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  

Magnetic Charger Replacement for Oral-B iO Series 7/8/9 Electric Toothbrush, Magnetic Charging Base Compatible with Oral-B Electric Toothbrush iO Series (Black) : Health & Household

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

Oral-B iO Series 7G Electric Toothbrush with 1 Brush Head, White Alabster

Oral-B's iO smart toothbrush is a big upgrade in just about every way

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Oral-B iO7 review - USA

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Best Oral-B electric toothbrush deals for February 2024

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Oral B iO9 Smart Sonic Electric Toothbrush Teeth Whitening Dental Automatic Brush Micro-vibrating Tech Rechargeable Travel Box - AliExpress