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usmile C30 Cordless Water Flosser – Portable Oral Irrigator Save 44%

Save 44%
£75.57 £135.00
Tax included.

Multiple payment options available

Color: Pink
Features at a Glance
  • 60s Continuous Clean with 300ml Tank
  • WaveFlow Stream,Powerful 99.99% Plaque Removal
  • 5 Pressure Levels, Gentle to Deep
  • Travel-Ready with USB-C Charging
  • IPX7 Waterproof, Long Battery Life
  • Upgraded Nozzles Reach Back Teeth
Shipping & Return

Estimate delivery time: within 3-5 business days from the shipment date. Check Shipping Policy here.

If you don’t love your usmile product(s), we accept returns within 90 days of purchase for a full product cost refund. Check Return Policy here.

Local Fast Shipping
90-day Money Back
Free Shipping Over £50
1 year warranty

One Full Clean. Anywhere.

For a complete, uninterrupted clean—at home or on the go. Meet usmile C30, a cordless portable water flosser made for busy days, small bathrooms, and everything in between.

60s Flossing Time,
No More Refill

1.5x Longer Flossing Time

Enjoy at least 60s of continuous water flossing for a complete routine.

300ml Large Water Reservior*

Fill once and floss with confidence.

Steady Power to the Last Drop

Every second feels just as effective as the first.

Noticeably Clean, Every Time

Removes 99.99% of Plaque and Food Debris

With 1400 pulses per minute, C30 oral irrigator quickly flushes away buildup between teeth and along the gumline, perfect when you want results without effort.

Designed for Between-Teeth & Orthodontic Care

The focused water stream reaches where floss can’t, supporting dental hygiene for braces, aligners, and sensitive gums.

S-shaped Nozzle Cleans Back Molars Effortlessly

The upgraded S-shaped nozzle reaches deep without forcing your mouth open wide—so even back teeth feel easy to clean.

5 Pressures You Need,
From Gentle to Deep

C30 puts you in full control without any guesswork. Just press start and adjust the 5 fine-tuned modes and 30–110 psi pressure range to match your comfort and needs.

Find the Right Fit for Your Oral Care Routine

usmile C30 Cordless Water Flosser – Portable Oral Irrigator

One device.
Every scenario. No compromise.
£75.57 £135.00

usmile C10 Portable Dental Flosser

Ultra-portable,
for quick daily maintenance
£63.99 £99.98

Regular Water Flossers

-
N/A
60s Stable Streaming Time 45s Stable Streaming Time 30-45s Streaming Time
300ml Reservoir* 180ml Reservoir 250ml Reservoir
5 Pressure Controls 4 Pressure Controls 3 Pressure Controls
Ultra-Massage Mode with 30PSI Low Mode with 35PSI 3 Pressure Controls
30-110PSI Pressure Range 35-110PSI Pressure Range 45-75PSI Pressure Range
60-day Battery Life 90-day Battery Life 30-day Battery Life
Universal USB-C Charging C8/USB-C Charging Magnetic Charging With a Special Cable
Travel & Home Ready Ultra Portable Travel & Home Ready
67.06*73.37*214.67mm 72.5*44.5*146.8mm 69.6* 96.5*295.9mm
324g 300g 363g
Sleek & Modern Design Sleek & Modern Design Traditional Design

Uninterrupted, Effective Water Flossing

Water Flosser Features

Pressure Settings

5 Levels

Pressure Range

30-110psi

Capacity in Seconds

60s (Max. Pressure Settings)

Pulses per Minute

1400+200

Reservoir Capacity

300ml*

Waterproof

IPX7

Water Flosser Features

Included Flosser Tips

3 (Standard, Guidance, Orthodontic)

Rotating Tip

360 Degree

Battery

Battery Life

Up to 60 days

Charging Time

4-6 Hours

Battery Type

Rechargeable lithium battery

Charging Cable

USB-C

Dimension

Weight

324.8g (11.5 ounces)

Height

214.7mm (8.5 inches)

Width

67.1mm (2.6 inches)

Depth

73.3mm (2.9 inches)

Upgrade Your On-the-Go Experience

usmile C30 Cordless Water Flosser – Portable Oral Irrigator 44% OFF

£75.57 £135.00

usmile Replacement Dual-Flow Nozzle — Jet and Spray for a Deeper Clean 15% OFF

£16.99 £19.99

usmile Y20 PRO AI Electric Toothbrush 33% OFF

£99.99 £149.99

*Physical reservoir capacity based on internal testing

£75.57 £135.00
  • 5 stars: 34 (71%)
  • 4 stars: 12 (25%)
  • 3 stars: 2 (4%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
R
Rachel H.
A bit pricey but worth it for the quality

I went back and forth on the price but decided to give it a shot after reading about the features. Build quality is solid, the pink color is nicer in person than in photos, and setup took about 2 minutes. The 3 included nozzle types cover different needs.I mostly use the standard one but the guidance tip was helpful when I was learning proper technique. Battery lasts a long time between charges. If you're serious about your oral hygiene and travel regularly, it's worth the investment.

