Oral B Io Series 7 Electric Toothbrush Black Onyx vs Oral B Io Series 8 Electric Toothbrush Black Onyx By Billy G. · Founder & Lead Editor
Oral B Io
Oral B Io Series 7 Electric Toothbrush Black Onyx
vs
Oral B Io
Oral B Io Series 8 Electric Toothbrush Black Onyx
The Oral-B iO Series 7 Electric Toothbrush Black Onyx and the Oral-B iO Series 8 Electric Toothbrush Black Onyx share the same magnetic drive system, pressure sensor. And round oscillating brush head design, yet diverge in small but noticeable ways. Public reviews and manufacturer specifications show the Series 7 weighs a few grams less, ships with two replacement heads instead of three. And offers five brushing modes against the Series 8’s six. Both models deliver the micro-vibrations and 360-degree gum coverage that define the iO platform, with identical battery life ratings around two weeks on a single charge and the same travel case options. Reviewers note the extra mode on the Series 8 is typically a sensitive or whitening variant that some users appreciate while others rarely engage it. The short version: choose the Oral-B iO Series 7 Electric Toothbrush Black Onyx if a lighter handle. And modest savings matter more than the additional head and mode included with the Oral-B iO Series 8 Electric Toothbrush Black Onyx.
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