Verdict
Head-to-head · Best Water Flossers

Waterpik Aquarius vs Waterpik Cordless Advanced 2.0 Water Flosser

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

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The short answer

Waterpik Aquarius comes out ahead by a clear margin (4.7 vs 4.4). Waterpik Aquarius is best for: people with a power outlet near the sink who want a countertop flosser with fine pressure control. Read the strengths below before deciding.

Waterpik Aquarius
Higher ratedRanked #2 in Best Water Flossers
Waterpik Aquarius
1 source$94.4as of Oct 12

The Waterpik Aquarius (WP-660) is a mains-powered countertop water flosser with a 22-ounce reservoir, ten pressure settings from 10 to 100 PSI, a floss and a massage mode, and a 30-second pacer. Electric Teeth names it the best countertop water flosser available and praises its plaque removal, grippy pressure dial and rotating nozzle. Its reservations are the price, the seven included tips being more than most people will use, and noise of up to 72 decibels that it calls average rather than 'ultra quiet'.

Strengths
  • — Ten pressure settings from 10 to 100 PSI on a textured dial that Electric Teeth found easy to adjust
  • — 22-ounce (651ml) removable reservoir gave Electric Teeth about 90 seconds at the highest setting and 4 minutes 45 seconds at the lowest
  • — Pacer pauses the water at 30 and 60 seconds, and can be switched off
Watch-outs
  • — Electric Teeth lists the price as a con, describing it as a premium option at a $99.99 retail price
  • — Needs a power outlet: there is no battery, and the cord is about 4.5 feet long
  • — Up to 72 decibels in use, which Electric Teeth considers average rather than the 'ultra quiet' Waterpik claims
Waterpik Cordless Advanced 2.0 Water Flosser
Ranked #4 in Best Water Flossers
Waterpik Cordless Advanced 2.0 Water Flosser
1 sourceall derived

The Waterpik Cordless Advanced 2.0 Water Flosser features PRECISIONPULSE technology designed to remove up to 99.9% of plaque bacteria, according to dental professionals. Users appreciate its cordless design for travel and ease of use, with battery life lasting several weeks. However, Electric Teeth notes it is a bit expensive and takes up to 8 hours to recharge, and VICE found the filling hole small. The device includes interchangeable heads for different cleaning needs.

Strengths
  • — Cordless design allows for easy travel and use without being tethered to a power source
  • — Includes interchangeable heads including standard and plaque-finding options
  • — Battery lasts several weeks with daily use, per Electric Teeth
Watch-outs
  • — Full recharge takes up to 8 hours, per Electric Teeth
  • — Bulky magnetic charger ships with only a USB-A cable and no wall adapter

Derived means the reviewer published no score, so one was inferred from their written verdict. Everything else is a number the publisher printed. How we rank.

How they stack up

Waterpik Aquarius

The Waterpik Aquarius must stay plugged in, where the Waterpik ION Professional Water Flosser (WF-12) runs from a rechargeable battery. Electric Teeth, which reviewed both, makes the Aquarius its first choice for a countertop flosser and found its ridged rotating nozzle easier to turn than the ION's; the Aquarius holds 22 ounces of water against the ION Professional's 20.

Waterpik Cordless Advanced 2.0 Water Flosser

The Waterpik Cordless Advanced 2.0 Water Flosser recharges through a magnetic charger, where the Waterpik Cordless Express runs on three AA batteries. It has three pressure settings and a 7-ounce tank against the Express's two settings and 5 ounces. Its battery is listed at up to 4 weeks, half the up-to-8-weeks figure for the Quip Rechargeable Cordless Water Flosser, and a full recharge takes up to 8 hours.

Specs side-by-side

SpecWaterpik AquariusWaterpik Cordless Advanced 2.0 Water Flosser
Water Capacity22 Ounces ( 651 ml )7 Ounces ( 207 ml )
Nozzle Types7 flossing tipsInterchangeable
Cleaning ModesFloss and Hydro-Pulse Massage3 pressure settings
TypeCountertopCordless
Dimensions3.8 x 4.7 x 10.3 inches; 1.46 pounds4 x 2.8 x 11.6 inches; 12.8 ounces
Charging Type—Cordless
Battery Life—up to 4 weeks
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