V
Valery Burtsev
Water bottle or flosser?

This review is for usmile C30 Cordless Water Flosser. It comes with 3 different tips (normal, orthodontic, targeted), the flosser, a USB-A / USB-C charging cable and instructions.
The flosser kind of looks like a water bottle when no tip is inserted.
The bottom is the tank and can be twisted. I like the fact that the tank is removable so it can dry better and can be cleaned with dish soap. It is easy to twist off and back on. There's also a small hole on the side of the tank that can be used to fill it. With the frosted design it is overall easy to see how much water is left, though the top is opaque and while it is still at least 2/3 full, you won't be able to see the exact level.
Operating it is easy, turn on with the push of a button and then the stream starts. It starts off gently and it is easy to adjust the strength up and down with the respective button (top button for more, bottom button for less pressure). I tend to use the third setting most of the time but a gentler stream is good for days when I have irritated gums or a harder stream for more stubborn residues between the teeth. I think there's a suitable pressure level for everyone.
It is relatively quiet and does not bother me when using it.
I definitely noticed that it removes food residues that I wasn't able to remove with my toothbrush and it is effortlessly done.
Overall, I definitely recommend this product. It seems sturdy and quality made which justifies the high price point of 79.99 at time of review.

C
Charley

Didn’t realise I needed this in my life. Great addition to brushing. Easy to use and makes a difference

K
Kevin M.
Solid flosser for frequent travel

I'm on the road about 2-3 weeks per month for work. Most hotel bathrooms don't have enough counter space for a full water flosser setup, but the C30 stands on its own, doesn't take up much space, and the Flight Mode means I don't have to worry about it accidentally turning on in my carry-on. USB-C charging is a must for me since I already carry that cable. Does what it says.

S
Sandra L.
Gentle enough for my sensitive gums

My dentist recommended I start water flossing because I have pretty sensitive gums and traditional floss was causing irritation. The lowest pressure setting on this thing (Level 1) is genuinely gentle, it doesn't feel like it's blasting water at my gum line. I worked my way up to Level 3 over a couple weeks and it feels great. No bleeding, no soreness. Really glad I picked this over some of the more aggressive models out there.

T
Tasha Karaj
Flossing made easy

This review is for usmile C30 Cordless Water Flosser. It comes with three tips (normal, orthodontic, targeted), the flosser itself, a USB-A / USB-C charging cable, and instructions.
The flosser looks a bit like a water bottle when no tip is inserted.
The bottom part holds the water tank, which can be twisted off. I like that the tank is removable for better drying and can be cleaned with dish soap. It's easy to twist on and off. There's also a small hole on the side for filling it up. The frosted design helps to see how much water is left, although the top is opaque, so you can't see the exact level when it's still about 2/3 full.
Using it is easy, just press a button to turn it on, and the water stream starts. It begins gently, and you can adjust the pressure with two buttons (the top one for more pressure and the bottom one for less). I usually use the third setting but find the gentler stream helpful for days with irritated gums, and a stronger stream works well for stubborn food particles between teeth. There's a pressure level that will suit everyone. Once you have used it once, it will always start off with the last level you used.
It operates quietly, which I appreciate.
I noticed it removes food particles that I didn't remove when brushing and it is easy to do so
Overall, I recommend this product. It feels sturdy and well-made, which justifies the price of $79.99 at the time of my review.

M
Meatwad
Seriously Leveling Up My Oral Care: usmile C30 Water Flosser Review

Okay, I've been meaning to get a water flosser for ages, and I finally took the plunge with this usmile C30 model and I'm so glad I did! It's made such a difference in how clean my mouth feels.

I was a little intimidated at first, but it's super easy to use. The different pressure settings are great; I started on the lowest one and gradually worked my way up as I got more comfortable. Even on higher settings, the stream is really consistent no annoying sputtering or drops in pressure! It makes the whole process so much smoother.

I love that it runs for a full 60 seconds, which feels like enough time to get everything clean without having to constantly refill the reservoir. And the different nozzles are really helpful; I especially appreciate the guidance one for getting those hard-to-reach back teeth. It genuinely feels like my mouth is cleaner than just brushing alone!

The cordless design is fantastic too. it's so convenient, and perfect for travel. Plus, the battery life is amazing. I've been using it for over a week on a single charge! The pink color is cute, but honestly, it's the performance that really stands out.

If you're looking to upgrade your oral care routine, I highly recommend this water flosser. It feels like a worthwhile investment in keeping my teeth and gums healthy and it's surprisingly enjoyable to use!

