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Philips Sonicare Cordless Power Flosser 3000

By Philips Sonicare · Water Flossers · Health & Lifestyle · More from Philips Sonicare

  • 250ml water tank for full 60-second clean
  • 2 modes (Clean, Deep Clean) and 3 pressure settings
  • Quad Stream technology with X-shaped 4-stream tip
  • Up to 40 days battery life on one charge
  • Removes up to 99% of plaque below the gumline

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Summary

A cordless all-in-one water flosser that its testers rate as the strongest portable they have tried. Check which order number and whether a wall adapter is included before buying, because battery claims and box contents vary across the family.

Strengths

  • Wirecutter’s portable water-flosser pick after testing 21 models since 2018.
  • Sits first of 16 water flossers in Consumer Reports’ tested range.
  • Testers describe a stream strong enough to rival corded countertop units.
  • IPX7 body works in the shower and the reservoir is dishwasher-safe.
  • Works on plain water or diluted mouthwash, with no cleaning cartridges to buy.
  • Two-year warranty, a year longer than the budget cordless pick.

Weaknesses

  • Filled weight of about 1.3 lb and a 250 ml tank; it is heavier and needs refilling more than a countertop model.
  • Only 2 modes, 3 intensities and 2 nozzles in the box.
  • The nozzle rotation is stiff and awkward, which testers say could trouble anyone with dexterity issues.
  • Battery life is documented inconsistently, from 14 days in one Philips document to 40 days in another.
  • The power button sits where it is easy to press by accident.
  • No textured grip, so the body feels slippery when wet.

Verified specifications

Typecordless handheld oral irrigator; the reservoir, pump and battery all sit in the handle.
FamilyUS order numbers HX3826/21, HX3826/23, HX3826/24 and HX3828/22 (dual pack), sharing one 3000 Series manual; the HX3806/21 predecessor is discontinued.
ModesClean (constant flow) and Deep Clean; 3 pressure settings.
Tank250 ml removable reservoir; Wirecutter measures usable capacity at 8 oz.
Runtime per fill60 seconds in Clean, up to 90 seconds in Deep Clean.
Nozzlesan X-shaped Quad Stream tip that splits the flow into 4 jets, plus a standard single-stream tip; nozzles rotate 360°.
Timera one-minute timer that pauses the flow every 15 seconds; the unit shuts off after 2 minutes.
Batteryrated up to 40 days on one 1-minute session a day; the HX3826/31 datasheet says up to 14 days per charge.
ChargingUSB-A to small-plug cable, up to 8 hours.
Water resistanceIPX7.
Noise77 dB in use (Electric Teeth measurement).
Dimensions30.8 × 6.5 × 6.5 cm (12.1 × 2.6 × 2.6 in) with the nozzle; 289 g (9.6 oz) dry.
Weight filled1.3 lb (about 0.59 kg) per Wirecutter.
In the box (datasheet)F1 Standard nozzle, F3 Quad Stream nozzle, travel bag, USB charging cable and USB wall adapter.
Warranty2-year limited.
Full research notes and sources

Cleaning performance and the cordless trade-off

The stream is the selling point. Wirecutter calls it impressively strong and says it rivals its countertop picks, and Consumer Reports describes the Quad Stream tip as one strong center jet with 4 weaker jets around it. VICE’s reviewer used it against string floss and never found the jet painful or bleeding.

Philips’ headline numbers are its own studies, not third-party measurements. The “removes up to 99% of plaque below the gumline” claim is in-vitro work at 4-6 mm depth in Clean mode at setting 3, and “up to 150% more effective vs floss” is a two-week study with the Quad Stream nozzle. No tester publishes stream pressure, flow rate or plaque mass removed for this model.

Everything hangs off the handle, which is the trade-off. It holds 250 ml (8 oz), weighs about 1.3 lb filled, and feels wider and less nimble in the mouth than a countertop wand. Owners’ experience of the tank splits: VICE’s reviewer always finished with water left over, while one Philips store owner reports needing two fills for a complete job.

Battery life and charging

Philips documents battery life two ways. Current marketing pages claim up to 40 days of flossing on one 1-minute session a day, while the official HX3826/31 datasheet says up to 14 days per charge. Older owners are less generous: 2022 reports from the predecessor HX3806 put it at about 14 days between charges, and one UK owner saw about 4 days.

Charging is slow for a rechargeable appliance. The included wall adapter is not guaranteed: Philips US hosts a support question about a missing power adapter, though Consumer Reports reports a charging brick in the US box.

Nozzles and running costs

Nozzles are the only routine consumable. Replace them every 6 months or when damaged, and the manual’s cleaning loop is warm water with 1-2 tablespoons of white vinegar run through the unit. Only Philips Sonicare Power Flosser nozzles fit.

A 2-pack of replacement nozzles runs about $13-15 at Philips US. Electric Teeth modeled three-year ownership at about $102.50 versus $110 for the rival Waterpik Cordless Advanced, with Sonicare nozzles around $6.50 each against $5 for Waterpik tips. There is no subscription and no cartridge.

Is it worth it?

Below $70 this is straightforward value: the best-tested portable design, a 2-year warranty, and a tank and weight penalty shared by every cordless flosser. Philips US direct lists the black HX3826/23 at $69.96 and the colors at $79.96, and Walmart lists it at $80. The Costco two-pack at $100 (down from $130) is the standout, at roughly $50 a unit.

Above $100 for a single unit, the arithmetic changes. Wirecutter’s countertop Waterpik Ion Professional at $100 brings 10 pressure settings, a 20 oz tank and a 3-year warranty, and Countertop units do not make you refill mid-clean. Buy the cordless if shower use and portability are the point; otherwise the money buys more capacity elsewhere.

Which model this is

This page covers the current US Cordless Power Flosser 3000 family, sold under order numbers HX3826/21, HX3826/23, HX3826/24 and the HX3828/22 dual pack, all sharing the 3000 Series manual and nozzle platform. The discontinued HX3806/21 is the earlier generation. The Amazon listing referenced here is ASIN B0CTXBQGQZ. Do not confuse it with the corded Philips Sonicare Power Flosser 3000 (HX3711/20), a countertop machine with more settings and a larger tank, or with the collapsible Compact Flosser 1000 (HX3333).

Sources

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Independent reviews:

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