Oral-B iO Series 9 vs Philips Sonicare DiamondClean Smart
Winner Oral-B iO Series 9 has the higher overall owner score (3.3) in our data.
| Oral-B iO Series 9 | Philips Sonicare DiamondClean Smart | |
|---|---|---|
| Photo |  | PH |
| Overall | 3.3 | 3.2 |
| Owner sentiment | 3.9 | 3.7 |
| Recommendations | 4.7 | 3.0 |
| Value | 1.0 | 2.4 |
| Owner comments | 30 | 13 |
| Price snapshot | $279.99 (price as of 2026-11-07) | $199.96 (price as of 2026-11-07) |
Specs (shared fields)
| Oral-B iO Series 9 | Philips Sonicare DiamondClean Smart | |
|---|---|---|
| Brand Name | Oral-B | Philips Sonicare |
| Age Range Description | Adult | Adult |
| Included Components | Timer, Travel Case | Travel Case |
| Model Name | series 9 | DiamondClean Smart |
| Target Audience | Unisex-Adults | Unisex-Adults |
| Model Number | iOM9.4B2.2A | HX9903/15 |
| Manufacturer Part Number | iOM9.4B2.2A | HX9903/15 |
| Other Special Features of the Product | Pressure Sensor | Pressure Sensor,Brushing Timer,Rechargeable,Lightweight,Ergonomic |
| Power Source | Corded Electric | Battery Powered |
| Item Firmness Description | Soft | Soft |
| Toothbrush Head Shape | Round | Diamond Shaped |
| Operation Mode | Automatic | Electric |
Where owner praise diverges
Owners praise the Oral-B iO Series 9 more for value, and the Philips Sonicare DiamondClean Smart more for cleaning.
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Oral-B iO Series 9 review · Philips Sonicare DiamondClean Smart review