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The differences between the Oral-B iO Series of electric toothbrushes explained in detail with tables, lists and hands on images.

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Oral-B iO Series 4 vs 5 vs 6 vs 7 vs 8 vs 9 vs 10 comparison

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Oral-B iO 9 vs. 8 vs. 7 vs. 6 What are the differences?

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