vs
4.1Battery6.9
8.6Build & features8.9
Why is SoundLink Flex (2nd Gen) better than Willen II?
SoundLink Flex (2nd Gen) has no measurable advantages in this pair.
Why is Willen II better than SoundLink Flex (2nd Gen)?
- Battery life12 h vs 17 h+42%
- Weight590 g vs 360 g+64%
- Charging time4 h vs 2.5 h+60%
Specifications
Side by side
| Sound | ||
| Driver type | — | Dynamic |
| Driver size | — | 50.8 mm |
| Output power | — | 38 W |
| Speaker channels | — | 1.0 |
| Channel count | — | 1 |
| Lowest frequency | — | 75 Hz |
| Highest frequency | — | 20,000 Hz |
| Stereo | — | No |
| Battery & charging | ||
| Battery life | 12 h | 17 h |
| Charging time | 4 h | 2.5 h |
| Quick charge (claimed) | — | 20 min → 5.5 h |
| Fast charging support | — | Yes |
| Mains powered | No | No |
| Battery powered (portable) | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.3 |
| Bluetooth codecs | SBC | SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | No |
| aptX | No | No |
| LDAC | No | No |
| LE Audio | — | Yes |
| Auracast | — | Yes |
| USB-C | Yes | Yes |
| Smart & streaming | ||
| Companion app | Yes | Yes |
| Design & build | ||
| Weight | 590 g | 360 g |
| Width | 201 mm | 100 mm |
| Height | 904 mm | 100 mm |
| Depth | 52 mm | 44 mm |
| Protection rating | IP67 | IP67 |
| Water resistance (IPx) | IPx7 | IPx7 |
| Dust protection (IP) | 6 | 6 |
| Features | ||
| Hands-free calls | Yes | Yes |
