Where they actually differ
The most decisive specs, ranked by how much they matter — before the full spec table.
| Spec | Sonos - Roam 2 | Anker - Boom 2 Plus |
|---|---|---|
| Output power | 30 W | 140 W |
| Battery | 10 h | 20 h |
| Low-end response | 60 Hz | 45 Hz |
Between the Roam 2 and Boom 2 Plus, the Roam 2 comes out ahead in several specs, while the Boom 2 Plus wins on output power / battery. Overall, the Roam 2 scores 60.7 and the Boom 2 Plus scores 80.3 on our Mars Score.
Which should you buy?
The Boom 2 Plus is the clear pick on raw spec strength, leading by 19.6 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.
The Roam 2 does not pull ahead on any single popular-comparison spec — its strengths sit in the spec-table groups rather than the headline advantages.
Pick the Boom 2 Plus if you care most about output power / battery. Its strongest claims are output power, battery, low-end response. The single most decisive one: Output power — 366.67% more. 140 W vs 30 W.
Both ship with comparable water resistance, stereo pairing, so those specs do not separate the two — focus on the differences below.
Bottom line: the Boom 2 Plus 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: Sonos - Roam 2 or Anker - Boom 2 Plus?
Anker - Boom 2 Plus leads the current Mars Score by 19.6 points.The more useful decision is the trade-off behind that result: compare output power, battery against the way you will actually use the product.
Choose Sonos - Roam 2 if…
Sonos - Roam 2 does not lead a decisive measured field here, so choose it for price, ecosystem, design, or availability when those matter more to you.
Choose Anker - Boom 2 Plus if…
Anker - Boom 2 Plus has the measurable edge on output w, battery h, frequency low hz.
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 Sonos - Roam 2 wins
- No decisive advantages.
Why Anker - Boom 2 Plus wins
- ▲Output power — 366.67% more. 140 W vs 30 W.
- ▲Battery — 100.00% more. 20 h vs 10 h.
- ▲Low-end response — 15.00 Hz less. 45 vs 60.
Spec comparison
Audio
| Spec | Sonos - Roam 2 | Anker - Boom 2 Plus |
|---|---|---|
| Output power | 30 W | 140 Wlead |
| Low-end response | 60 Hz | 45 Hzlead |
| Stereo pairingⓘ | true | true |
Durability
| Spec | Sonos - Roam 2 | Anker - Boom 2 Plus |
|---|---|---|
| Water resistanceⓘ | IP67 | IP67 |
| Weight | 430 glead | 2700 g |
Battery
| Spec | Sonos - Roam 2 | Anker - Boom 2 Plus |
|---|---|---|
| Battery | 10 h | 20 hlead |
| USB out (powerbank) | false | truelead |