The Best Water Flosser Under £50 (UK)

Medically reviewed by Dr Zaeem Jafri BDS on 22nd December 2025

As more technology seeps into everyday life, water flossers have surged in popularity across the UK as a highly effective gadget to add to your brushing arsenal. For many, an electric toothbrush alone simply doesn’t reach the nooks and crannies where plaque and food debris like to hide. Dental professionals increasingly recommend water flossers (also known as oral irrigators) to improve gum health, reduce inflammation, and support better overall oral hygiene. Their gentle yet efficient stream of pressurised water can flush out bacteria and debris from between teeth and along the gumline, making them particularly beneficial for people with braces, implants, bridges, or sensitive gums.

Before we get stuck in, there’s a lot you need to learn, including the different nozzle types, tank capacity and even price. There are many devices that can cost upwards of £100, so it’s worth checking on your budget and figuring out just how much money you’re willing to spend. Something under £50 can still provide plenty of value, help you level up your dental hygiene and keep those hard-earned pennies in the bank.

In this guide, we’ve analysed the best water flossers available in the UK for under £50, balancing performance, durability, ease of use, and value for money.

Dentists often cite two core benefits of water flossing. Firstly, it enhances gum health: clinical studies have shown that regular use can significantly reduce gingivitis and bleeding compared with string floss alone. Secondly, it improves interdental cleaning efficiency, helping users remove bacteria and food particles from hard-to-reach areas that traditional tools like string floss can miss. For individuals with orthodontic appliances or dexterity challenges, the ergonomic design and adjustable water pressure make these devices a game-changer.

Whether you’re new to water flossers or looking to upgrade your oral care routine without breaking the bank, these under-£50 options bring professional-grade dental care into the comfort of your bathroom. Let’s dive into the best picks that prove excellence doesn’t always come with a premium price tag.

How Have We Tested The Best Water Flosser Under £50?

All the water flossers featured in this article have been tried and tested by Dr Zaeem Jafri, our founder and expert dentist. And are a result of personal opinion.

They have been selected because of their price point, but also because they have some of the best features for getting the best results. Each will have its own merits and positives, so use your own research to help inform your own decision to find the best toothbrush for you. 

Features To Look Out For In A Water Flosser

Cleaning modes: To tackle various dental issues like braces, sensitive gums or dentures, water flossers typically come with a range of nozzle heads that can either focus the jet stream or blast it in a broader spray to get more coverage.

Cordless: Depending on the price, some may have built-in batteries to allow you to move away from the plug socket to clean. Note that these will typically not be able to run for very long and will need plenty of time to recharge. The alternative is a corded option, which requires you to be near a plug while you floss, but you’ll have a lot more time to clean generally.

Capacity: Water flossers have tanks to store the water used during a clean, and will typically hold between 50 and 400ml depending on the size of the device. Inevitably, the larger the flosser, the more water it needs and the longer you’ll be able to clean for.

Extra tips: As mentioned, water flossers can have multiple tips or nozzles to tackle different issues. Some might be spoon shaped to spray the water in a broader spread to clean the back of braces.

USB charging: Those flossers that are cordless will have a battery built-in, meaning you’ll need to recharge it every once in a while. Somme of the more advanced options have USB charging, which is faster and more efficient.

Battery capacity: Battery differs based on the size of the handle, and the larger the water tank, the shorter the lifespan of the battery.

Most of these products are available for quick delivery on Amazon. If you use our links to buy them, we may earn a little money, but be assured that this article contains our honest opinions.

Ordo Water Flosser

Key Specs

• Cleaning modes: 3 modes

• Cordless: Yes

• Capacity: 260ml

• Extra tips: 2

• USB charging: USB Charging port

• Battery capacity: 15 minutes total use

Ordo’s Hydro Sonic oral irrigator is an absolute steal for less than £50 when you consider what’s on offer. Its potent jet stream pulses high-powered water at more than 2,000 pulses a minute across three intensity settings so you can really take a tough approach on stuck food between your teeth. The nozzle is broad, allowing for 360-degree coverage for a faster clean, and the water tank is capacious enough for a decent length cleaning session without having to refill. Design-wise, it’s a bit utilitarian, but in most cases you’ll be hiding it under the sink anyway, and at this price point, you should be more concerned with its cleaning capabilities than its looks. For our money, it’s one of the best options overall, is easy to take with you on your travels, and offers some great features at this price.

Hangsun Water Flosser

Key Specs

• Cleaning modes: 3 modes

• Cordless: Yes

• Capacity: 300ml

• Extra tips: 8

• USB charging: USB Charging port

• Battery capacity: 30 days

Hangsun’s water flosser is incredibly well reviewed from a number of experts and review sites thanks to its affordable price, capacious water tank, range of nozzles and selection of cleaning modes. It’s essentially offering as many features as some of the more expensive options but for well under £30, making it, pound-for-pound, one of the best flossers available. It’s a large device that houses a 30-day battery, 300ml water tank and a powerful motor to blast out water in a focused beam to get at the stuck food between your teeth.

