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Waterpik Sonic Fusion 2.0 Review: Are There Better Alternatives?

Natalie Asmussen
Natalie Asmussen
Amanda Dexter
Amanda Dexter
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Are you looking for an unbiased Waterpik Sonic Fusion review? Waterpik is well known for its extensive range of water flossers, but this one is a little different. The Sonic Fusion 2.0 is an electric toothbrush and a water flosser in one.

There are not many products that can directly compare to this flossing hybrid, so you may be wondering if it really works or is it just a gimmick?

Read our review to better understand the pros and cons of this flossing toothbrush and whether it's worth the money. We'll also answer the following questions:

  • What is the Waterpik Sonic Fusion 2.0?
  • How does it work?
  • What are Waterpik Sonic Fusion reviewers saying?
  • How do alternatives compare?

We hope this article provides you with all the information you need to help you decide if this is the right water flosser and toothbrush for you.

What is the Waterpik Sonic Fusion 2.0 flossing toothbrush?

waterpik sonic fusion 2.0
Waterpik Sonic Fusion 2.0

The Sonic-Fusion 2.0 is Waterpik's second-generation flossing toothbrush. It combines the functions of an ultrasonic toothbrush and a water flosser into a single device.

The Waterpik Sonic Fusion looks similar to other electric toothbrushes on the market today. The main distinction is that the handle and brush head also serves as the water flosser's handle and nozzle. So rather than having two separate devices, water is blasted through the brush head instead of a nozzle.

Brushing your teeth with an electric toothbrush might leave up to 40% of the tooth surfaces unbrushed. Flossing with string floss or interdental brushes can clean those harder to reach areas between our teeth where plaque, germs, and other contaminants may accumulate and cause serious oral health problems.

Waterpik is well-known for its water flossers, which are a contemporary alternative to string floss or interdental brushes if you like something different. Some studies even say that water flossers are more effective at removing plaque and debris than regular string floss.

But, while it seems that a lot of people remember to brush their teeth twice a day, flossing is another matter. Many people forget to floss or simply don't want to deal with the hassle even though it's an important part of a good oral hygiene routine.

Water flossers can make flossing less of a frustrating task because they are generally easier to use and require less dexterity. So if you're already using your hybrid flosser and toothbrush, it's just a simple step to use the flossing action after you brush, or even try it at the same time!

The following video shows what the Waterpik Sonic-Fusion 2.0 looks like and summarises how it works:

How to use the Waterpik Sonic Fusion toothbrush

To use the Sonic-Fusion 2.0, there are a few important steps that are clearly illustrated in the video below.

If you wish to brush and floss your teeth individually follow these steps:

  1. Fill the water tank or reservoir halfway with lukewarm water.
  2. Connect the hose to the toothbrush handle's base or leave it detached while you brush–it's up to you. The hose only needs to be attached if you are using the flossing action.
  3. Activate the brush button. Brush your teeth twice a day for 2 minutes. Use the built-in timer for guidance on how long to brush your teeth.
  4. Connect the hose to the toothbrush handle base before flossing.
  5. With the rotatable dial on the left of the device, adjust the pressure for water flossing depending on your preferences.
  6. Place the brush head in your mouth while leaning over the washbasin and allow the water to flow from your mouth into the washbowl.
  7. Start flossing your teeth by pressing the floss button. Water should be aimed towards the gum line at a 90-degree angle. Follow the gumline and pause between teeth for a few moments. If necessary, adjust the pressure by twisting the dial.
  8. When finished, push the floss button again to turn off the device.

Waterpik Sonic-Fusion 2.0 price

The Waterpik Sonic-Fusion 2.0 is quite reasonably priced for being both a water flosser and an electric toothbrush. However, for the same price, you could get two separate mid-range devices. The Sonic-Fusion 2.0 is good value for money if you are not concerned with having the most efficient electric toothbrush or water flosser on the market.

Waterpik Sonic Fusion 2.0 review

Watch the video review to understand the upsides and downsides of this product.

