Waterpik Reviews: Waterpik Complete Care Water Flosser and Sonic Toothbrush WP-900; WP-940; WP-950

by | May 11, 2017 | Product Reviews, Waterpik Reviews

Taking care of your smile is all in all pretty simple. You need to remove plaque and food particles from your teeth daily to prevent oral health problems. The best way to remove plaque from the surface of the teeth is by brushing, the best way to remove it from in-between your teeth – flossing. So, in order to have healthy teeth and gums, you need to do both.

The toothbrush and the string floss are pretty old pieces of technology. Since we are living in the 21st century, science has given us a high-tech update: the sonic toothbrush and the water flosser. Those two gadgets are not only more efficient than the classic alternatives, but they are easier to use.

Waterpik understands the need to have both and conveniently has created for us the Waterpik Complete Care water flosser and sonic toothbrush, WP-900.

NB: A new Waterpik Complete Care model is come out – the Waterpik CC-01 Complete Care 9.0.

The complete care WP-900 series seems like Waterpik’s premium offering – their high-end products. Yet, those products offer the most value for money out of all Waterpik products. In fact, at the time of writing this Waterpik review, the Waterpik Complete Care WP-900 is sold at discount on Amazon for the same price as the Waterpik Sensonic Professional Toothbrush (SR-3000) when sold separately. Basically, you receive a free high-quality water flosser as a gift for buying a great sonic toothbrush.

Even when not on discount, the WP-900 series provides a lot of bang for the buck. (Of course, the older model WP-900 is a bit cheaper than the new one – Waterpik Complete Care 7.0, WP-950).

In this Waterpik Complete Care review, we will explore the whole WP-900 range since all three models are very similar: Waterpik Complete Care (WP-900), Waterpik Ortho Care (WP-940) and Waterpik Complete Care 7.0 (WP-950). Any differences between the three can be seen in the comparison chart further down.


  • Value for money: a high-quality water flosser and sonic toothbrush for much less $ than buying them separately
  • Convenience: only one plug for both gadgets, toothbrush charges on the flosser
  • Performance: clinically proven effectiveness for good oral health


  • Non-replaceable toothbrush battery (unless you replace it DIY style)
  • No separate charger for the toothbrush – not good for travel
  • Only two speed settings on the Sensonic toothbrush (weak & very strong)
Waterpik Complete Care (WP-900), Waterpik Ortho Care (WP-940) and Waterpik Complete Care 7.0 (WP-950)

Waterpik Complete Care review:

Let us start with what’s most important – effectiveness. In this case, there is no doubt about it. The water flosser + sonic toothbrush combo is extremely good at its job, which is keeping your smile healthy. The combo of brush & flosser allows you to reach all surfaces and removes practically all plaque biofilm from treated areas. What is more – the massage from the water jet is very beneficial for your gums (it reduces gingivitis). All these claims are supported by clinical trials – a fact Waterpik is very proud of.

Having both gadgets in one package is also very convenient. You need only one power outlet  (120VAC/60Hz for use in North America Only) – the Sensonic toothbrush charges on the base of the water flosser. Having them together is also more likely to make you use them together. As you know consistency is what is most important for oral health.

Waterpik WP-900 series: Sonic Toothbrush

Waterpik’s Sensonic Toothbrush (the one you receive in all Complete Care models), as all high-end sonic brushes, packs an array of features:

Waterpik Sensonic sonic toothbrush
  • It is water resistant (you can use it in the shower).
  • It has a quadrant timer: the toothbrush signals you every 30 seconds. Two 30s periods for your top teeth and two 30s periods for your bottom teeth. Two minutes in total, which is the recommended brushing session time.
  • It reaches a speed of 30,500 strokes per minute. Nonetheless, it has only two speed settings. For some people, this is not an issue, but other users feel like the high setting is too powerful, while the low one – too weak. The high setting is quite intense compared to most sonic toothbrushes – some users love this, but if you have sensitive teeth the experience wouldn’t be pleasant.
  • It includes one standard and one compact brush head. The Waterpik Complete Care 7.0, WP-950 includes two of each.
  • It includes a convenient travel case that allows air to flow through it and doesn’t lock-in moisture. Nonetheless, all models in the WP-900 series don’t include a separate charger. This is a problem for longer trips since the battery isn’t very long lasting. (Of course, you can still use the Sensonic as a manual toothbrush when the battery runs out, but that’s beside the point.)

