A Buyers Guide to the Best Cordless Water Flosser: Top 5 Reviews

Cordless water flossers have been invented due to the human quest for convenience. We are always on the hunt for a product that is going to make our life a little bit easier. That is exactly what a portable water flosser does; makes it easier for us to keep up with oral hygiene during travel or simply relieves the clutter and mess of a cord that is always managing to get tangled.

This article's purpose to make it simple for consumers to avoid an impulse purchase on a low quality cordless oral irrigator and instead make an informed purchase on one that will bring overall satisfaction. Here is an informative buying guide and our best cordless water flosser reviews.

Portable Water Flosser Comparison


# of Tips Included

Water Capacity

Global Voltage

Warranty (Years)


Poseidon Oral Irrigator


  30 seconds



Waterpik Cordless


  45 seconds



ToiletTree Pro


60 to 80 seconds



Panasonic Water Flosser


5.5 oz



H2Ofloss Oral Irrigator


10 oz



What is a Cordless Water Flosser?

A cordless oral irrigator utilizes water pressure to clean between the teeth and gums. It is much like a standard water flosser, only it does not require a cord. It is rechargeable and portable. Portable oral irrigators are perfect for travel and bathrooms with a small amount of counter space.

In an evaluation comparing the performance of a water flosser vs. string floss to remove plaque, the water flosser was 29% more effective than string floss for overall plaque removal.

How does a Cordless Oral Irrigator Work?

A cordless H2O flosser has several different water pressure settings, all clinically proven to be safe. It is recommended to begin at the lowest setting and work your way up over time. The pressure of the water is enough to break down and remove the plaque or food stuck in the teeth.

The water is held in a reservoir, which is then emitted through the handheld tip. Make sure the reservoir is filled with lukewarm water. Simply place the tip in your mouth after choosing a pressure setting. Slightly close lips to avoid splashing. Work your way around the teeth and let the flosser do the rest.

The cordless models typically include a charging unit for the battery-operated device. It is important not to let the battery completely drain.

If you are unsure of how to use a cordless oral irrigator, check out this video:

Pros & Cons of a Portable Water Flosser



  • Compared to a standard water flosser, the cordless version has a more compact, lightweight design and the hassle of a tangled cord is eliminated.
  • It takes up less space in the bathroom. It's portable design makes it a perfect choice for those who plan on travelling.
  • It's quicker and easier than traditional dental floss. It has been clinically proven to be more effective than regular floss at reducing gingivitis, bleeding of gums, and removal of plaque.
  • Great for people with implants, braces and orthodontic appliances. It can be very difficult for people with braces to use dental floss around the wires of their braces. The irrigator's orthodontic tip makes it easier to get to those hard-to-reach areas.
  • Cordless water flossers draw power from a battery. The drawback to that is it needs to be charged in order to use it. It should be charged at least once per month if not in use.
  • Due to it's compact design, the water reservoir on a cordless oral irrigator is not as large as that of a countertop model. It will need to be refilled more often.

Choosing a Cordless Oral Irrigator - Buying Guide

Here are some important factors to take into consideration when choosing a cordless water flosser:


  • Where do you plan on travelling with your oral irrigator? If your plan is to go abroad to travel, and you want to bring the water flosser along, it is important to find one that has a charger with universal voltage or bring back-up batteries if required.
  • Take a look at our chart here to see which of our top 5 cordless water flossers have universal/global voltage.
  • This means the device's charger can accept both 110-120V and 220-240V. If you do not have universal voltage, it will either not work properly… or it might burn out. However, if your plan is to travel within the country then global voltage is not necessary.
  • Some H2O flossers come with a bonus travel case for ease of packing.


  • It is important to make sure the oral irrigator your purchase has at least a one year warranty. You never know what could go wrong and one year gives the consumer enough usage time to make sure it doesn't have any problems right out of the factory.
  • The last thing you want to be stuck with is a dud that has no warranty.


  • Portable oral irrigators usually come with 1 or more different kinds of tips such as regular, orthodontic, tongue scraper etc.
  • If the consumer is looking for a specific tip, they will want to make sure it comes with it so that no extra purchases are needed.