The reviewer in this video claims that he has been putting the sonic Waterpik toothbrush to the test for a few weeks. He shares the advantages and disadvantages he found when using a flossing toothbrush combination.

His opinion is that Waterpik makes fantastic products and that the idea of a flossing toothbrush is a great idea. However, he does find the Waterpik complete care system better, which includes a separate toothbrush and water flosser.

Overall he thinks that investing in a separate ultrasonic toothbrush and water flosser might be a better option than combining the two.

waterpik sonic
Waterpik Sonic Fusion replacement heads

The reviewer goes on to explain how to use the flossing toothbrush. He says that when it comes to flossing your teeth, you fill the reservoir on the device. There are ten pressure settings available, which can be controlled by the dial on the side.

You have a couple of buttons to switch between brushing and flossing modes, and then you move the toothbrush around your mouth to direct it to the area of your mouth where you want to aim that water floss jet.

According to the reviewer, one of the main disadvantages of the Waterpik electric toothbrush is that the brush head is a lot bigger and more difficult to aim between teeth and along the gumline than a traditional water flosser nozzle. One of the advantages of a classic water flosser is that it has separate jet tips, which gives you the feeling that you have better control.

He also notes that when compared to Oral B, Sonicare, and other brands, the replacement brush heads are more expensive. This increases the total cost of owning this sonic fusion flossing toothbrush which is something to think about.

Let's take a quick look at the advantages and disadvantages of the Waterpik toothbrush.

Advantages and Disadvantages


  • Water is sprayed through the toothbrush head rather than through traditional water flosser tips making the spray less accurate
  • It can feel awkward to combine both brushing and flossing at the same time
  • The attached hose can make the handheld device feel bulky
  • Lacks rubber on the handle for grip compared with other models
  • The battery life is quite short at only 7 days
  • It is quite noisy and makes a high-pitched whiney sound when used
  • The charger is bulky so not ideal for travel
  • Only one setting for the electric toothbrush
waterpik sonic fusion uk
Is the Waterpik Sonic-Fusion the best flossing toothbrush


  • It is an innovative hybrid between a toothbrush and a flosser which is a positive depending on your wants and needs
  • The toothbrush performs well and does a good job of cleaning the teeth. It functions similarly to a typical sonic cleaner, such as the Phillips Sonicare electric toothbrush
  • Built-in timer
  • Travel case included
  • The handle feels nice to hold in your hand and looks good
  • Brush heads may be removed and replaced
  • The power ranges from 100 to 240 volts, you won't need a voltage converter if you travel with it; all you'll need is a plug adapter
  • 3-year warranty from Waterpik

Waterpik Sonic Fusion reviews on Amazon

Very effective, pretty loud.

Surprisingly effective. Pretty loud, too. Version 2 is supposed to be quieter than the previous model. If that's true then I'm glad I skipped that one! Regardless, it performs as advertised and is effective if being used as a toothbrush, a water flosser, or both in tandem. It has a built-in timer for brushing, and I find myself brushing & flossing longer than I used to. At this time only brush heads are available. Would be better if different types of floss/brush heads were able to be used with it.


Somewhat complex to use.

The combination brush/floss function does not work. The pulsating water washes away the toothpaste instantly. Also, the curled hose isn't long enough for comfortable use. Recommend buying the WaterPik floss only product and save some money. Brush by some other method.

George O.

A Little Difficult to Use

I like the idea of an all-in-one unit but the WaterPik feature is a bit hard to use. The cord doesn't move very well and it's awkward and water tends to get everywhere. In the end, having two separate units is probably better but for the cost and having the unit take up less counter space this is nice.

Jen J.

