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Waterpik Complete Care WP-900 Review

Waterpik WP-900 Complete Care Review

Editor’s Note

The WP-900 has technically been replaced by Waterpik. You should consider the Complete Care 9.0 (view on Amazon) as a replacement.

Our Verdict

Wow, what a product.

The WP-900 Complete Care is a pretty fantastic solution.

Whilst there is room for improvement, I am splitting hairs and what you get here is quite simply brilliant for the price.


  • Large water tank
  • Choose between 10 different pressure settings
  • Various tips included for individual specific needs
  • Storage case included for tips
  • Sonic toothbrush included
  • Good value option


  • Takes up a fair amount of countertop space
  • Features of the toothbrush lacking compared to alternatives
Preview Product Rating Price
Waterpik Complete Care WP-900 Waterpik Complete Care WP-900 8,097 Reviews

The 3 BIG questions about the Complete Care WP-900

If you are short of time, the answers to the following 3 questions should let you know all you need to about the Waterpik Complete Care. If I have missed something, let me know in the comments.

If you want more detail, you can read the full Complete Care review further down the page.

1. Is there anything drastically wrong with this water flosser and toothbrush?


This complete care unit is a great example of an all in one package that ticks a lot of boxes of features you want and would like to have.

2. Which other complete care products should I consider?

The WP-900 is a great product, but it is being replaced with newer models.

They are similar in their function and features, boasting a refreshed design and slightly different specifications. The Complete Care 9.0 is a newer alternative to consider alongside the WP-900.

Waterpik Complete Care Water Flosser and Sonic Toothbrush, WP-900
Waterpik Complete Care 9.0 Sonic Electric Toothbrush with Water Flosser, CC-01 White, 11 Piece Set
Brush Name
Waterpik WP-900
Waterpik Complate Care 9.0
Customer Rating
Electric Teeth Rating
Price not available
Waterpik Complete Care Water Flosser and Sonic Toothbrush, WP-900
Brush Name
Waterpik WP-900
Customer Rating
Electric Teeth Rating
Price not available
Waterpik Complete Care 9.0 Sonic Electric Toothbrush with Water Flosser, CC-01 White, 11 Piece Set
Brush Name
Waterpik Complate Care 9.0
Customer Rating
Electric Teeth Rating

3. Where is the best place to buy the Waterpik Complete Care?

Sourcing the WP-900 is now quite difficult.

It has technically been replaced by Waterpik. You should consider the Complete Care 9.0 (view on Amazon) as a replacement.

Why should you listen to us?

Electric Teeth is an independent website with a mission to simplify dental health.

Our team is a mixture of consumers and dental professionals.

We strive to create honest, informative content, telling you the facts, good or bad.

We are not sponsored by big brands or healthcare companies. Our site is funded by affiliate revenue and ads, but we only recommend products that we have tested and truly believe to be worth your money.

Why not watch this short video to find out all about us?

And now for a bit more detail…

Whilst great oral healthcare can be achieved with a manual toothbrush and normal floss, there are many benefits from an electric toothbrush and a water flosser.

The WP-900 is for all intents and purpose is a bundle of these 2 products.

Although it is a totally new product, if you were to compare it is like buying the Waterpik Ultra water flosser and the Waterpik Sensonic Professional Plus electric toothbrush (SR-3000) which have a combined retail price of $150.

The WP-900 has a price of $100 or less.

A $50 saving for combining 2 products into one, without any loss of benefits.

It is a superior package that helps you achieve great teeth and gums without a budget busting price tag.

Read on for our detailed Waterpik Complete Care WP-900 review, or see our best Waterpik article for more buying advice.

How to use the Waterpik Complete Care

In the box with the WP-900 comes documentation that explains how to use it.

The following is an explanation as to how to use the water flossing part of this package as most know how to use the toothbrush.

The mains steps are as follows

Step 1: Fill the water tank/reservoir with lukewarm water (tank can be lifted out and replaced).

Step 2: Fit the appropriate nozzle to the handle of the flosser ensuring it has clipped into place.

Step 3: Adjust the pressure dial on the unit to your desired pressure level (can be adjusted later).  If it’s your first time using, turn down to a lower setting.

