1 / 7Waterpik Cordless Pulse WF-20 Water Flosser, White
WF-20 White: Waterpik Cordless Pulse is a rechargeable, battery-powered water flosser with two tips, low and high settings, and a removable 6 oz reservoir. Its compact cordless format is suited to travel and shower use, though customer feedback raises concerns about battery life and durability.
At a glance
- Two Classic Jet tips and low/high pressure settings are listed for everyday flossing.
- The removable 6 oz reservoir is claimed to provide up to 45 seconds of flossing per fill.
- Rechargeable battery and shower use make the cordless design portable.
- The listed USB-C to USB-A charging cable does not include a wall adapter.
Reference price: $80.00
Price checked: 13 Nov 2026
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Pros and cons
Pros
- Cordless rechargeable design can suit travel, smaller bathrooms and shower use.
- Two tips and two pressure settings offer a choice for routine flossing.
- The removable reservoir is listed as top-rack dishwasher safe.
Cons
- The 6 oz reservoir is listed for up to 45 seconds of flossing per fill, so longer sessions may require refilling.
- A wall adapter is not included with the stated charging cable.
Technical specifications
14 specifications| Brand | Waterpik |
|---|---|
| Model | Cordless Pulse Water Flosser |
| Power configuration | Battery Powered |
|---|---|
| Battery | 1 Lithium Ion batteries required. (included) |
| Charging | USB-C to USB-A charging cable (wall adapter not included) |
| Pressure settings | 2 safe and effective settings (low/high) |
|---|---|
| Reservoir capacity | 6 oz |
| Maximum floss time per fill | up to 45 secs floss time |
| Dimensions listed | 9.4 x 6.4 x 30.2 centimetres |
|---|---|
| Weight listed | 0.65 Pounds |
| Colour | White |
|---|---|
| Waterproof use | waterproof for shower use |
| Reservoir cleaning | top-rack dishwasher safe |
| Warranty claim | Limited 2-year manufacturer |
What to know before buying
Listing details to confirm
The listing includes different dimension and weight descriptions, and describes the two tips as both Classic Jet and Classic tips. Treat these details as inconsistent rather than settled, and confirm the selected listing if exact measurements or tip naming matter. Customer feedback also reports battery-life, reliability and durability concerns, which are user reports rather than established defects.
Who is it for?
A good fit for
- People wanting a rechargeable cordless water flosser for travel or shower use.
- Buyers who value two pressure settings and two tips for everyday cleaning.
Less suited to
- Buyers who need a wall adapter in the box.
- Anyone prioritising proven long-term battery life or durability, given the concerns reported in customer feedback.

Customer reviews on Amazon
- 5 stars
65% 65% - 4 stars
16% 16% - 3 stars
7% 7% - 2 stars
4% 4% - 1 star
8% 8%
Customer feedback highlights effective cleaning of teeth and gum lines, including a mention of precision between teeth. Reports are also mixed on reliability, and some customers describe poor battery life and units failing within months. Opinions on size and value differ. These reports matter for a cordless rechargeable model intended for travel, where reliable charging and continued operation are important, but they do not establish a product defect.
Positive themes
- Customers describe effective cleaning of teeth and gum lines.
Negative themes
- Some customers report that the battery does not stay charged and that units break within months.
Mixed feedback
- Reports differ on reliability, size and whether the performance justifies the cost.
Frequently asked questions
What comes with the Waterpik Cordless Pulse?
The listing claims two flossing tips and a USB-C to USB-A charging cable. It says the wall adapter is not included. Confirm the selected listing for the exact tip description.
How much water does the reservoir hold?
The stated capacity is 6 oz, with up to 45 seconds of flossing time per fill.
Can it be used in the shower?
The listing describes the flosser as waterproof for shower use.
Does it have different pressure settings?
Yes. The listing specifies two settings, low and high.

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