Look at reviews:

  • The best way to make a good purchase is to see what other customers are saying about the models you are considering.
  • Take a look at the star rating.


  • Learn about the various features included in certain models besides tips and warranty. They include water pressure settings, massage mode and timers to name a few.

Portable Water Flosser Reviews: Top 5


With the Poseidon oral irrigator, you can forget about the mess of cords. It comes with an inductive charging cradle and lithium ion batteries, which makes it incredibly easy to keep fully charged and ready to use. Another bonus is the universal voltage which makes it great for travelling.

It features 3 operating modes: normal, soft and pulse. The fact that it's also BPA-free, makes it an even more attractive choice when it comes to H2O flossers. It is hands down the best travel water flosser out of our top 5.


  • Easy and convenient to use.


  • No back-up power source.
  • Not as many features or settings as Waterpik cordless


A water flosser without the cords and the bulk. It's the best cordless waterpik for the job. Equipped with 2 classic jet tips, 1 plaque seeker tip, 1 orthodontic tip, and a nano sonic electric toothbrush. When it comes to features and extras, Waterpik seems to pull through ahead of the rest.

It's backed with a 2 year warranty for peace of mind. The water capacity lasts for 45 seconds, which is a high number when it comes to cordless, compact water flossers. Dual pressure control on the handle.


  • Convenient for travel or small bathrooms.
  • Comes with a sonic toothbrush.


  • Does not have global voltage.


Another excellent water flosser by Toilet Tree Products is the updated professional oral irrigator. This oral irrigator was designed in response to customer feedback.

The power source has been upgraded to lithium ion batteries for more power and longer battery life. Another common complaint was the difficulty to fill the water reservoir. This has now been taken care of with a wider opening that is easy to pop open.

On top of these upgrades, the motor was redesigned to make it much quieter and it's now easier to release the tips with a release button. All of these upgrades show that the ToiletTree company cares about what their customers think and are willing to listen and make improvements. Very admirable.


  • Upgraded version designed to address the problems that customers were dealing with
  • BPA Free and FDA Approved
  • Comes with 2 color-coded tips for multiple users


  • Does not have a back-up power source


The Panasonic dental water flosser is a portable H2O flosser that is collapsible to approximately half its size, which makes it very easy to quickly pack into your bags during travel.

It has 2 convenient speed settings, normal and low. The lower pressure setting is ideal for those with sensitive gums or for children. In normal mode, you can floss your teeth at a powerful 1400 pulses per minute for a thorough cleaning.


  • The Panasonic water flosser is 100% water proof. Makes it easy to wash.
  • The tank is very easy to fill and holds enough water to give you a decent amount of flossing time.


  • The 2 AA batteries that it runs on are not included


The H20Floss Oral Irrigator boasts one of the highest pressure ranges among all portable oral irrigators. It comes with 6 water pressure settings from 10 to 110 PSI so it is great for everyone, from kids to adults and those with sensitive gums, crowns, braces, veneers and implants.

It's compact design and carrying case makes it great for travel. Not only does it have a high amount of pressure settings, but it comes with a variety of tips including 2 jet tip,1 orthodontic tip,1 periodontal tip, and 1 tongue cleaner tip. The H20Floss water flosser is powered by rechargeable batteries.


  • Comes with a premium carrying case
  • Large water reservoir when it comes to portable H2O flossers


  • Some find the pressure to be too high

The Verdict

Convenience is what we are looking for, and convenience is what these oral irrigators provide. Consumers want it to be easy to keep up with their daily oral care routine while on the go.

We chose the above as our top 5 best portable water flossers on the market as they have everything you want in a travel device: a compact design, universal voltage, several pressure settings, a good warranty and great reviews. These are all very important factors when looking for a travel water flosser.

We agree that consumers would be happy to take any one of these top 5 oral irrigators on their next trip.

If you are looking for a standard countertop flosser instead, check out our top 5 water flosser reviews here.

Aurora Chelo

Aurora Chelo is a freelance writer and proud mother from New Jersey. She loves to write about anything health related, but oral health is her most passionate topic. Her free time is spent partaking in family activities and experimenting in the kitchen.

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