Anyone else’s inaccurate? app says i’m brushing one side of my mouth when i’m actually brushing the other. for a $300 toothbrush this is unacceptable

Remember to run it across your teeth gradually, not brush like with a manual toothbrush. That should help with the accuracy. The toothbrush has a sensor in it for which angle it's in and how your holding it.

What is the specific difference among iO 7, 8, 9 series ?

We'd be happy to point out some key differences among our iO 7, 8, and 9 Series toothbrushes. -iO Series 7: 5 Smart Modes for personalized brushing, interactive black & white display for real-time coaching, 6 zones of brushing recognition, Gum Guard, AI recognition using an interactive display. -iO Series 8: 6 Smart Modes for personalized brushing, interactive color display for real-time coaching, 6 zones of brushing recognition, Gum Guard, AI recognition using an interactive display. -iO Series 9: 7 Smart Modes for personalized brushing, interactive color display for real-time coaching, 16 zones of brushing recognition, Gum Guard HD, AI tracking with 3D Teeth Tracking. The Oral-B Team

Can you use this brush on teeth with veneers

Yes, all Oral-B electric and battery power toothbrushes can be used by those with bridges, implants, crowns, veneers, or fillings. However, we recommend using a slower cleaning mode for even better control. - The Oral-B Team

will the charger work for 220v ac outlet?

Yes, the charger will work for a 110 volt and up to a 220 volt outlet. So, yes it's safe and ready for your European road trip!

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🦷 Elevate your smile game with the smartest brush on the block!

ON THE GO POWER - Fast 3-hour charging and sleek travel case keep your oral care routine seamless anywhere.
AI POWERED PRECISION - Innovative AI tracks brushing coverage across all tooth surfaces for a flawless clean every time.
SMART PRESSURE SENSOR - Protect your gums with real-time feedback to brush just right—not too hard, not too soft.
PLAQUE GONE IN 7 DAYS - Clinically proven 100% more plaque removal vs manual brushing for a visibly healthier smile.
WHITER TEETH FROM DAY ONE - Dentist-inspired round brush head removes surface stains immediately for a brighter smile.

The Oral-B iO Series 9 Electric Toothbrush combines cutting-edge AI position detection, a dentist-inspired round brush head, and a smart pressure sensor to deliver 100% more plaque removal and whiter teeth from day one. With 7 cleaning modes, a vibrant interactive display, and a fast-charging travel case, it’s designed for professionals who demand precision, efficiency, and style in their oral care routine.