Display technology | No display | AMOLED |
| Panel | — | AMOLED |
| AMOLED / OLED display | — | Yes |
| Resolution (width) | — | 466 px |
| Resolution (height) | — | 466 px |
| Battery | ||
| Battery life (smartwatch mode) | 10 days | 12 days |
| Battery capacity | 232 mAh | 300 mAh |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | — | Yes |
| Sleep tracking | — | Yes |
| Sensors | — | heart rate, SpO2 |
| Sports & navigation | ||
| Built-in GPS | No | — |
| Connectivity | ||
| Bluetooth | 5.2 | — |
| Platform | ||
| Platform | Proprietary | — |
| Works with | iOS, Android | — |









