vs
4.8Sound3.4
Dimensions
Size comparison
BB-820GravaStar Mars
| BB-820 | GravaStar Mars | Difference | |
|---|---|---|---|
| Height | 140 mm | 190.5 mm | −50.5 mm |
| Width | 250 mm | 180 mm | +70 mm |
| Depth | 140 mm | 201 mm | −61 mm |
| Weight | 2,800 g | 2,100 g | +700 g |
Drawn to the same scale from the official dimensions (front and side).
Why is BB-820 better than GravaStar Mars?
- Channel count2 vs 12×
- StereoYes · GravaStar Mars: No
Why is GravaStar Mars better than BB-820?
- Battery life10 h vs 20 h2×
- Weight2,800 g vs 2,100 g+33%
Specifications
Side by side
| Sound | ||
| Output power | 20 W | 20 W |
| Speaker channels | 2.0 | 1.0 |
| Channel count | 2 | 1 |
| Stereo | Yes | No |
| Battery & charging | ||
| Battery life | 10 h | 20 h |
| Battery capacity | 5,200 mAh | — |
| 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 |
| 3.5 mm jack / AUX | Yes | — |
| Design & build | ||
| Weight | 2,800 g | 2,100 g |
| Width | 250 mm | 180 mm |
| Height | 140 mm | 190 mm |
| Depth | 140 mm | 201 mm |
| Water resistance (IPx) | — | IPx4 |
| Features | ||
| Light effects | — | Yes |
