Oral-B iO7 vs Oral-B iO9: Which smart electric toothbrush is best?

They may be made by the same company, but these models offer different teeth-cleaning experiences  

The Oral-B iO Series 7 combines powerful, but gentle micro-vibrations for a professional clean feeling every day.

Oral-B iO Series 7 Electric Toothbrush, Sapphire Blue

Oral-B iO Series Comparison

Best Oral-B electric toothbrush deals for February 2024

Oral-B iO Series 7 vs 9

2 Oral-B iO Series 7s Electric Toothbrushes, 3 iO Ultimate Clean Brush Heads, 2 chargers, and 2 travel cases 5 Smart Modes for personalized brushing

Oral-B iO Series 7s Rechargeable Toothbrush with 2 Handles, 2 Chargers, 3 Brush Heads and 2 Deluxe Travel Cases

Oral-B IO Series 9 Electric Toothbrush with 4 Brush Heads, Rose Quartz

Oral-B iO - 7 - Black & White Electric Toothbrushes Designed By Braun - Boots

Oral B iO Series 7 Smart Electric Toothbrush 3D Teeth Tracking Brushing 5 Mode Pressure Sensor Ultimate Clean Replace Brush Head - AliExpress

Oral-B iO7 vs Oral-B iO9: Which smart electric toothbrush is best?