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 Cordless Advanced 2.0 Water Flosser comes out ahead by a clear margin (3.5 vs 4.2). The gap is mostly about fit for purpose — read the strengths below before deciding.

Waterpik Aquarius
Ranked #9 in Best Water Flossers
Waterpik Aquarius
5 sourcesall derived$79.99as of Aug 31

Consumer Reports reviewed the Waterpik Aquarius water flosser, noting it's a higher-end countertop model with additional features compared to basic units like the Ultra or Nano. The Aquarius includes blue LED indicators, a built-in timer, and a massage mode not found in lower-tier models. While it offers standard water flosser functionality with 600 series pressure capabilities, its $99 MSRP is considerably higher than typical sale prices of $50-60. The unit is sold in black and features a standard push-button control interface. This model is positioned as a premium option for those seeking enhanced features over basic water flossers.

Strengths
  • Features blue LED indicators for easy operation
  • Includes a built-in timer function
  • Has a massage mode not available in lower-end models
Watch-outs
  • Higher price point compared to basic models like Ultra or Nano
  • Retail price of $99 is significantly more than sale prices of $50-60
Waterpik Cordless Advanced 2.0 Water Flosser
Higher ratedRanked #2 in Best Water Flossers
Waterpik Cordless Advanced 2.0 Water Flosser
6 sources2 derived$59.98as of Aug 31

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, some reviewers noted that the reservoir is small and may not last the full cleaning cycle, and others found the device too splashy or cumbersome. The device includes interchangeable heads for different cleaning needs.

Strengths
  • Uses PRECISIONPULSE technology proven to remove up to 99.9% of plaque bacteria
  • Cordless design allows for easy travel and use without being tethered to a power source
  • Includes interchangeable heads including standard and plaque-finding options
Watch-outs
  • Reservoir is small and may run out before completing a full cleaning cycle
  • Some users find the device too splish-splashy and cumbersome to use/store

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.

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 TypeCordless
Battery Lifeup to 4 weeks
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