vs
4.6Sound6.1
9.5Battery7.9
8.4Build & features5.4
Why is Session 540 better than ULT FIELD 3?
- Battery life40 h vs 24 h+67%
- Weight320 g vs 1,200 g3.8×
Why is ULT FIELD 3 better than Session 540?
- Output power10 W vs 30 W3×
Specifications
Side by side
| Sound | ||
| Driver size | 49.5 mm | — |
| Output power | 10 W | 30 W |
| Lowest frequency | 20 Hz | 20 Hz |
| Highest frequency | 20,000 Hz | 20,000 Hz |
| Adjustable equaliser | Yes | — |
| Battery & charging | ||
| Battery life | 40 h | 24 h |
| Quick charge (claimed) | 10 min → 3.5 h | — |
| Fast charging support | Yes | — |
| Power bank function | — | Yes |
| Mains powered | — | No |
| Battery powered (portable) | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.3 | 5.2 |
| Bluetooth codecs | — | AAC, SBC |
| Hi-res codec (LDAC / aptX HD / LHDC) | — | No |
| aptX | — | No |
| LDAC | — | No |
| Multipoint (two devices) | Yes | — |
| LE Audio | Yes | — |
| Auracast | Yes | — |
| USB-C | — | Yes |
| Smart & streaming | ||
| Companion app | Yes | — |
| Design & build | ||
| Weight | 320 g | 1,200 g |
| Width | — | 256 mm |
| Height | — | 113 mm |
| Depth | — | 79 mm |
| Protection rating | IP67 | IP67 |
| Water resistance (IPx) | IPx7 | IPx7 |
| Dust protection (IP) | 6 | 6 |
| Colours | Plasma, Primer, True Black, Cement | — |
| Features | ||
| Hands-free calls | — | Yes |
| Party / stereo pairing | Yes | Yes |
