Rank #1 in Best Water Flosser 2026: 10 Ranked, and Why the Cheapest Wins
Hangsun HOC700 Cordless Water Flosser, 300ml, 6 Tips
Price and rating as shown on Amazon when we collected them. Both change.
The Hangsun HOC700 is number one in this guide, and it is one of the cheapest models on it: £24.99, 4.3 out of 5 from 29,039 ratings. Only one other flosser here carries more ratings, and that one costs less again. What the listing describes is a cordless, rechargeable unit with a 300ml detachable tank, three pressure modes (Normal, Soft and Pulse), six colour-coded jet tips including an orthodontic tip for brace wearers and a periodontal tip, IPX7 waterproofing, a four-hour charge time and a 36-month warranty.
The number worth stopping on is the tank. Hangsun states 300ml and claims "a full, uninterrupted flossing session in one fill", but the listing never says how many seconds that is. The £35.99 Waterpik Pulse elsewhere in this guide does give both figures — a 450ml reservoir and "up to 45 seconds of flossing time" — so the largest tank on the page is empty in three-quarters of a minute, while the Hangsun's 300ml cannot be converted into minutes from anything its own listing says. The rating breakdown adds to 100: 63 five-star, 20 four-star, 8 three-star, 3 two-star and 6 one-star. Everything on this page comes from the Amazon listing, not from testing we have carried out.
How those 29,039 ratings break down
An average hides its own shape. This is the spread behind the 4.3 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Price | £24.99 |
|---|---|
| Rating | 4.3 out of 5 from 29,039 ratings |
| Tank volume | 300ml, detachable |
| Pressure modes | 3 — Normal, Soft and Pulse |
| Jet tips | 6 supplied, colour-coded (3 classic, 1 orthodontic, 1 periodontal, 1 tongue scraper) |
| Charging | Full charge in 4 hours from any 5V1A adapter, power bank or laptop (adapter not included) |
| Waterproofing | IPX7, described in the listing as safe to use in the shower |
| Warranty | 36 months (listed as a 3-year manufacturer warranty) |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“This Hangsun water flosser has been a real game changer for me. My dental hygienist recommended using a water flosser, but until now, I'd only really come across the larger countertop versions.I love how compact and portable this one is. The water tank holds just the right amount for a single use, it's rechargeable, straightforward to use and does a really effective job. My teeth feel wonderfully clean afterwards—almost like that fresh-from-the-dentist feeling!I honestly never thought I'd say this, but I actually look forward to flossing now. I've been so pleased with it that I've even bought three more as gifts!”
Verified purchase“First time using a water flosser & must admit I'm very impressed. It's so easy to navigate this little device. Charge it for 4 hours and it's good to go for quite some time. The pressure is very high so start off with soft if you're new to it. First time I used this I nearly flooded my bathroom so it does take a bit of finesse but you get the hang of it after a few times. The tank gives you about 30 60 seconds depending on the mode you're on. Overall great product and would highly recommend.”
What it is up against
The rivals it was ranked against in Best Water Flosser 2026: 10 Ranked, and Why the Cheapest Wins.
Questions people ask
How big is the water tank on the Hangsun HOC700?
300ml, and it detaches for filling. Hangsun calls it extra-large and says it delivers a full, uninterrupted flossing session in one fill, but the listing does not say how many seconds of flossing that is.
How many pressure settings does it have?
Three: Normal, Soft and Pulse. The listing recommends first-time users always start on Soft.
What tips are included?
Six colour-coded tips: three classic jet tips for daily use, one orthodontic tip for brace wearers, one periodontal tip and one tongue scraper tip.
How long does the HOC700 take to charge?
Four hours for a full charge, from any 5V1A adapter, power bank or laptop. The adapter itself is not included.
Can I use it in the shower?
The listing gives the HOC700 an IPX7 waterproof rating and says that makes it safe to use in the shower.
What warranty does Hangsun offer?
36 months. The bullet describes it as Hangsun's 36-month after-sale service and the specifications list a 3-year manufacturer warranty.
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