There are eight nozzles available, depending on your needs, and three modes, including a daily clean, a sensitive “soft” clean and a pulse mode that massages gums and allows for more focused cleaning without draining your water supply. All in, it’s one of our favourite options for its affordability and features.

Coslus Water Flosser

Key Specs

• Cleaning modes: 3 modes

• Cordless: Yes

• Capacity: 300ml

• Extra tips: 8

• USB charging: USB Charging port

• Battery capacity: 30 days

We hear many people worry that if they buy a cheaper dental cleaning device then they’ll be missing out on vital features that’ll help them improve their oral hygiene, but in most cases, and particularly when discussing this Coslus device, that’s simply not the case. Here, you’ll find plenty of value, including five nozzle heads, two cleaning modes, a large 300ml water capacity tank and a huge 30-day battery for around £20 depending on when you look on Amazon. In fact, we say two cleaning modes, but you also get the choice of 10 speed intensity settings for each mode, unlocking the freedom to customise your cleaning experience and find the right fit for you.

MySmile Water Dental Flosser

Key Specs

• Cleaning modes: 5 modes

• Cordless: Yes

• Capacity: 300ml

• Extra tips: 8

• USB charging: USB-C Charging port

• Battery capacity: 30 days

Nominative determinism in its prime, MySmile’s portable oral Irrigator will fill your smile with confidence and, crucially, clean teeth, thanks to its range of plaque-busting features and low price. Utilising a pulse technology for its stream, the blasts are forced through the nozzle at more than 2,000 movements a minute, providing hyper-focused jets that lift and remove food and debris efficiently. Combine that with any one of the five cleaning modes, from Strong, Normal, Soft, Pulse, and a child-friendly softer option, and you’ve got yourself a potent water flosser that can go the distance. The 300ml tank and 30-day battery are more than enough for a twice daily clean, and the USB-C recharge cable gets you back up to full charge quickly.

e love the 8 nozzles open for selection, with each catering to a different need, from sensitive bleeding gums, to braces and dentures. Granted, it’s only just under £50, but if your budget can stretch, it’s one of the best on our list.

FlossJet Water Dental Flosser

Key Specs

• Cleaning modes: 5 modes

• Cordless: Yes

• Capacity: 300ml

• Extra tips: 8

• USB charging: USB-C Charging port

• Battery capacity: 30 days

Yet another cheap and cheerful water flosser that’ll instantly level up your cleaning routine for less than £50, the FlossJet oral irrigator comes with five cleaning nozzles, four cleaning modes and an impressive, powerful jet stream that’ll blast away stubborn food and plaque from between your teeth. Here, the design is a bit more basic, with an all-black body that hides the water tank, and only two buttons on the front. But the more you investigate, the more versatility you uncover, including the ability to completely remove the 300ml tank for easier transport in luggage and a decent battery that has enough juice to see you through four hours of continual cleaning. The design is fully waterproof so can be used in the shower for more efficiency in your morning routine, and is also a bit more robust than many plastic options we’ve tested. Five nozzles and four cleaning modes round off an excellent pick at this price.

FAQs

What Is A Water Flosser?

With the introduction of modern technology into dental hygiene, we’re now at a point where high-powered gadgets can level up the process and improve efficiency and technique. Electric toothbrushes are all excellent ways to improve your brushing sessions, but a water flosser takes things a step further. A lot of people complain of sore gums when using traditional string floss, so instead, we suggest a water flosser, which is a specially designed device for blasting away food and debris from between your teeth without irritating the gum line.

It uses highly focused jet blasts from a narrow nozzle, shooting water in pulsed jets that can be targeted directly between your teeth, lifting away plaque and bacteria, rounding off your tooth brushing routine for a healthier, cleaner mouth. They have large water tanks that allow you to direct the streams anywhere in the mouth, clearing out stuck food from behind braces or targeting wonky wisdom teeth, places where traditional electric toothbrushes struggle to clear.

You’ll find multiple cleaning modes to help tackle common problems like sensitive gums, denture cleaning or blasting stubborn plaque away with more potent streams.

Is £50 Enough To Buy A Good Water Flosser?

We always recommend you stick to your budget and don’t overspend if you can’t afford to pay for more expensive options. You can easily find a quality flosser well under £50, which is what we’ve compiled above. All you really need is an option with decent battery, a large tank capacity, and a choice of nozzles to help you clean in different ways. Anything beyond that isn’t essential to the cleaning process.

What’s The Best Water Flosser Nozzle For My Teeth?

If you have dentures or braces, you’ll need a flosser that has a particular nozzle that diverts the water blast in a cone-like spray, spreading out the water jet for more coverage and allowing you to clean along the back of your teeth or in particularly tough-to-reach places. For sensitive teeth, look for an option that has a lower-power cleaning mode, or a dedicated sensitive setting to eliminate distressing sore gums. We recommend talking to your dentist to find out which nozzle will be best for your situation.