Step 4: Lean over the sink and place the tip of the flosser into your mouth. Close the lips enough to prevent splashing while still allowing water to flow from mouth into the sink.

Step 5: Turn the power button on the main unit to the right to switch the unit on.

Step 6: Aim water at the gumline at a 90 degree angle. Follow the gumline and pause briefly between teeth.

Step 7: Turn the power button on the main unit to the left to switch the unit off.

During the clean you can adjust the pressure, turn the nozzle and control water flow.

Turn the dial on the main unit to adjust pressure.

Press and holding the Blue button on the handle to pause the water flow.

Twist the top of the flosser handle to rotate the tip for finer control.

Here is a video to show you how it is done.

How to Use a Waterpik® Water Flosser

What’s in the box?

  • Waterpik Complete Care system
  • Premium hard sided toothbrush travel case
  • 2 x Classic Jet tips
  • 1 x Plaque Seeker tip
  • 1 x Orthodontic tip
  • 1 x Pik Pocket tip
  • 1 x Standard brush head
  • 1 x Compact brush head
Waterpik Complete Care WP-900 Review 1

Key Features

  • Removes 99.9% of plaque
  • Sonic toothbrush
  • Toothbrush travel case
  • Multiple tips
  • Tip storage
  • 10 pressure settings
  • 23oz/700ml tank
  • 2 year warranty

Pros & Cons

Here is a list of the pro’s and cons having used the Waterpik Complete Care Water Flosser and Sonic Toothbrush, WP-900.

The Positives

  • Large water tank – Floss for longer or multiple times between sessions thanks to a 700ml tank.
  • Pressure settings – 10 pressure settings to choose from.
  • Box contents – Nice number of tips included.
  • Tip storage – A lid to the unit acts as storage for the different tips.
  • Sonic toothbrush – Strong performing brush with 2 cleaning modes and a weeks battery life.
  • Price – Great value for money.

The Negatives

  • Size – A bit chunky.  Takes up work surface space which might be limited for some.
  • Messy – Whilst you can master a technique, the steps involved and the amount of water pushed into the mouth means this is not the most enjoyable or flattering experience, you need a sink and even then you can make a bit of a mess.
  • Features – Brush and flosser miss out on a few more premium features, like a pacer for the flosser and pressure sensor on the brush

Design, usability, clean & general use

As you might expect, out of the box, this unit is of a reasonable size and you will need some space on your bathroom countertop or shelf to accommodate this.

It is a bit clinical looking, it would look right at home in a dental practice, but the White and Blue color scheme is fairly inoffensive and will look ok in most homes.

It certainly isn’t as stylish as the Sonicare DiamondClean products.

Waterpik Complete Care WP-900 Review 2

As this is 2 products rolled into 1, I will first begin talking about the toothbrush.

For me, the toothbrush has a very practical look and feel to it.

It does look a little dated, but it works pretty well, so I can’t knock it.

On the front is a Silver colored power button sat inside an ovalish shaped piece of Blue rubber.

This sits in the upper third of the handle, whilst in the lower third is the battery status/charge icon.

Waterpik Complete Care WP-900 Review 3

Inside the brush handle is a Nickel Metal Hydride (NiMH) battery, that offers up on average a life of 7 days between charges.

That is based on 1 user, cleaning twice a day for 2 minutes each time.  Essentially 28 minutes of continuous running time.

The front mounted LED’s give the feedback on the battery charge.

The lights will be lit for approximately 10 seconds after use and after removal from the charging base.

3 Green LEDs means it is fully charged.

2 Green LEDs means 66% or less power remaining

1 Green LED means 33% or less power remaining and a charge is recommended

If the lower of the 3 LEDs is flashing rapidly, the brush will not turn on.   It is out of power and needs at least an hour on charge before it can be used.

Sit the brush back on the dock and ensure the power supply is connected to the unit for charging.

On the sides of the brush handle, wrapping in a slightly wavy formation to the front and rear is a piece of Blue rubber, this acts as a grip and keeps the brush firmly in hand.

The parts of the hande both front and rear that are not covered in grip are a smooth touch plastic that is White in color.

At the top of the brush is the brush head.

In the box comes 2 different heads, a standard and compact.

