Dimensions
Size comparison
JR-FV2ONAIR
| JR-FV2 | ONAIR | Difference | |
|---|---|---|---|
| Case size | 47.5 mm | 23 mm | +24.5 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is JR-FV2 better than ONAIR?
- AMOLED / OLED displayYes · ONAIR: No
- Battery capacity300 mAh vs 180 mAh+67%
Why is ONAIR better than JR-FV2?
- Battery life (smartwatch mode)12 days vs 25 days2.1×
Specifications
Side by side
| Design & durability | ||
| Case size | 48 mm | — |
| Weight | — | 15 g |
| Thickness | — | 11 mm |
| Height | — | 46 mm |
| Width | — | 23 mm |
| Case material | — | Plastic / polymer |
| Colours | Silver | — |
| Display | ||
| Screen size | 1.43″ | — |
| Display technology | AMOLED | — |
| Panel | AMOLED | — |
| AMOLED / OLED display | Yes | No |
| Resolution (width) | 466 px | — |
| Resolution (height) | 466 px | — |
| Battery | ||
| Battery life (smartwatch mode) | 12 days | 25 days |
| Battery capacity | 300 mAh | 180 mAh |
| Health sensors | ||
| Optical heart rate | Yes | Yes |
| Blood oxygen (SpO2) | Yes | Yes |
| Skin temperature | — | Yes |
| HRV tracking | — | Yes |
| Sleep tracking | Yes | Yes |
| Sensors | heart rate, SpO2 | heart rate, SpO2, temperature |