Waterpik WP-900 series: Water Flosser

The tech specs of the WP-900 water flosser are quite typical for a Waterpik:

  • It has 10 pressure settings – from 10 to 100 PSI.
  • The water flow rate is 13 Ounces per minute and the tank holds 23 ounces of water (700 ML), which means that it lasts for 90 seconds. This is more than enough for the recommended water flossing session of 60 seconds.
  • The tank is removable, which makes it easy to fill and empty before and after use. It could also be cleaned in a dishwasher.
  • The tank lid is fully removable and doesn’t get in the way.
  • The replacement tip and brush head storage is in our opinion the best out of all Waterpik water flosser models.
Waterpik WP-900 replacement tip and brush head storage
  • The WP-900 and WP-950 include 5 replacement tips: 2 Classic Flossing, 1 Orthodontic, 1 Plaque Seeker and 1 Pik Pocket. The Ortho Care WP-940 includes 4: 1 Classic Flossing, 2 Orthodontic, 1 Plaque Seeker.
  • The water flosser weighs 2.45 Lbs (1.11 kg), which is more than most other water flossers on the market. Since this is a countertop device, more weight is actually a benefit. It sits firmly on the counter and is hard to accidentally pull to the ground.
Waterpik Complete Care (WP-900)

Comparing the Waterpik 660 vs 900, it is noticeable that the water flosser of the Waterpik Complete Care models doesn’t include any of the advanced features of the Waterpik Aquarius (WP-660). Namely: a LED function indicator, 30s timers, and a massage mode. These functions were probably omitted by Waterpik to cut costs and achieve a lower price. Bear in mind that the Waterpik Complete Care sonic toothbrush and water flosser combo models are sold around $100. In comparison, there are similar sonic toothbrushes on the market that sell for more than $150 alone. Nonetheless, I feel these functions should have been included in the high-end Waterpik Complete Care 7.0 (WP-950) model.

The most common user complaints about the water flosser are the standard ones – that it is loud and messy.

Truly, all powered water flossers are loud and the Complete Care models are no exception. If your bathroom is close to your bedroom and you want to use the flosser while your partner sleeps, this might be a problem, so you should keep this in mind.

As for being messy: this is only a problem if you are not using the gadget correctly. Proper technique solves this problem:

Waterpik Complete Care review:

In terms of design, the Complete Care WP-900 series is nothing groundbreaking. The WP-900 resembles a bit the Waterpik Ultra WP-100 with its white and blue color scheme. The WP-940 and WP-950 are closer to the Waterpik Aquarius WP-660 & 670 with a color scheme of white and light gray and a clear water tank.
Waterpik Complete Care (WP-900), Waterpik Ortho Care (WP-940) and Waterpik Complete Care 7.0 (WP-950)

The details of the Complete Care 7.0, WP-950 are a bit more refined. It has round dials covered by what feels like a rough metallic material for better grip. Moreover, unlike the WP-900 and WP-940, the Complete Care 7.0 comes in black (WP-952). In our opinion, the WP-952 model looks best out of all of them. Nonetheless, keep in mind that water and toothpaste marks are more easily visible on black surfaces.

All in all, the device seems modern, which is good, but at the same time, it is quite bulky. The Waterpik Complete Care 5.0 and 5.5 (WP-861 & WP-812, which we review in full here) have a much sleeker design and a smaller footprint. Yet, this comes at the cost of the much more convenient replacement tip storage that the Waterpik WP-900 models have.

Waterpik Complete Care review:

One of the biggest strengths of Waterpik as a brand is the reliability of its products. They are not perfect for sure but are miles ahead of most of the competition in the water flosser market. The Waterpik Complete Care series is no exception.

Waterpik WP-900 series: Water Flosser

There are very little complaints about the reliability of the water flosser itself. The most common issue with water flossers are leaks, yet even such complaints are rare for the Complete Care series.

