

💦 Elevate your smile game—because your gums deserve VIP treatment!
The Onlyone Rechargeable Cordless Water Flosser combines advanced water pulse technology with 4 adjustable pressure modes (1500–2000 pulses/min) to deliver gentle yet effective plaque removal. Featuring a large 300ML BPA-free tank and a powerful rechargeable battery lasting up to 30 days per charge, it’s designed for both home and travel use. Its IPX7 waterproof rating allows safe use in the shower, while specialized tips make it ideal for sensitive gums, braces, and dental appliances—offering a professional-grade clean that fits your dynamic lifestyle.












| ASIN | B0D5RFBB7M |
| Additional Features | 300ML water dental flosser pick, 4 modes water dental flosser pick,, Portable, Rechargeable, Waterproof, Cordless |
| Best Sellers Rank | #1,519 in Health & Household ( See Top 100 in Health & Household ) #8 in Power Dental Flossers |
| Brand | Onlyone |
| Brand Name | Onlyone |
| Color | Black |
| Customer Reviews | 4.4 out of 5 stars 14,322 Reviews |
| Included Components | 1 Charging Cable, 1 User Manual, 5 Replacement Heads, Adapter not included, Water Dental Flosser |
| Item Dimensions | 8.68 x 2.91 x 3.19 inches |
| Item Nype Name | Water Dental Flosser |
| Manufacturer | Onlyone |
| Manufacturer Warranty Description | 1 year |
| Material Type | Plastic |
| Model Name | Onlyone FC5090 |
| Model Number | FC5090 |
| Power Source | Battery Powered |
| Product Benefits | Freshen your Breath, Removes Plaque, Improve Oral Health,smile with Confidence |
| Recommended Uses For Product | Water Dental Flosser |
| Special Feature | 300ML water dental flosser pick, 4 modes water dental flosser pick,, Portable, Rechargeable, Waterproof, Cordless Special Feature 300ML water dental flosser pick, 4 modes water dental flosser pick,, Portable, Rechargeable, Waterproof, Cordless See more |
| Tank Volume | 300 Milliliters |
| Target Use Body Part | Teeth |
| UPC | 198715558647 |
| Unit Count | 1.0 Count |
S**N
A great hygiene tool.
I've been using this water pick for a couple of months. Love the reservoir size and the ability to fill it without using the little hole. Really is handy. The pick works well. The buttons make changing the settings easy. And the battery life is wicked good. For this price? This is well worth it. Great quality at affordable price. I've used the big name n for several years and this is better. Can't beat it.
C**4
Easy to Use Great Results
Update: 01/21/26--I felt it was important to state that I use the water flosser IN ADDITION TO my daily brushing and flossing routine. I use floss picks, interdental brushes, and regular dental floss. I also use Plax pre-brushing rinse to help remove plaque. I use a battery-operated Oral B toothbrush. The water flosser is a great addition to my normal routine. I received this water flosser 10/17/25 and began using it after I charged it overnight. I decided to wait until after my dental cleaning appointment to write a review so I could get feedback from the hygienist regarding the effectiveness of removing plaque. At my dental appointment on 12/11/25, the hygienist was pleased because there was very little plaque buildup on my teeth. Her only recommendation was to use the flosser on medium speed because she said high could cause damage to the gum tissue. Here are the PROS and CONS: PROS: It's very easy to fill the tank with water. (I use filtered water that I store in a water bottle on the counter) It holds a charge for two to three weeks. It's easy to use and makes my teeth feel really clean. It comes with five cleaning attachments: 2 regular water sprayers, 1 plaque removal tool, 1 tool for braces, and a tongue cleaner. I keep the tip covered with a toothbrush cover when not in use. CONS: It is a bit messy as water flows out of your mouth and on the handle which makes it slippery. Overall, I'm happy with the product and the results.
