Waterpik Ion Water Flosser vs Waterpik Aquarius Water Flosser

Both are Waterpik countertop-class flossers with 10 pressure settings and a 22 oz reservoir, so the real split is corded versus cordless. The Aquarius is the stronger daily machine: higher pulse rate, a proven gum-health claim, a smaller footprint and a tongue-cleaner nozzle option, and owners rate it well. The Ion trades that for a rechargeable handle, USB-C charging and a magnetic cradle, which suits small bathrooms, travel and shared sinks. Pick the Aquarius for maximum cleaning power at one sink; pick the Ion if you want no cord and a handle you can move around.

• Choose the Waterpik Ion if you want a cordless, rechargeable flosser with a magnetic handle cradle and USB-C charging, and you value a compact, quiet unit over raw pulse rate.
• Choose the Waterpik Aquarius if you want the most cleaning power and a proven gum-health result, and you floss at one sink where a cord is no problem.