vs
9.2Battery8.3
5.5Build & features6.7
Why is Session 900 better than X20?
- Battery life49 h vs 24 h2×
- Bluetooth version6 vs 5.4+11%
Why is X20 better than Session 900?
- Output power50 W vs 200 W4×
Specifications
Side by side
| Sound | ||
| Driver size | 93 mm | — |
| Output power | 50 W | 200 W |
| Lowest frequency | 50 Hz | — |
| Highest frequency | 20,000 Hz | — |
| Spatial / 3D audio | Yes | — |
| Adjustable equaliser | Yes | — |
| Stereo | — | Yes |
| Battery & charging | ||
| Battery life | 49 h | 24 h |
| Battery capacity | — | 30,000 mAh |
| Charging time | — | 3 h |
| Quick charge (claimed) | 10 min → 3.5 h | — |
| Fast charging support | Yes | — |
| Power bank function | Yes | Yes |
| Mains powered | — | No |
| Battery powered (portable) | Yes | Yes |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 6 | 5.4 |
| Bluetooth codecs | — | 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 | Yes |
| Smart & streaming | ||
| Companion app | Yes | — |
| Design & build | ||
| Weight | 1,050 g | — |
| Width | — | 530 mm |
| Height | — | 300 mm |
| Depth | — | 245 mm |
| Protection rating | IP67 | IPX7 |
| Water resistance (IPx) | IPx7 | IPx7 |
| Dust protection (IP) | 6 | — |
| Colours | Cement, True Black, Primer | Black |
| Features | ||
| Hands-free calls | Yes | — |
| Party / stereo pairing | Yes | Yes |
