Between the Emberton III and Roam 2, the Emberton III comes out ahead in battery, while the Roam 2 wins on output power. Overall, the Emberton III scores 66.8 and the Roam 2 scores 46.6 on our Mars Score.
Which should you buy?
The Emberton III is the clear pick on raw spec strength, leading by 20.2 points on the Mars Score. The margin is wide enough that the underdog only makes sense if its individual strengths line up with what you specifically need.
Pick the Emberton III if you care most about battery. The biggest gaps in its favor are battery.
Pick the Roam 2 if you care most about output power. Its strongest claims are output power.
Both ship with comparable water resistance, low-end response, stereo pairing, so those specs don't separate the two — focus on the differences below.
Bottom line: the Emberton III is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Marshall - Emberton III wins
- ▲Battery — 220.00% more. 32 h vs 10 h.
Why Sonos - Roam 2 wins
- ▲Output power — 50.00% more. 30 W vs 20 W.
Spec comparison
Audio
| Spec | Marshall - Emberton III | Sonos - Roam 2 |
|---|---|---|
| Output power | 20 W | 30 Wlead |
| Low-end response | 60 Hz | 60 Hz |
| Stereo pairing | true | true |
Durability
| Spec | Marshall - Emberton III | Sonos - Roam 2 |
|---|---|---|
| Water resistanceⓘ | IP67 | IP67 |
| Weight | 700 g | 430 glead |
Battery
| Spec | Marshall - Emberton III | Sonos - Roam 2 |
|---|---|---|
| Battery | 32 hlead | 10 h |
| USB out (powerbank) | false | false |
Frequently asked
Spec-level deep dives
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