Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Marshall - Stockwell III | Sonos - Move 2 |
|---|---|---|
| Output power | 30 W | 70 W |
| Battery | 27 h | 24 h |
| Low-end response | 50 Hz | 47 Hz |
| Water resistance | IPX4 | IP56 |
Between the Stockwell III and Move 2, the Stockwell III comes out ahead in battery, while the Move 2 wins on output power / low-end response. Overall, the Stockwell III scores 61.4 and the Move 2 scores 71.5 on our Mars Score.
Which should you buy?
The Move 2 is the clear pick on raw spec strength, leading by 10.1 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. The biggest gaps in its favor are battery. The single most decisive one: Battery — 12.50% more. 27 h vs 24 h.
Pick the Move 2 if you care most about output power / low-end response. Its strongest claims are output power, low-end response, water resistance. The single most decisive one: Output power — 133.33% more. 70 W vs 30 W.
Both ship with comparable stereo pairing, so those specs do not separate the two — focus on the differences below.
Bottom line: the Move 2 is the safer default. The other model is the right choice only when its specific advantages line up with your priorities.
Which should you buy: Marshall - Stockwell III or Sonos - Move 2?
Sonos - Move 2 leads the current Mars Score by 10.1 points.The more useful decision is the trade-off behind that result: compare output power, battery, water resistance against the way you will actually use the product.
Choose Marshall - Stockwell III if…
Marshall - Stockwell III has the measurable edge on battery h.
Choose Sonos - Move 2 if…
Sonos - Move 2 has the measurable edge on output w, frequency low hz, ip rating.
This is a structured comparison of the published catalog values. It is not a claim of identical real-world performance across every workload; use the linked spec drill-downs and methodology page to inspect the inputs.
Why Marshall - Stockwell III wins
- ▲Battery — 12.50% more. 27 h vs 24 h.
Why Sonos - Move 2 wins
- ▲Output power — 133.33% more. 70 W vs 30 W.
- ▲Low-end response — 3.00 Hz less. 47 vs 50.
- ▲Water resistance: IP56 (vs IPX4).
Spec comparison
Audio
| Spec | Marshall - Stockwell III | Sonos - Move 2 |
|---|---|---|
| Output power | 30 W | 70 Wlead |
| Low-end response | 50 Hz | 47 Hzlead |
| Stereo pairingⓘ | true | true |
Durability
| Spec | Marshall - Stockwell III | Sonos - Move 2 |
|---|---|---|
| Water resistanceⓘ | IPX4 | IP56lead |
| Weight | 1390 glead | 3000 g |
Battery
| Spec | Marshall - Stockwell III | Sonos - Move 2 |
|---|---|---|
| Battery | 27 hlead | 24 h |
| USB out (powerbank) | false | false |