It is worth mentioning that the Waterpik WP-900 uses the same hose and handle as the Waterpik Ultra. The Waterpik WP-940 and Waterpik WP-950, on the other hand, use a handle very similar to that of the Waterpik Aquarius. As we have mentioned in other Waterpik reviews, the handle of the Aquarius is superior to that of the Ultra. It is more conveniently designed and it suffers less from issues with an O-ring seal that causes leaks. This means that if you get the WP-900, you might have to replace the hose and handle sooner than on the WP-940 & WP-950.

Waterpik Sonic Toothbrush travel case

Waterpik WP-900 series: Sonic Toothbrush

Most of the complaints about the Waterpik Complete Care products are related to the battery life of the toothbrush.

The battery is officially not replaceable. This means that when it stops holding enough charge, you have to replace the whole sonic toothbrush. This is a problem since sonic brushes are quite expensive.  (Unofficially, we have a solution to this problem below.)

In order to prolong the life of the toothbrush, you need to maintain in properly. You should NOT store it on the charger. This will over charge the batteries and decrease their lifespan significantly. What is more, it will void your warranty. Instead, you should keep it off the charger most of the time and put it on only when you need to charge it.

As we said, once the batteries start to fail, you cannot get a replacement from Waterpik. Nonetheless, you can actually replace them yourself: If you are handy and you know how to solder wires, you can remove the batteries, make a new replacement pack and put it in place. If you are not handy you can take the brush to the closest batteries place and ask them to do it for you. The battery pack inside the Sensonic toothbrush is nothing special – it is made out of two taped together AAA rechargeable cells. So, you can even buy better batteries that hold more charge when replacing them to not only fix but also upgrade your toothbrush. More charge is quite convenient for travel, bearing in mind there is no portable charger for the toothbrush.

Waterpik Complete Care review:

Waterpik Complete Care (WP-900) vs Complete Care 7.0 (WP-950) vs Ortho Care (WP-940)

Waterpik Complete Care (WP-900) vs Complete Care 7.0 (WP-950) vs Ortho Care (WP-940)

Waterpik Complete Care,

  • Usefulness 75%
  • Design 50%
  • Reliability 75%
  • Value for Money 85%
  • Value for money: Cheaper than WP-950
  • Older model, so much more likely to be sold on discount

Waterpik Complete Care 7.0,

  • Usefulness 75%
  • Design 60%
  • Reliability 80%
  • Value for Money 75%
  • 2 more brush heads
  • better handle than WP-900;
  • slightly improved design, available in black (WP-952);

Waterpik Ortho Care,


  • Usefulness 75%
  • Design 60%
  • Reliability 80%
  • Value for Money 85%
  • 1 more Orthodontic tip; just 1 Classic Flossing tip; no Pik Pocket tip;
  • Better handle than WP-900;
  • Cheaper than WP-950;
  • Orthodontic wax;
Comparing the WP-900 vs WP-950 vs WP-940 is quite simple since they are mostly the same gadget. The main difference is that for a bit more money the WP-950 gives you two more brush heads, a better handle, and a bit more refined design. The Waterpik Ortho Care, on the other hand, is designed to be more useful to people with braces and other orthodontics. It has 1 more orthodontic tip and includes orthodontic wax in the package.

Waterpik Complete Care review:

If you want to take the best possible care of your smile you need a Sonic Toothbrush and a Water Flosser. If you have none of the two, The Waterpik Complete Care series is probably the best solution to your problem. You get a very high-quality brush and flosser in one package for a very reasonable price. Buying both things separately will probably cost you a lot more and I personally don’t see any benefits of doing so (unless you are aiming at a super high-end sonic toothbrush with more features).

If the design of the Waterpik WP-900 series bothers you, make sure to check out our review of the Waterpik Complete Care 5.0 (WP-861W) & 5.5 (WP-812). These models have a more refined design and a smaller footprint at the cost of worse replacement tip storage. Their Triple Sonic toothbrush has more features (three separate modes), but feels cheaper and a bit gimicky compared to the Sensonic which is included in the WP-900 series.

Of course, if you already have a good Sonic toothbrush that you like, you should check out some stand-alone water flossers (or vice versa) to save some cash.

Waterpik Complete Care (WP-900) vs Waterpik Complete Care (WP-940)