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COSLUS CX51 Portable Water Flosser for Teeth

COSLUS CX51 Portable Water Flosser for Teeth

4.6· 242 ratings

Best price now

$29.99at TargetObserved Nov 3, 2026, 4:33 PM

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Our take on the COSLUS CX51 Portable Water Flosser for Teeth

The COSLUS CX51 is a cordless, rechargeable water flosser with an IPX7 waterproof body, so it can be used at the sink or in the shower. It ships with four replacement tips and charges in about 3 hours for up to 30 days of use. At $29.99 at Target as of November 4, 2026, it sits at the low end of what cordless water flossers typically cost.

Best forFirst-time water flosser buyersShower and sink useTravel and small bathroomsBraces and tight-gap cleaning
Pros
  • IPX7 waterproof, safe for shower use
  • Four replacement tips included
  • Up to 30 days per charge
  • Cordless and compact for travel
  • Low price for a rechargeable model
Cons
  • Charger adapter not included
  • Only one pressure mode on this model
  • No travel case in the box
  • Battery life shrinks with heavy daily use

COSLUS CX51 Portable Water Flosser for Teeth prices at every store

  • TargetNew

    Availability unknown

    $29.99Observed Nov 3, 2026, 4:33 PM
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Also available at

  • WalmartCheck price at Walmart

COSLUS CX51 Portable Water Flosser for Teeth price history

Lowest price we've seen: $29.99 on Nov 3 at Target. Tracked across 1 store since Nov 3.

What reviewers say

Owners rate the CX51 well at 4.6 out of 5 from 242 ratings, with most praise going to its value and ease of use. Complaints tend to focus on pressure and the missing wall adapter.

Pros
  • Good value for the price
  • Easy to hold and fill
  • Holds a charge for weeks
  • Useful for braces and tight spaces
Cons
  • Water pressure can feel weak or harsh
  • No adapter in the box
  • Reservoir needs refilling mid-clean

About the COSLUS CX51 Portable Water Flosser for Teeth

COSLUS CX51 Cordless Water Flosser for efficient and long-lasting cleaning, IPX7 waterproof design is safe to use in the shower, at the sink, or during night care. Fully sealed leak-proof construction ensures durability and easier cleaning after meals. Powerful Rechargeable Battery and Power Indicator. Charges in just 3 hours for up to 30 days of use. Soft-touch matte finish with ergonomic non-slip grip provides a firm and comfortable grip for adults, seniors and teens. Rugged construction ensures a three-year lifespan, making it a reliable companion for long-term health. -Waterproof grade: IPX7 -Brand: COSLUS -Color:Black / pink / black Green -Material:ABS -Size:8.20X6.83X21.60cm/3.22X2.68X8.49in -Package:1 x COSLUS CX51 Water Dental Flosser;4 x Replacement Heads;1 x User's Manual;1 x Charging Cord (Note: Adapter not included)

Specifications

actual_color
BlackSource
color
BlackSource

Questions and answers

Is the COSLUS CX51 worth it?
At $29.99 at Target as of November 4, 2026, it is a low-cost way to try water flossing. It covers the basics: rechargeable, waterproof and four tips included.
How does it compare with a countertop water flosser?
The CX51 is cordless and portable but has a smaller reservoir and one pressure setting. Countertop units give stronger, adjustable pressure but need a power outlet and take up counter space.
How long does the battery last?
COSLUS claims up to 30 days per charge and about 3 hours to recharge. Expect fewer days if you floss at full pressure several times a day.
What comes in the box?
One CX51 flosser, four replacement heads, a charging cord and a user manual. The charging adapter is not included, so you need your own USB wall plug.
Can I use it in the shower?
Yes. The IPX7 rating means it can be splashed and rinsed, and COSLUS lists shower use as fine.
When is it cheapest?
The best new price seen is $29.99 at Target as of November 4, 2026, with one store listing it new. Water flossers often drop during back-to-school and holiday sales.
Where is the COSLUS CX51 Portable Water Flosser for Teeth cheapest?
At Target, for $29.99, as of our latest check.
What do buyers say about the COSLUS CX51 Portable Water Flosser for Teeth?
Rated 4.6 out of 5 from 242 ratings.
Where can I buy the COSLUS CX51 Portable Water Flosser for Teeth?
2 stores we checked sell it, including Target, Walmart.

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