Waterpik Complete Care WP-900 Review 4

It is a case of picking which head is your preference.  Most will opt for the standard head, but the compact one can be useful for children, young adults or if you feel more comfortable brushing with it.

Roughly the size of a manual toothbrush head, they are not small and round like Oral-B heads.

They are interchangeable though, just swap them when desired..

Heads should be replaced every 3 months and can be purchased in packs of 3 as and when you need them.

The Sonic cleaning action delivered by the brush is actually pretty good and was better than I had expected and I cannot fault the cleaning experience.

When you power the brush on, it actually launches into 1 of 2 cleaning modes available on the brush.

That first mode is the slower, but press it again and the high speed mode will be activated and deliver a full 30,500 movements to the brush head.

As the brush is powered on a 2 minute timer will kick in.

Waterpik Complete Care WP-900 Review 5

This is designed to help you brush for the right amount of time, the time dentists recommend.

In addition, the Sensonic Professional Plus also activates the 30 second pacer.

As 30 second intervals, the brush will create a short pause in the cleaning action to remind you to move to the next quadrant of your mouth.

At the end of the 2 minutes, the brush will automatically turn off.

As far as essential features go, this brush has all those tick boxes covered and I am pretty impressed.

It would be nice to have a pressure sensor, that would alert you when you are applying too much force, but I am bit a bit picky here.

In addition to the core brush features, a hard plastic travel case is included.  This will hold the brush handle and up to 2 brush heads, protecting them from damage when in transit and stopping accidental activation.

Waterpik Complete Care WP-900 Review 6

Back to the flossing element of the unit then.

Wired into the base of the unit is a power cable that is compatible with 120VAC/60Hz outlets, for use In North America.

Power is needed each time you want to use the flosser, it does not have a battery built-in.

Waterpik Complete Care WP-900 Review 7

That power is needed if you want to recharge the toothbrush, but it does not need always be connected to power.

A combined unit like this saves taking up 2 separate sockets in the bathroom as would be the case if you purchased the electric toothbrush and flosser separately.

The base of the flosser contains the pump that pulls the water from the user removable tank that sits above it.

The tank has a capacity of 23oz/700ml, which gives 90 seconds or so of flossing time.

On top of the tank is a lid, that stops anything, notably dust and debris falling into the water in the tank.

Waterpik Complete Care WP-900 Review 8

Whilst the tank takes up about ⅔ of the unit, to the left hand side the remaining ⅓ is taken up with a unit that the tips can be stored in.

This is handy as it keeps them all in one place and within easy reach.

On the front of the unit is a power and pressure dial.

The power dial sits on top and is the smaller of the 2.

Both are a pale Blue in color.

1 click to the right turns the unit on, whilst a click back to the left wll turn the unit off.

The pressure dial has 10 pressure settings that vary from 10 to 100 PSI.

Waterpik Complete Care WP-900 Review 9

Move the dial, left or right to find the pressure that is most appropriate for you.

I typically found the more powerful side of the scale 7 or 8 was my preference.

Sitting slightly proud to the right of the unit, is the flosser handle, with a length of coiled cable neatly stowed away in the body of the WP-900.

Just pull the hose out to extend the reach.  When extended the hose and handle combined has a length of about 3 feet.

This allows a little distance between the unit and the sink you use it over.

The elliptical design of the handle fits comfortably in the hand and the large, pale Blue button on the front is the key to controlling the water flow.

Waterpik Complete Care WP-900 Review 10

From the moment the power button is flicked to the on position this thing is spouting out water.

Press and hold the Blue button on the handle to stop the flow and then release to allow it to restart.

The tip can be rotated a full 360 degrees thanks to the top of the handle rotating.

Ridges around the top make it easy to grip onto to rotate, although it is not all that easy mid floss in my opinion, it can be a bit fiddly.

It seems too much hassle to turn the unit off and adjust, so you need to press the pause button and do it.

The length of the tips and the varying angle of attack, certainly meant that I could reach more areas of the mouth more easily than with traditional floss.

Waterpik Complete Care WP-900 Review 11

The clean felt more invigorating thanks to the adjustable pressure settings.

Waterpik manufacture 6 different styles of tips.

