Independent testing
How much independent testing exists for each electric toothbrush
Of the 8 electric toothbrushes we track, 4 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 |
|---|---|---|---|
| Oral-B Pro 1000 | 1 | 2 | 1 |
| Colgate hum Smart Electric Toothbrush (Rechargeable) | 1 | 1 | 3 |
| Oral-B iO Series 9 | 1 | 1 | 1 |
| SURI 2.0 Sustainable Electric Toothbrush | 1 | 1 | 1 |
| Oral-B iO Series 10 | 0 | 0 | 1 |
| Oral-B iO Series 6 | 0 | 0 | 1 |
| Philips Sonicare DiamondClean 9900 Prestige | 0 | 0 | 1 |
| quip Ultra Next Generation Smart Sonic Electric Toothbrush | 0 | 0 | 1 |
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 Electric Toothbrushes buying guide and the reviewers we cite.