Between the Stockwell III and Roam 2, the Stockwell III comes out ahead in battery and low-end response, while the Roam 2 wins on water resistance. Overall, the Stockwell III scores 65.3 and the Roam 2 scores 46.6 on our Mars Score.
Which should you buy?
The Stockwell III is the clear pick on raw spec strength, leading by 18.7 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 Stockwell III if you care most about battery and low-end response. The biggest gaps in its favor are battery, low-end response.
Pick the Roam 2 if you care most about water resistance. Its strongest claims are water resistance.
Both ship with comparable output power, stereo pairing, so those specs don't separate the two — focus on the differences below.
Bottom line: the Stockwell III is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Why Marshall - Stockwell III wins
- ▲Battery — 170.00% more. 27 h vs 10 h.
- ▲Low-end response — 10.00 Hz less. 50 vs 60.
Why Sonos - Roam 2 wins
- ▲Water resistance: IP67 (vs IPX4).
Spec comparison
Audio
| Spec | Marshall - Stockwell III | Sonos - Roam 2 |
|---|---|---|
| Output power | 30 W | 30 W |
| Low-end response | 50 Hzlead | 60 Hz |
| Stereo pairing | true | true |
Durability
| Spec | Marshall - Stockwell III | Sonos - Roam 2 |
|---|---|---|
| Water resistanceⓘ | IPX4 | IP67lead |
| Weight | 1390 g | 430 glead |
Battery
| Spec | Marshall - Stockwell III | Sonos - Roam 2 |
|---|---|---|
| Battery | 27 hlead | 10 h |
| USB out (powerbank) | false | false |
Frequently asked
Spec-level deep dives
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