This comparison has more detail – although to be fair, I am comparing the iO Series 9 vs the X in this comparison. Reply

Aside from all the bells and whistles the iO 7 advertises, we were most excited to see if it could do the one job an electric toothbrush should be able to do and that is to clean your teeth. The biggest benefit is that it makes it much easier to switch between the brushing modes or see which one you have selected. The brush is light and easy to hold, however, the brush head is noticeably larger than the standard brush heads and cut at an angle, so it does not stand up on its own.From that point on, the app is identical to the one we tested with the Oral-B Genius X. Brushing coach Beyond purely an advance in technology to incorporate world-class engineering - enabling the most thorough, gentle and quiet clean of your life. Beyond design to craft a genuine object of desire - creating a sleek look reserved for the most sought after technology. This sensor goes further though, because it will show you when you are applying insufficient force as well as the correct amount.

The following video I believe will be helpful to you and your son on your journey to better oral health: https://www.youtube.com/watch?v=7k3wjTOhYwY KEEP YOUR MOUTH HEALTHIER FOR LONGER! Join 8 out of 10 people that became better brushers thanks to iO PERSONALIZED GUIDANCE in just 1 week.The iO5 comes with a travel case and a refill holder that holds and protects 2 brush heads. The iO4 does not come with this. The iO Series first launched in 2020, with the Series 7, 8 and 9. It has since evolved from 3 to 8 brushes. iO models command a price premium, particularly when you factor in replacement brush heads. You don’t need a premium model to clean your teeth well.

A brush head should be replaced after about 3 months. After this, the bristles clean less effectively and are more abrasive on the teeth and gums. There may also be an increased amount of bacterial build up. It sits upright on a countertop and gives a home for spare and replacement heads. A removable opaque cap protects them whilst allowing airflow inside to dry wet bristles.The table below shows which iO model has which mode. Should you want to learn more about each, do read our Oral-B cleaning modes explained article. Cleaning Modes In just 1 week, REMOVE 100% MORE PLAQUE and GET 190% HEALTHIER GUMS vs a manual brush by switching to ORAL-B’s MOST ADVANCED TECHNOLOGY The iO9 and 10 can hold the handle and 1 brush head only. This is because you can charge the brush inside the case. There is no battery in the case to do this. Instead, you connect the supplied proprietary power adapter. Electric toothbrush brush heads can be pricey, so it's worth knowing what you're getting when you part with your cash. Combines the unique round brush head from Oral-B with gentle micro-vibrations for a fresh, clean mouthfeel and 100% healthier gums in one week