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.
Check price at Amazon
We earn a commission if you buy through these links. It never changes a score.
Scores are converted to 0–100. "est." means the outlet gave no number, so we estimated one from its verdict and checked our estimates against ratings outlets print. How we check estimates
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.