  • Classic Jet Tip (JT-100E) – For general use offering twice as effective results than string.
  • Toothbrush Tip (TB-100E) – For brushing and flossing at the same time.
  • Plaque Seeker Tip (PS-100E) – Ideal for those with implants, crowns, bridges or veneers targeting plaque in hard to reach areas.
  • Orthodontic Tip (OD-100E) – Great for those with braces offering up to 3 times more effectiveness than traditional floss.
  • Pik Pocket Tip (PP-100E) – Delivering medicament and rinsing deep below the gumline those with periodontal pockets and fucations benefit most here.
  • Tongue Cleaner Tip (TC-100E) – Freshens the breath by removing bacteria from the tongue’s surface.

The WP-900 comes with 5 tips in total, 4 of which are different styles.

  • 2 x Classic Jet tips
  • 1 x Plaque Seeker tip
  • 1 x Orthodontic tip
  • 1 x Pik Pocket tip
Waterpik Complete Care WP-900 Review 12

The toothbrush tip, for obvious reasons, is not included.  Nor is the Tongue cleaner.

For the vast majority, the classic tips are the best option to use.

The different tips clip into place on top of the handle of the flosser.

A button on the rear needs to be pressed to unclip/eject each of the different tips.

The number of tips provided and the storage unit, make it ideal to share this flosser with other users in the same house, just change the tip each time.

Waterpik Complete Care WP-900 Review 13

Tips, like a toothbrush need changing every so often.

If using the Classic Jet Tip, this can be used for up to 6 months before requiring replacement, whilst all others should be replaced after 3 months use.

Once the desired tip is connected and the tank filled you can begin flossing.

When you fill the tank, the idea is you fill it with water, this can be cold or lukewarm if you prefer.

The advised is the warm water. You could add a dash of mouthwash too if you wanted an extra burst of freshness.

If you have never used a water flosser before, you will likely make a mess the first few times you use it.

It takes a bit of practice to get used to how this works.  Don’t worry you are not alone here.

Waterpik Complete Care WP-900 Review 14

When running the machine does produce quite a bit of noise due to the pump inside.  It is a bit noisier than an electric toothbrush. If you tend to floss in the middle of the night, make sure you shut the bathroom door to block the sound.

A full tank which holds 23oz will allow for about 90 seconds of flossing time.

Once you have perfected your approach, you can get 2 flossing sessions from a full tank, 45 seconds each.

Waterpik Complete Care WP-900 Review 15

For the first few weeks, you may need to refill and play around until you find your groove.

Sadly, unlike some models there are no timers or pacers to help you floss evenly, you need to perfect that technique yourself, not a big issue, but it would be nice to have this.

Whether your choice for interdental cleaning is dental floss, interdental brushes or a water flossing.  Failing to clean properly between the teeth and gums can lead to a buildup of bacteria and plaque that in turn can result in gum disease.

The pressure and flow of water that this flosser offers, reaches bacteria deep between teeth and below the gumline where brushing and traditional flossing can’t always reach.  The flow of water does too massage and stimulate the gums to improve circulation and keep your gums strong and healthy.

Waterpik have ensured that their products are backed up by clinical evidence.  They have plenty on their clinical research page but one in particular stands of for me.

A study by Guror in 2009 found just a 3 second treatment can remove 99.9% of plaque biofilm.

Waterpik Complete Care WP-900 Review 16

The Waterpik Complete Care provides an all round package that takes care of your toothbrushing and interdental cleaning needs.

There is certainly a convenience and ease that water flossing offers in comparison to string floss.  The fingers and thumb approach can feel more awkward, harsh and just a hassle.

What might appear a complex and expensive package, it really is not.  Aside from buying separate items few alternatives to this setup exist.

Summary of design, usability, clean & general use

  • Countertop unit
  • Combines electric toothbrush and water flosser
  • US 2 pin power supply
  • The water tank holds 23oz (700 ml)
  • Approximately 90 seconds of usage time
  • 5 tips provided
  • Storage unit for the tips
  • 360 degree adjustable nozzle
  • 10 different pressure settings
  • Efficient cleaning with clinical evidence
  • 2 minute timer with automatic power off built into toothbrush
  • Toothbrush has a quadpacer
  • 2 cleaning modes
  • Good clean
  • Hard plastic travel case for protection of brush and heads in transit.