F**K
Recommend with a minor caveat (see review)
I have owned a number of cordless water flossers over the years including one from the top name brand. From my experience I would say they are all essentially the same. It is a simple product with a water vessel, a pump, a battery and a variety of tips. Given the way they work and common features it appears to me that the differences are minor, however, there are some design features that might make you consider one product over another. First, what I really like about this flosser. Price is one of them. For about $20 you get a pretty good product. There is no reason to spend much more to get a dental flosser that just squirts water around your teeth. The high price flossers don't do anything more and from my experience any better. It comes with a variety of water jets, three pressure settings plus a pulse setting, it uses a type C charging plug. On a full charge the flosser works over a month for me with twice daily use. A feature that makes this flosser really stand out is the water container. Unlike most flossers the design of the completely detachable water tank is revolutionary! It's shaped more like a jar with a twist top. It's easy to remove and effectively cleaned. You can use a glass cleaner brush going through the large opening to get to all the corners of the tank. All flossers should have this design. There is an additional feature that is worth considering. You can't just tap the start button and have water squirt out. There is a second or two delay built in that keeps you from having water squirt all over you, the mirror and the sink. A thoughtful feature. What I think needs some attention is the design of the combo on/off and pressure switch. First off the switch is flush with the body of the flosser so if you are turning it on and off by feel it can be a bit of a challenge to know where to place your finger to operate the instrument and making sure that you don't hit the part of the switch that operates the other function. I would have liked to see the switch a little further out from the body so it would be easier to locate with wet hands. Overall, I recommend this product and think it is a very good buy.
T**Y
Great Value - Excellent Product
This works great. I fell a definitely change in my gums already. I also really like the different levels of pressure. Great value for what you are getting.
Z**O
Onlyone Rechargeable Cordless Water Flosser – Adjustable & Convenient
This water flosser is easy to use, cordless, and rechargeable. The adjustable settings make flossing gentle yet effective, leaving teeth and gums feeling clean and refreshed!
L**R
Amazing product.
This product works flawlessly! The water pressure is incredible, and all the different modes are effective. As someone with braces, it managed to clean between my brackets and remove any debris. It’s not cheaply made either, feels heavy and very durable.
K**R
Compact and portable
I got this to replace my water pic that broke it's cord. It's a little more awkward to use than the water pic as you hold the whole unit instead of just the attachment, but it's easy to get used to, and it doesn't have a cord to break. I love the rechargeable aspect, it frees up my precious bathroom outlet. It's also smaller than the water pic, so it also frees up a little counter space.
T**R
A Good Portable Flosser, But 2 Huge Design Flaws Make It Not Worthwhile
First, the good: I have a high-end Waterpik plug-in tabletop model, and this cordless flosser works as well at cleaning between my teeth. I use the Medium pressure setting, and it is more than sufficient to keep my chompers perfectly clean as it thoroughly flosses between all of them with relative ease. The water reservoir is much larger than is needed to clean your entire mouth, but filling it up means you'll get a more reliable stream of water when you move the unit around while cleaning your mouth. The battery life so far seems to be good. Now, the not-so-good: This flosser charges via USB, which is potentially great since most electronics charge that way. BUT, for some reason the manufacturer decided to not go with a standard USB-C port, or any other USB port for that matter, and instead decided to use a miniature "figure 8" style plug. For this, they include a single, rather short cable with the plug on one end that fits the device and an old-style USB-A plug on the other end. That's it, no USB-C plug on either end in 2026 when USB-C is well on its way to being standard. No option to use a cable on-hand if you lose their proprietary, short cable. THIS is the worst design decision I've seen in a product in a very long time and it's enough that I very nearly sent it back, and probably still should if it hasn't been too long. The other problem is with the buttons. The buttons are smooth and flush with the body/handle of the device. This makes it hard to feel where they are if your hand slips a bit and you need to turn it off. Conversely, it also makes it easy to accidentally hit the button while flossing and inadverdently turn it off. It's a terrible design, almost as terrible as the power cord decision.
Trustpilot
2 months ago
1 week ago