Independent testing
How much independent testing exists for each portable speaker
Of the 6 portable speakers we track, 6 have been physically measured by at least one independent lab. Below is every one, ordered by how much independent hands-on evidence stands behind it — densest first.
A coverage record, not a ranking of which is best.
| Product | Independent labs | Metrics measured | Outlets on record |
|---|---|---|---|
| Sonos Move 2 | 2 | 2 | 4 |
| Marshall Emberton III | 2 | 1 | 2 |
| Bose SoundLink Max | 1 | 5 | 3 |
| JBL Flip 7 | 1 | 5 | 3 |
| Bose SoundLink Flex (2nd Gen) | 1 | 3 | 2 |
| JBL Charge 5 | 1 | 2 | 3 |
Each figure is a count of what independent testers actually did — how we count. A low count means little independent evidence has been gathered yet, never that a product is worse. See also the Portable Speakers buying guide and the reviewers we cite.