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Panasonic Series 800 EW-DJ86 review

No. 10 of 10 in our water flossers ranking · Updated · How we rank

Our verdict: The Panasonic Series 800 EW-DJ86 ranks 10th of the 10 water flossers we compare, with 7.6 out of 10.

Panasonic Series 800 EW-DJ86

Panasonic Series 800 EW-DJ86

7.6/10

The Panasonic Series 800 EW-DJ86 is a cordless water flosser with an ultrasonic nozzle and five pressure levels. It suits people who want gum-focused cleaning between teeth and are happy to pay a premium for it.

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Why it's here

  • Ultrasonic nozzle adds to the water jet for cleaning between teeth
  • Orthodontic nozzle included for braces
  • A full tank lasts about 60 seconds of use
  • USB-C charging and a removable, dishwasher-safe tank

Keep in mind

  • Owner ratings are lower than most models here
  • Panasonic's spare nozzles are dearer than Waterpik's and harder to find
  • Priced near the top of the cordless range

Why the Panasonic Series 800 EW-DJ86 scores 7.6

Each bar shows where it places among the 10 water flossers in this guide, so a full bar is 1st of 10. How happy owners are counts for most of the score.

  • How happy owners are10th of 10
  • How many rated it9th of 10
  • How new it is5th of 10

Level with the Panasonic Series 300 EW-DJ27

The Panasonic Series 300 EW-DJ27 and the Panasonic Series 800 EW-DJ86 score the same, so either is a safe pick. The Panasonic Series 300 EW-DJ27 goes first because it leaves owners a little happier.

About the Panasonic Series 800 EW-DJ86

The EW-DJ86 is a handheld cordless flosser. A single jet of water is combined with ultrasonic technology, which Panasonic's retailers say removes up to 99.9% of plaque from treated areas. That is a manufacturer claim, not an independent test result.

The tank holds 200ml. A full tank gives about 60 seconds of use at the highest pressure level, so most people will refill once or twice during a session. There are five pressure levels, and Panasonic quotes a top pressure of up to 647 kPa. The body is rated IPX7 for water resistance.

In the box are an ultrasonic nozzle and an orthodontic nozzle for braces. Charging is by USB-C: an hour's charge gives about 10 minutes of use at the highest level. The battery is built in and cannot be swapped out, as one independent German review site points out.

What owners report about the Panasonic Series 800 EW-DJ86

We found little written owner feedback for this exact model, and most of it comes from European retailers rather than UK ones. What there is leans positive. Owners say it cleans well between the teeth and that their gums feel healthier. Some find it quicker than string floss. They also like that the five levels let them start gently, and that it is small enough to travel with.

The complaints are scattered, not a clear pattern. A few mention that the intensity and battery indicators are small. One reported needing to recharge after a few days of twice-daily use. Another independent reviewer noted the sealed battery. Reaching the back teeth takes some practice, according to owners who have got the hang of it.

There is not enough long-term feedback to say how the battery or the pump holds up after a year or more.

Who the Panasonic Series 800 EW-DJ86 suits

It suits anyone who wants a cordless flosser with an ultrasonic nozzle, particularly people with braces, thanks to the orthodontic nozzle in the box. The 200ml tank and dishwasher-safe, removable design make it easy to look after.

Look elsewhere if you want the cheapest option or the easiest spare nozzles. The COSLUS C51 costs far less, and the Waterpik Cordless Advanced has more widely available replacement tips. If you want a smaller, simpler Panasonic, the Series 300 EW-DJ27 is the entry model.

Questions about the Panasonic Series 800 EW-DJ86

Is the Panasonic EW-DJ86 any good?

Yes, for the most part. Owners report good cleaning between teeth and an easy, adjustable jet, and an independent German review site rated it very good. The downsides are a price near the top of the cordless range and a sealed battery.

Is the Panasonic EW-DJ86 waterproof?

Yes. It is rated IPX7, so it can be rinsed under running water.

How long does the Panasonic EW-DJ86 take to charge?

About one hour over USB-C. A full charge gives roughly 10 minutes of use at the highest pressure level.

Can you replace the battery in the Panasonic EW-DJ86?

No. The battery is built in and cannot be swapped by the owner, according to the independent German review site Testberichte.de.

Other water flosser picks

The other badge winners in our water flossers ranking.

All 10 water flossers, compared

  1. 1 COSLUS C50Best Choice 8.6 out of 10 Check Price
  2. 2 COSLUS C51 8.6 out of 10 Check Price
  3. 3 Waterpik Cordless Pulse 8.6 out of 10 Check Price
  4. 4 Bezvoi Mini Portable Water Flosser for Travel, 5 Modes, 6 Tips 8.5 out of 10 Check Price
  5. 5 Waterpik Cordless AdvancedBest Premium 8.2 out of 10 Check Price
  6. 6 Hangsun HOC700 8.1 out of 10 Check Price
  7. 7 Philips Sonicare Cordless Power Flosser 3000 8.0 out of 10 Check Price
  8. 8 Ordo Hydro Sonic 7.7 out of 10 Check Price
  9. 9 Panasonic Series 300 EW-DJ27 7.6 out of 10 Check Price
  10. 10 Panasonic Series 800 EW-DJ86This review 7.6 out of 10 Check Price
See the full water flossers ranking

The Panasonic Series 800 EW-DJ86 on Amazon

Panasonic Series 800 EW-DJ86

The Panasonic Series 800 EW-DJ86 is a cordless water flosser with an ultrasonic nozzle and five pressure levels. 7.6 out of 10.

Check Price on Amazon

How we score it

Every score here comes from our ranking model; no editor sets the order. Too few review sites cover water flossers for their verdicts to lead, so this ranking is led by owners. It ranks products by how happy owners are, holding back any product few owners have rated until more agree. How many rated it and how new it is only settle close calls, and value for money earns its own badge rather than a higher place. We compared 23 models for this guide before settling on these ten.

Brands can't pay to be included or to move up. We last checked these picks in October 2026.

How we rank, in full