Price & where to buy

I have included links to buying options here at the start of the review.

In the section below, I discuss the price more generally and in relation to similar products.

There has to be some sort of cost saving for rolling 2 products into 1, but sometimes you can also pay extra for this convenience.

Thankfully a saving is what you get here.

If you looked exclusively at Waterpik products, the flosser and toothbrush would have a combined cost of $150.

The SR-3000 toothbrush costs $90 and the Ultra water flosser $60.

Other brands such as Sonicare and Oral-B do not produce an equivalent water flosser, but it is fair to say that an equivalent brush to the Sensonic Professional Plus, would cost anywhere between $40-80.  Waterpik’s toothbrush is perhaps a fraction overpriced given the competition.

The suggested retail price for the WP-900 Complete Care solution is $99.99.

That is at least a $50 saving.  That is a win in my book.

Waterpik Complete Care WP-900 Review 17

However, things get a little better as this can be purchased for just under $80.

Of course, prices are subject to change, but there is the potential for another $20 of saving there.

We’ve listed a live price comparison for the WP-900 here.

A typical calculation that we like to do is price the product over 3 years to work out an approximate ownership cost.

This is a little trickier than normal, because we are talking about a solution that rolls 2 products into 1, but, it is still worth doing.

To do this, consideration needs to be made for replacement brush heads and tips for the flosser.

Over the course of 3 years of ownership, presuming you used just the Classic Jet tip, you would need to buy 4 of these, in addition to those that came in the box.

At $10 for a pack of 2, they work out at $5 each.

When it comes to brush heads, most will use the standard sized brush head.

A pack of 3 costs $15-20, so lets say $6.50 each.

Over 3 years, 12 will be required.  1 comes supplied in the box.

Waterpik Complete Care WP-900 Review 18

Therefore take the $100 purchase price, add the $20 for jet tips and $71.50 for the brush heads and you have a total cost of $191.50 or $0.17 per day.

Pick the unit up for the $80 and there is a further $20 of savings to be had.

The cost then drops to $171.50 or $0.16 per day.

Whilst it is of course, subject to change as a rough guide an electric toothbrush will cost about 10-12 cents per day, whilst the flosser 6-8.  This means a daily cost of somewhere between 16 and 20 cents.

Therefore all things considered there is some slight savings to be had by buying this all in one package, not taking into account the consideration of convenience cost.

Please note that all prices quoted are approximates and will vary based on location, supplier and time of purchase.  These figures were correct at the time of writing and should not be relied upon as hard fact, but used as a guide during your decision process.

Summary of price & where to buy

  • We have listed a live price comparison here
  • Recommended retail price of $99.99
  • Selling between $80-100
  • Replacement tips work out at about $5 each
  • Replacement brush heads work out at about $6.5 each
  • Daily cost as low as $0.16 per day over 3 years
  • Similarly priced if not cheaper than buying separate items

Reliability & long term use

When we test products here at Electric Teeth we try to look for possible issues that may occur during years of ownership and use our experience to look for possible signs of weakness.

We do not perform any stress or durability testing.

From our hands-on time with this unit there are no major concerns.

Waterpik Complete Care WP-900 Review 19

It is possible over extended periods of use, the battery in the toothbrush handle can fail from repeated charging and the hose between the flosser and the handle can become brittle with repeated stretch and coiling.

The chances of you experiencing this are slim.

If you were to take any preventative measures, it would be to disconnect the unit form the power when not in use, or take the brush off the charging stand, so it is not always being replenished.

Peace of mind comes in the form of the 24 month (2 year warranty) that Waterpik offer.

This means that should something go wrong.  Providing it is not as a result of user damage, it should be covered under warranty and be repaired or replaced free of charge.

Waterpik Complete Care WP-900 Review 20


Wow, what a product.

The WP-900 Complete Care is a pretty fantastic solution.

Whilst there is room for improvement, I am splitting hairs and what you get here is quite simply brilliant for the price.

Waterpik have pretty much delivered all you could want and ask for, including a travel case for the toothbrush.

A large tank on the water flosser gives plenty of flossing time, even multiple flossing sessions between refills.

A number of tips are included and there is space to store them too.

