Quick Answer
The Waterpik Cordless Advanced Water Flosser ($99.99) is the best Waterpik for most people -- rechargeable, waterproof, 3 pressure settings, and works at the sink or in the shower. The ION Professional is the best upgrade for 30-day battery life and 10 pressure settings.
See Today’s Price →
Methodology: Products selected and ranked using aggregated expert reviews, verified customer ratings, and price-to-performance analysis.
Learn about our research process |
Last updated: May 2026
At a Glance
| # | Product | Award | Price |
| 1 |
|
Best Overall |
$99 Buy → |
| 2 |
|
Best Cordless |
$49 Buy → |
| 3 |
|
Best for Travel |
$99 Buy → |
Waterpik Water Flossers Buying Guide
Photo by Sora Shimazaki / Pexels
Waterpik's lineup covers countertop and cordless water flossers at multiple price points. Here is how to match the right model to your space, budget, and flossing habits.
Aquarius Professional — The Countertop Standard
The Aquarius WP-660 is Waterpik's most popular model and the one most dental offices recommend. It has 10 pressure settings (10-100 PSI), a 22-oz reservoir for 90 seconds of continuous use, and comes with 7 tips — classic jet, orthodontic for braces, periodontic for gum disease, tongue cleaner, and brush tips. The larger reservoir means most people can floss a full mouth without refilling. The countertop form factor makes it the least travel-friendly but the most reliable for daily home use.
Cordless Select — Best for Travel and Small Spaces
The Cordless Select (WP-560) has 3 pressure settings, a 7-oz reservoir, and charges via USB. The USB charging is the main upgrade over older cordless models that used AA batteries — significantly cheaper to run. The smaller reservoir means 45 seconds of use per fill, which is enough for one flossing session but requires refilling mid-mouth for very thorough flossing. Best for travel bags and apartment bathrooms without counter space.
ION Professional — Long Battery Life
The ION Professional (WP-670) is the premium cordless model — magnetic charging, 30-day battery life per charge, and 10 pressure settings in a countertop-free form. It bridges the gap between the compact Cordless Select and the full Aquarius without requiring a permanent countertop spot. The 9-oz reservoir is larger than the Cordless Select.
Shower Flosser
The Waterpik Shower Flosser (WP-072) attaches to any standard shower hose and uses water pressure from the shower head — no electricity, no charging, no reservoir. Pressure varies with your water pressure. The primary advantage is no maintenance; the trade-off is you can only floss in the shower and cannot control pressure as precisely as a powered model.
How We Picked These
We compared Waterpik's 2026 lineup by pressure settings, reservoir capacity, tip variety, and form factor, cross-referencing picks with dental hygienist recommendations and verified buyer reviews. Products were selected to cover home countertop, travel, cordless premium, and shower-based flossing needs.
See detailed reviews below ↓
Our Top Pick
Best for: Mid-range buyers: Anyone looking to improve their daily oral hygiene routine beyond what a manual toothbrush achieves
“”
See Today’s Price →
Watch out for
- Replacement brush heads add ongoing cost to ownership versus disposable manual brushes
- Battery or charging requirements mean it cannot be used when power is unavailable
Skip if: Travelers who need a disposable or ultra-compact option and cannot bring charging cables
See Today’s Price →
Read Full Analysis
The Waterpik Cordless Advanced is the company's top cordless model, adding USB charging and a wider pressure range compared to the standard Cordless Plus. The USB charging cable eliminates the need for a proprietary wall adapter and makes the unit genuinely travel-practical — it charges from the same cable as most phones.
Water flossers reach below the gumline and between teeth more effectively than string floss for users with braces, bridges, implants, or tight contacts. At $79.99, the Cordless Advanced costs roughly $20-30 more than the Cordless Plus, with the premium going toward USB charging and the slightly higher maximum pressure setting. For anyone committed to daily water flossing, the cordless format removes the friction of being tethered to a sink outlet with a corded base unit. Replacement tips cost around $10-15 for a multi-pack annually and are the main recurring ownership cost.
