
Oral-B iO Series 9
Best for: Best for buyers who want the most complete brushing coach Oral-B makes
Product review
The iO Series 9 is Oral-B's flagship: a magnetic-drive round head, seven modes, a color display and a pressure ring that glows green, white or red as you brush. It cleans superbly and coaches better than anything else in this ranking. The honest question is whether the coaching is worth roughly double the iO Series 6, which shares the same cleaning platform.
The company
Oral-B is the oral-care brand of Procter & Gamble; its rechargeable handles are built by Braun, and the iO line is its premium platform.
- ADA Accepted, with 3D teeth tracking and app coaching that shows missed zones in real time
- The oralb.com kit is generous: 4 Ultimate Clean heads, a Power2Go charging travel case and a magnetic charger that refills in about 3 hours
- Interactive color display shows mode, timer and pressure feedback on the handle itself
- The most expensive handle here, and iO heads run about $10–$15 each, so ownership stays premium
- Some owners find the AI coverage tracking hit-and-miss and end up ignoring the app
- Measured noise around 72 dB in independent testing — noticeably louder than sonic rivals
Oral-B iO Series 9








