Dimensions
Size comparison
ZeroBSP-4
| Zero | BSP-4 | Difference | |
|---|---|---|---|
| Height | 35 mm | 51 mm | −16 mm |
| Width | 450 mm | 114 mm | +336 mm |
| Depth | 45 mm | 93 mm | −48 mm |
Drawn to the same scale from the official dimensions (front and side).
Why is Zero better than BSP-4?
- Charging time1.5 h vs 3 h2×
Why is BSP-4 better than Zero?
- Battery capacity250 mAh vs 1,200 mAh4.8×
Specifications
Side by side
| Sound | ||
| Output power | 3 W | — |
| Speaker channels | 1.0 | — |
| Channel count | 1 | — |
| Lowest frequency | 20 Hz | — |
| Highest frequency | 20,000 Hz | — |
| Stereo | No | — |
| Battery & charging | ||
| Battery life | 4 h | 4 h |
| Battery capacity | 250 mAh | 1,200 mAh |
| Charging time | 1.5 h | 3 h |
| Mains powered | No | No |
| Battery powered (portable) | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | — | 5 |
| Bluetooth codecs | SBC | SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| USB-C | Yes | Yes |
| Design & build | ||
| Weight | 30 g | — |
| Width | 450 mm | 114 mm |
| Height | 35 mm | 51 mm |
| Depth | 45 mm | 93 mm |
| Protection rating | IPX6 | — |
| Water resistance (IPx) | IPx6 | — |
| Features | ||
| Hands-free calls | Yes | — |