Also Excellent
Best for: Mid-range buyers: Anyone looking to improve their daily oral hygiene routine beyond what a manual toothbrush achieves
“”
See Today’s Price →
Watch out for
- Replacement brush heads add ongoing cost to ownership versus disposable manual brushes
- Battery or charging requirements mean it cannot be used when power is unavailable
Skip if: Travelers who need a disposable or ultra-compact option and cannot bring charging cables
See Today’s Price →
Worth Considering
Best for: Mid-range buyers: Anyone looking to improve their daily oral hygiene routine beyond what a manual toothbrush achieves
“”
See Today’s Price →
Watch out for
- Replacement brush heads add ongoing cost to ownership versus disposable manual brushes
- Battery or charging requirements mean it cannot be used when power is unavailable
Skip if: Travelers who need a disposable or ultra-compact option and cannot bring charging cables
See Today’s Price →
Frequently Asked Questions
Is Waterpik as effective as traditional flossing?
Clinical studies show water flossers are significantly better than string floss for reducing gingivitis and bleeding gums in the short term. The American Dental Association accepts water flossers as an effective interdental cleaning tool. For patients with braces, implants, or bridges, water flossers often outperform string floss for cleaning hard-to-reach areas.
What is the best Waterpik pressure setting to start with?
Start at the lowest setting (1-2 on the Aquarius) and increase gradually over 1-2 weeks as your gums adjust. Starting too high causes gum pain and bleeding. Most users end up between settings 4-7 for daily maintenance, with higher settings for orthodontic or periodontic tips that need more pressure.
How long does a Waterpik reservoir last?
The Aquarius 22-oz reservoir provides approximately 90 seconds of continuous use — enough for a full-mouth session. The Cordless Select 7-oz reservoir provides 45 seconds, typically requiring one refill. Use warm water for comfort; the reservoir holds temperature for the duration of the session.
Can I put mouthwash in a Waterpik?
Waterpik recommends water only for most models. Adding mouthwash can damage internal components and void the warranty. If you want to incorporate mouthwash, rinse with it separately. Some models specify they are compatible with diluted mouthwash — check your model's manual before adding anything other than water.
How often should I replace Waterpik tips?
Waterpik recommends replacing tips every 3-6 months with regular use. Signs of replacement time include fraying of the rubber seal, visible wear on the jet tip, or reduced water pressure despite a full reservoir. Replacement tip packs are available for all Waterpik models.
How We Analyze Products
We analyze Amazon review data — often thousands of reviews per product — to surface patterns
that individual buyers miss. Our process aggregates star ratings, review counts, and buyer
sentiment at scale, identifying which strengths and weaknesses appear consistently across
the largest review samples available.
Each product earned its placement through data: total review volume, average rating, and the
specific praise and complaints that repeat most often across buyers. No manufacturer paid for
placement on this page. Products appear here because buyers endorsed them at scale, not
because a company asked us to feature them.
We use AI to summarize review sentiment — not to fabricate opinions, but to condense what
thousands of buyers actually wrote into a readable format. The pros and cons you see reflect
the most common themes found in verified purchaser reviews, paraphrased for clarity. We do not
claim to have accessed Reddit, YouTube, or specific publications in generating these summaries.
Prices shown reflect Amazon pricing at the time this page was last generated. Click
“See Today’s Price” to get the current live price on Amazon.
Read our full methodology →
Affiliate disclosure: As an Amazon Associate, I earn from qualifying purchases.
When you buy through our links, we may earn a small commission at no extra cost to you.
This helps us keep the reviews free and the data updated. Our recommendations are based on data, not who pays us.
Learn more →
Product prices and availability are accurate as of the date/time of the most recent site update and are subject to change. Any price and availability information displayed on Amazon.com at the time of purchase will apply to the purchase of the product. Certain content that appears on this site comes from Amazon. This content is provided “as is” and is subject to change or removal at any time.