The toothbrush brush performs well with different speed settings, built-in timer and pacer.  It gives the likes of Sonicare and Oral-B a run for their money.

If you like the idea of the benefits this brings and the convenience of just 1 purchase, then you should just go out and get this.

Waterpik Complete Care Water Flosser and Sonic Toothbrush, WP-900
Waterpik Complete Care 9.0 Sonic Electric Toothbrush with Water Flosser, CC-01 White, 11 Piece Set
Brush Name
Waterpik WP-900
Waterpik Complate Care 9.0
Customer Rating
Electric Teeth Rating
Price not available
Waterpik Complete Care Water Flosser and Sonic Toothbrush, WP-900
Brush Name
Waterpik WP-900
Customer Rating
Electric Teeth Rating
Price not available
Waterpik Complete Care 9.0 Sonic Electric Toothbrush with Water Flosser, CC-01 White, 11 Piece Set
Brush Name
Waterpik Complate Care 9.0
Customer Rating
Electric Teeth Rating

Electric Teeth Rating

Electric Teeth 5 Star Rating

Size Guide

This is the size of the main unit.

  • Height (with tip) – 10.60 Inches (26.29 Cm)
  • Width –  7.70 Inches (19.55 Cm)
  • Depth – 5.00 Inches (12.70 Cm)
  • Weight – 2.45 Lbs (1.110 Kg)

All are approximates


  • How long does the battery in the toothbrush last?
    • It will last approximately 7 days based on 2 cleans per day of 2 minutes in length.
  • How often do the nozzles need replacing?
    • Nozzles should be replaced every 6 months if using the classic or tongue cleaner.  All others should be replaced every 3 months.
  • Can I use mouthwash in the Waterpik?
    • You could, but it would be expensive and wasteful.  Best adding a dash into the water used in the reservoir for a burst of freshness.
  • How much water or mouthwash does it hold?
    • Approx 23oz/700 ml which will last for approximately 90 seconds.
  • My gums bleed when I use cordless flosser. Is that normal?
    • Bleeding gums may be a sign of infection and a little bleeding can be normal when starting a new oral care routine, as you may be cleaning in areas not previously reached. However, if bleeding is excessive or does not stop within a few days of regular use, consult a dental professional.

Your Opinions

Do you own or have you used the Waterpik Complete Care unit?

Are there certain features that you really like or dislike?

Let us know what you think about it, and let others who may well be considering purchasing one know your opinions before they do.

About Jon Love

Jon is a leading voice on electric toothbrushes and has been quoted by mainstream media publications for his opinions and expertise.

Having handled & tested hundreds of products there really is very little he does not know about them.

Passionate about business and helping others, Jon has been involved in various online enterprises since the early 2000s.

After spending 12 years in consumer technology, it was in 2014 that he focused his attention on dental health, having experienced first-hand the challenge of choosing a new toothbrush.

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Leave a comment or question

6 thoughts on “Waterpik Complete Care WP-900 Review”

  1. After about a year, the brush does not fully recharge anymore.
    When showing three green lights, like it is fully charged overnight, it only lasts 3 out of 4 cycles, and it gets discharged faster every day after being charged.
    Unfortunately, the rechargeable battery cannot be replaced, and it is not clear if the brush could be purchased separately.

      • Hi Jon, Thank you for your prompt reply.
        But no.
        The rechargeable battery is NOT covered by the warranty, NOT replaceable, and in most cases (according to reports by the users freely available on-line) do not last much longer than one year. In my case, there was no long travels, and the brush has been charging all the time.
        Given the price of this item, the battery issue needs to be #1 on the CONs list. I am not sure the buyers realize, when paying the price for this toothbrush and floss that they will need a new one in a year.

        • Thank you for this feedback. It is disappointing and worrying that Waterpik are not covering the battery as part of the warranty. I will bear this in mind with future updates.

  2. I have been using the WP-900 for a little over a year now. My dental cleanings have gone from every 3 months, to every 4 months, now am at 5 months. My hygienist is thrilled with the results I have been getting. With arthritis in my hands, I was not able to floss well at all. This flosser is perfect. And has greatly increased my dental health. My only complaint is that I cannot find another unit for my husband.


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