vs
2.5Sound4.6
8.3Build & features8.4
Why is ES20 better than Session 540?
ES20 has no measurable advantages in this pair.
Why is Session 540 better than ES20?
- Battery life15 h vs 40 h2.7×
- Output power6 W vs 10 W+67%
- Lowest frequency93 Hz vs 20 Hz4.6×
- Driver size43 mm vs 49.5 mm+15%
- Highest frequency19,000 Hz vs 20,000 Hz+5%
Specifications
Side by side
| Sound | ||
| Driver size | 43 mm | 49.5 mm |
| Output power | 6 W | 10 W |
| Lowest frequency | 93 Hz | 20 Hz |
| Highest frequency | 19,000 Hz | 20,000 Hz |
| Adjustable equaliser | — | Yes |
| Battery & charging | ||
| Battery life | 15 h | 40 h |
| Quick charge (claimed) | — | 10 min → 3.5 h |
| Fast charging support | — | Yes |
| Battery powered (portable) | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 5.3 |
| Bluetooth codecs | SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | — |
| aptX | No | — |
| LDAC | No | — |
| Multipoint (two devices) | — | Yes |
| LE Audio | — | Yes |
| Auracast | — | Yes |
| 3.5 mm jack / AUX | Yes | — |
| Smart & streaming | ||
| Companion app | — | Yes |
| Design & build | ||
| Weight | 326 g | 320 g |
| Width | 90 mm | — |
| Height | 94 mm | — |
| Depth | 50 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 |
