CNET85est.
After a week or more of testing, the reviewer names the Ion the best water flosser overall thanks to its compact body, big tank and broad tip set.
Waterpik ION
2 expert reviews so farChecked 1 Nov 2026
Photo coming
Not enough reviews for a critic score yet
What critics say so far
We have found 2 professional reviews of the exact Waterpik ION so far. Both critics recommend it.
Reviewed by CNET and Good Housekeeping · reviews checked 1 Nov 2026
What do critics say about the Waterpik ION?
Good Housekeeping85est.
Named best overall in a lab and consumer-panel water flosser test, praised for its full feature set at a fair price and its cordless flexibility.
85
Provisional score · average of 2 professional reviews, 2 of them estimated
Too few reviews for a critic score, so it isn't ranked. We publish a full score once 4 professional reviews of the exact model exist.
Too few reviews for a critic score, so it isn't ranked. We publish a full score once 4 professional reviews of the exact model exist.
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Scores are converted to 0–100. "est." means the outlet gave no number, so we estimated one from its verdict. How we score
Common questions
Does the Waterpik ION have a critic score?
Not yet. We have found 2 professional reviews of the exact model. Their average is 85, which we show as a provisional score. We publish a critic score, and rank the product, once at least 4 reviews exist.