34% under what the other stores charge
Compared across 6 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission.
It checks today's price at every store, compares the alternatives and answers in about a minute.
The Waterpik Sonic-Fusion 2.0 is a two-in-one device: a sonic toothbrush with a water flosser built into the brush head, so you brush and floss in one step. It runs up to 100 PSI of water pressure and a sonic motor Waterpik claims is up to twice the bristle tip speed of a standard brush. The rechargeable lithium-ion battery gives about 60 seconds of flossing time per charge, and it comes with a premium travel case. At $119.99 at eBay as of November 7, 2026, it sits at the low end of its recent range across the six stores that list it new.
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Lowest price we've seen: $119.99 on Nov 7 at eBay. Tracked across 6 stores since Nov 7.
Owners like the one-step brushing and flossing and say their gums feel cleaner, but many complain about the short flossing runtime and the cost of replacement heads.