Waterpik Sonic-Fusion 2.0 vs version 1.0

In comparison to Waterpik Sonic Fusion version 1.0, there have been some improvements made with the newer version 2.0. These improvements in functionality and performance include these added features:

  • Reduced brushing noise
  • 2x bristle tip speed
  • 2 brushing speeds (high and low)
  • Better battery (lithium-ion)
  • Flossing power increased by 30%
waterpik sonic fusion reviews
Oclean W10 water flosser

Recommended alternatives to the Waterpik Sonic Fusion

Even though the Waterpik Sonic toothbrush has improved, we think you might be better off purchasing a water flosser and an electric toothbrush separately. That way you can get the best of both worlds: a water flosser with jet tips that provides better functionality, and a superior electric toothbrush with perhaps more high-end features, such as longer battery life and cheaper brush heads.

As a better and cheaper alternative, we recommend Oclean's W10 water flosser combined with their X Pro Elite sonic toothbrush. That's an excellent combination, and it'll probably save you money over purchasing Waterpik Sonic Fusion 2.0 alone.

In fact, any of Oclean's range of sonic toothbrushes would make a good combination with their W10 water flosser; you can read about them here. It's a pity you have to spend extra to merge two products into one that, in our opinion, doesn't accomplish the job as well as two independent ones.

If you are wanting to try an alternative Waterpik water flosser, we recommend the Waterpik Cordless Advanced. It has all the great features of a high-end water flosser added to the fact that it is compact and portable making it perfect for travel.


Combining a toothbrush and water flosser into one device is an innovative idea. Brushing and flossing your teeth are two essential components of any effective oral hygiene practice.

waterpik electric toothbrush
Try combining Oclean's X Pro Elite with their W10 Water Flosser

Flossing and brushing twice a day are recommended for everyone. The issue is that far too many people do not floss. Interdental brushes and string floss are uncomfortable, unpleasant, and time-consuming for many people. 

The Waterpik Sonic Fusion 2.0 seems to make the procedure a little easier. It is a product that blends two separate items into one. As a result, the chances of completing both activities and improving your overall dental hygiene are much better.

The toothbrush works fine, as does the water flosser function to some extent. It has a few limitations since the water comes through the brush head and not through a jet tip like with a traditional water flosser. The noise it makes is quite loud, and the water flosser lacks functionality.

Compared to other electric toothbrushes on the market today, the battery life isn't as impressive. And, when you compare the pricing of the Waterpik Sonic Fusion 2.0 to other options on the market, you'll see that it's actually more costly than buying two separate devices.

The following table summarises the pros and cons discussed throughout the article:



  • Combination of a toothbrush and a water flosser

  • Attractive and stylish design

  • 10 different pressure settings

  • Brushing timer and pacer

  • 3-year warranty

  • Lacks functionality and performance

  • Short battery life

  • Not easily portable–the charging device is built-in with the reservoir

  • Expensive compared with alternatives

Although the idea is fantastic and some of the problems with version 1.0 have been addressed, we believe you would be better off purchasing an ultrasonic toothbrush and water flosser separately. For less money, you could get two devices with better features and advantages.

Our top recommendations include combining the Oclean W10 Water Flosser with the Oclean X Pro Elite sonic toothbrush.


Is the Waterpik Sonic-Fusion 2.0 flossing toothbrush any good?

The Waterpik Sonic-Fusion 2.0 is a great product, especially for those who are looking for a 2-in-1 solution. It comes with a lot of great features, but there are also some disadvantages to having a combination unit.

Keep in mind that the flosser might not have the same performance as one with jet tips like the Waterpik Cordless Advanced. The battery life is not particularly long in comparison either, so you might need another solution if you are planning to go on holiday for longer than a week.

Cost is another factor to consider. The Waterpik Sonic-Fusion 2.0 costs more than buying two separate devices with better performance and functionality.

Should you use a water flosser before or after brushing your teeth?

We suggest using the water flosser before brushing with an electric or ultrasonic toothbrush. Brushing your teeth with toothpaste is much more effective when there are no food particles getting in the way.

Waterpik Sonic Fusion 2.0 Review: Are There Better Alternatives?
4.5 (90%) 2 vote[s]


British Dental Journal: Forget string floss, use water. Consulted 30th July 2020.