J
Janet R.
Good for braces! wish I had this years ago

My daughter has braces and keeping her teeth clean has been a constant battle. We bought the C30 based on a recommendation and it's been a game changer. The orthodontic tip that comes included is perfect for cleaning around the brackets. She says the water pressure is strong enough to feel like it's actually doing something but doesn't hurt. Would highly recommend for anyone with orthodontic work.

C
CrafteA
Amazing Water Flosser

I started with the C10 for travel. It was awesome and so I got the C30 for home use. I hardly ever flossed until now. I can't believe how clean my teeth feel after water flossing. It's now my daily routine.

P
Priya N.
Noticeably cleaner teeth, smaller bathroom

I live in a NYC apartment with a tiny bathroom no room for a countertop water flosser. The C30 is perfect because I can store it in the medicine cabinet and charge it via USB-C (same cable as my phone). My teeth genuinely feel cleaner after each use. I can feel it dislodging stuff regular brushing misses. The S-shaped nozzle that came in the box is great for my back molars which I always struggled to reach.

A
Alicia F.
One tank, no stopping

My previous water flosser had a tiny reservoir and I'd have to refill it partway through every single time. Super annoying. The 300ml tank on the C30 gives me a full 60-second stream at max pressure without stopping. That's exactly what I needed. My whole flossing routine takes under a minute now and I actually stick to it every day because it's not a hassle anymore.

N
Nicole S.
Excellent water tank size

The tank capacity is just right for a complete, thorough flossing session. I don't have to refill it halfway through like my old portable flosser.

R
Ryan P.
Truly waterproof!

I always use my water flosser in the shower to avoid making a mess at the sink. This IPX7 rating holds up perfectly, no issues at all.

C
Chloe M.
Game changer for my braces

If you have braces, you NEED the C30. It cleans around the brackets so fast and efficiently. Saves me so much time every night.

D
David H.
Sleek design and easy to hold

Unlike other bulky water flossers, this C30 has a very ergonomic design. It fits comfortably in my hand and looks beautiful on my bathroom counter.

K
Kevin D.
Good quality, just wish it included a pouch

The flosser feels very premium and works perfectly. My only minor complaint is that I wish it came with a little travel pouch to keep the nozzles together during trips. Still a solid product!

S
Sophia W.
Perfect for sensitive gums

I always bleed when using traditional string floss, but the sensitive mode on this C30 is incredibly gentle while still removing all the food particles.

B
Brandon T.
My teeth have never felt cleaner!

I was a bit skeptical about switching to a cordless flosser, but the C30 is amazing. The water pressure is strong but gentle enough on my sensitive gums. Highly recommend!

G
Grace L.
Great pressure, but a bit of a learning curve for elderly

Bought this C30 for my mom. The smart tracking and pressure are excellent, but the mode switching button took her a few days to get used to because she kept pressing it by mistake while flossing. Once she got the hang of it, she loved it.

M
Marcus R.
Incredible battery life

I've been using this usmile C30 flosser twice a day for three weeks now, and I still haven't needed to recharge it. The USB-C charging is super convenient.

S
Spencer Sohler

First time using a water flosser, the instructions were easy to understand and not complicated. It’s easy to use and clean which is great.

N
Natalie C.
Removes buildup I didn't know was there

I've been flossing with string floss for years and thought I was doing fine. After the first week with the C30 I noticed my teeth just felt... cleaner? Smoother near the gumline. My next dental checkup my hygienist actually commented that my gum health had improved. I'd tried a different brand water flosser before but found it too harsh. The C30 on medium settings hits a sweet spot of effective but not aggressive.

T
Thomas B.
5 pressure levels actually make a difference

I've used cheaper water flossers that claim adjustable pressure but there's barely any noticeable difference between settings. The C30 actually has a real range. Level 1 is almost like a gentle rinse and Level 5 gives you a proper deep clean. I use Level 2 on my gums and bump up to 4 for cleaning between my back teeth. Having that flexibility is genuinely useful, not just a marketing bullet point.

J
Jessica B.
Smart tracking actually works

The smart feature that monitors your flossing coverage is great. It gives me peace of mind knowing I didn't miss any tight spots in the back.

D
Derek W.
Works great in the shower

I was a little nervous about using an electric device in the shower but the IPX7 waterproof rating is legit. I've been using it in the shower every morning for about a month and zero issues. Makes my routine so much faster since I can floss while rinsing off. The battery lasts way longer than I expected too.I charge it maybe once every few weeks.

L
Laura E.
Very premium unboxing experience

Everything from the packaging to the build quality of the C30 flosser screams high-end. Would make a fantastic gift for someone.

J
Jason M.
No plug adapter included

Keep in mind that it comes with the Type-C charging cable, but no wall brick. Not an issue for me since I have plenty, but good to know.