vs
Why is SoundLink Flex SE better than Session 540?
SoundLink Flex SE has no measurable advantages in this pair.
Why is Session 540 better than SoundLink Flex SE?
Session 540 has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Driver size | — | 49.5 mm |
| Output power | — | 10 W |
| Speaker channels | 2.0 | — |
| Channel count | 2 | — |
| Lowest frequency | — | 20 Hz |
| Highest frequency | — | 20,000 Hz |
| Adjustable equaliser | — | Yes |
| Stereo | Yes | — |
| Battery & charging | ||
| Battery life | — | 40 h |
| Quick charge (claimed) | — | 10 min → 3.5 h |
| Fast charging support | — | Yes |
| Mains powered | No | — |
| Battery powered (portable) | No | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.3 |
| Multipoint (two devices) | — | Yes |
| LE Audio | — | Yes |
| Auracast | — | Yes |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Weight | — | 320 g |
| Protection rating | IP67 | IP67 |
| Water resistance (IPx) | IPx7 | IPx7 |
| Dust protection (IP) | 6 | 6 |
| Colours | — | Leopard, Plasma, Primer, True Black, Cement |
| Features | ||
| Party / stereo pairing | — | Yes |





