The Best Water Flossers Under £150 2025 (UK)
Medically reviewed by Dr Zaeem Jafri BDS on 22nd December 2025
So you’ve got your electric toothbrush and now you’re wondering what else you can do to level up your dental hygiene. One of the best additions to your routine to help clear away plaque and reclaim a dazzling smile is to pick up a quality water flosser, a jet-powered tool that’s perfect for cleaning between your teeth and won’t irritate your gums like traditional string floss. This roundup will help you navigate the best devices on the market that deliver powerful plaque removal and improved gum health, all for less than £150.
A brief conversation after your next dentist check-up will likely end with them recommending you get a water flosser (also known as an oral irrigator) if you suffer from sensitive bleeding gums or find that there’s leftover food or debris caught between your teeth. They use high-powered tiny streams of water to target those hard-to-reach areas around wisdom teeth, behind your teeth and along the gum to blast away anything your toothbrush can’t clear, giving you a completely clean smile when used in combo with an electric toothbrush.
Used correctly, a water flosser can significantly reduce gingivitis and promote healthier gums. Sounds great, right? Just keep in mind that the best water flossers are to be used in tandem with your electric toothbrush, not as a straight replacement. With that in mind, check out our guide of the best water flossers under £150 that are ideal for your every-day routine.
How Have We Tested The Best Water Flosser Under £150?
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: Many water flossers come with multiple cleaning modes to tackle issues like deep clean, sensitive gums, tongue cleaning or specific modes for braces.
Cordless: Some water flossers require a cord connected to a power socket to function, which can be a bit irritating if you don’t have close access to a plug socket by your sink. Cordless options are more expensive and bulkier but give you more freedom to move around.
Capacity: The internal water tank of the flosser will denote how long you can use the device in one cleaning session. Larger tanks make the tool heavier and harder to manage but give you more than 2 minutes of cleaning. Smaller options are obviously more agile but may only have enough water capacity for 30 seconds of cleaning.
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, inevitably, 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.
Panasonic Series 800
Key specs
Cleaning modes: 5 modes
Cordless: Yes
Capacity: 200ml
Extra tips: 2
USB charging: USB-C Charging port
Battery capacity: 10 minutes total use
Pound-for-pound the best water flosser available and one of our favourites, the Panasonic 800 is the most versatile, most powerful and longest-lasting option on our list, though it comes with a higher price tag. Five spray settings, from an intense individual tooth blast to a broader sptriz to cover braces, it’s remarkably multi-faceted. The brush comes with multiple nozzles, including a thinner one with a brush that can be used to dislodge plaque and debris as you blast.
The water tank is capacious, and the battery keeps up with a two-week routine before needing a recharge. Thankfully, it’s USB-C compatible, so is lightning quick to get back up to full charge.
Spotlight Oral Care Water Flosser with UV Steriliser
Key specs
Cleaning modes: 3 - Gentle, clean and pulse
Cordless: Yes
Capacity: 400ml
Extra tips: 5
USB charging: Wireless Charging port
Battery capacity: 10 minutes total use
We love a device that takes cleanliness completely seriously, so the Spotlight Oral Care flosser is a complete winner in our eyes. Not only is it a potent dental flosser with multiple nozzles and a capacious water tank, but it also self sterilises the tips between cleans, so you can confidently wash your teeth without fear of introducing more bacteria each time you use it. The 400ml tank is more than enough for a morning and night cleaning routine, and it uses a unique gravity ball inside the tank to draw out more water for its intense jet streams, blasting away unwanted plaque efficiently.
Philips Sonicare Cordless Power Flosser 3000
Key specs
Cleaning modes: 5 - Gentle, clean at three intensities
Cordless: Yes
Capacity: 250ml
Extra tips: 2
USB charging: Wireless Charging port
Battery capacity: 60 seconds total use
While this Philips flosser sounds like the great grandson of a device from 2001: A Space Odyssey it’s actually one of the most comprehensive water flossers available, with its innovative cross-shaped “quad” stream. The water blasts out in multiple intensities, but splits into a cross-shape with four separate jets, giving you more coverage, speeding up cleaning and allowing you to hit multiple parts of the mouth at once. One of the nozzles also slowly rotates, fanning out the jet streams evenly for a rapid clean that touches every corner of the mouth. It’s a little on the heavy side, but it’s not much to complain about when you’re enjoying this much firepower to blast away plaque.
AquaSonic Aqua Flosser
Key specs
Cleaning modes: 3 - Gentle, clean and sensitive
Cordless: Yes
Capacity: 300ml
Extra tips: 5
USB charging: Wireless Charging port
Battery capacity: 60 seconds total use
One of the most affordable options on our list, the AquaSonic water flosser is well-equipped to level up your dental care, with three cleaning modes, five tips, a huge water tank and plenty of battery to get you through your daily clean. This is also one of the best tools for anyone with sensitive teeth or braces, as the included heads and gentle cleaning mode are great for a lower-pressure clean that still gets results. Despite its bulky size, it’s surprisingly lightweight and travel-friendly, so keep that in mind if you’re hoping to keep on top of your hygiene while on holiday or on a business trip.
Oral-B Oral Health Centre Oral Irrigator
Key specs
Cleaning modes: 4
Cordless: Yes
Capacity: 400ml
Extra tips: 1
USB charging: Wireless Charging port
Battery capacity: 60 seconds total use
Those taking their dental hygiene seriously will love Oral-B’s Oral Health Centre, a complete water flosser collection that features an iO4 electric toothbrush, a water flosser and a water tank and recharge station which will top up the battery and your water supply. The oral irrigator has five cleaning modes and an intense oxyjet blast that fires a broader, intense stream of water that' takes a no-nonsense approach to plaque, giving you noticeably cleaner results in just a few weeks of use. You can use the pulse mode to fire targeting blasts between teeth, and then place it back in the health centre to keep things tidy and away from a cluttered sink side.
FAQs
What Is A Water Flosser?
Water flossers are useful tools recommended by dentists to help clear away stuck food and debris from between your teeth and is an excellent alternative to string floss if you find that irritates your gums too much. They are handheld devices that have a small water tank (that you can also add fluoride to if you want to supercharge your cleaning routine) and a motorised nozzle that squirts out water in a precision jet wash. The nozzles, which can be customised to help tackle braces, dentures or other dental issues, focus the jet of water between your teeth and along your gums, much in the same way regular floss does, clearing out anything your electric toothbrush missed.
Many people find them to be more efficient that standard flossing and many dentists also now recommend pairing a water flosser up with an electric toothbrush to further develop your dental hygiene. A water flosser should solve a lot of your dental issues like bad breath, gingivitis and stains that yellow teeth.
How Much Money Should I spend On A Water Flosser?
Motorised water flossers are, inevitably more expensive than a roll of string floss, and there’s a broad range of options depending on your budget, so you should do your research and find one that sits within your price range. Here, we’ve selected options under £150, which is more than enough to get top-tier features like multiple nozzle heads, different cleaning modes and sizeable water tank sizes.
