Waterpik WP-660 vs WP-670 Water Flosser (What’s the Difference?)

Waterpik WP-660 and WP-670 are popular water flossers produced by WATERPIK. These models share several similarities that make them both excellent choices for maintaining optimal oral hygiene.

In this article, we will explore the key similarities between the WP-660 and WP-670 before delving into the specific differences that set them apart. By understanding these differences, you can choose the water flosser that best suits your individual oral care needs.


The Waterpik WP-660 and WP-670 have many common features, providing users with reliable and efficient oral care options. These shared characteristics include:

1. Water Pressure Settings: Both the WP-660 and WP-670 offer a wide range of water pressure settings. This allows users to customize their flossing experience according to their comfort level and specific oral care requirements.

2. Number of Tips: With 7 interchangeable tips included in both models, users can select the tip that suits their needs best. These tips cater to a variety of oral care needs, including standard jet tips for general flossing, orthodontic tips for those with braces, and plaque seekers for targeting plaque buildup.

3. Timer: The WP-660 and WP-670 both feature a built-in 1-minute Quadrant Pacing Timer. This timer helps users effectively allocate time to each section of their mouth, ensuring thorough and balanced cleaning.

4. Water Capacity: Both models boast a generous water capacity of 22 ounces, eliminating the need for frequent refills during use. This convenience allows for uninterrupted flossing sessions and enhances user experience.

5. Warranty: Waterpik stands behind the quality of their products, offering a 3-year warranty for both the WP-660 and WP-670. This warranty provides assurance and peace of mind to users, knowing that their investment is protected.

Now, let’s explore the key differences between the Waterpik WP-660 and WP-670, considering how these distinctions can be beneficial for individuals with specific oral care needs or conditions.

Key Difference between Waterpik WP-660 and WP-670

Waterpik WP-660 vs WP-670 Water Flosser
  1. Design and Appearance: While both models have a sleek and ergonomic design, the WP-670 stands out with an LED indicator that provides real-time feedback on water pressure levels. This feature can be particularly helpful for individuals with sensitivity concerns, allowing them to monitor and adjust the pressure more precisely.
  2. Brushing Modes: The WP-660 focuses solely on oral irrigation, while the WP-670 goes a step further by offering three distinct brushing modes—Brush, Floss, and Brush+Floss. These additional brushing modes cater to individuals who prefer a combined flossing and brushing experience, making the WP-670 an ideal choice for comprehensive oral care.
  3. Advanced Features: The WP-670 introduces advanced features not present in the WP-660. These include a magnetic holder to keep the tips organized and easily accessible, as well as an LED display that provides clear visibility of the selected mode and battery status. These features can enhance convenience and usability, especially for those who value organized storage or prefer visual feedback during their oral care routine.
  4. Weight: Although the weight difference between the WP-660 and WP-670 is minimal, with the WP-670 weighing slightly more at 1.5 pounds compared to the WP-660’s weight of approximately 1.3 pounds, it could be a consideration for individuals who prioritize portability or have specific needs due to physical limitations.
  5. LED Indicator: The inclusion of an LED indicator in the WP-670 allows users to monitor water pressure levels visually. This feature is beneficial for individuals with sensitivity issues or those who require precise control over water pressure during their flossing routine.
  6. Price: The WP-670 is generally priced slightly higher than the WP-660, mainly due to its additional features and functionalities. Individuals who prioritize advanced features and brushing modes may find the higher price worthwhile for a more comprehensive oral care experience.
  7. Availability: Availability of the WP-660 and WP-670 may vary depending on location and retailers. It is recommended to check with authorized Waterpik retailers or reputable online platforms to ensure availability in your area.

By understanding these key differences, you can make an informed decision and select the Waterpik model that best suits your oral care needs, considering factors such as sensitivity concerns, desired brushing modes, convenience, and budget.


In conclusion, the Waterpik WP-660 and WP-670 water flossers share several common features that make them excellent choices for maintaining optimal oral hygiene. However, the key differences outlined above cater to specific needs and preferences, such as sensitivity, desire for additional brushing modes, convenience features, and budget considerations. Evaluate your individual requirements and prioritize the features that matter most to you when selecting the ideal water flosser for your oral care routine

FAQs (Frequently Asked Questions)

  1. Can I use the tips from the WP-660 with the WP-670? Yes, both the WP-660 and WP-670 models are compatible with the same interchangeable tips. You can use the tips from one model with the other without any issues.
  2. Are the brushing modes in the WP-670 effective replacements for traditional brushing with a toothbrush? While the WP-670 offers additional brushing modes, it is important to note that these modes are designed to complement regular toothbrushing rather than replace it entirely. For comprehensive oral hygiene, it is still recommended to incorporate regular brushing with a toothbrush into your oral care routine.
  3. Do the advanced features in the WP-670 require any additional maintenance? The advanced features of the WP-670, such as the magnetic holder and LED display, do not require specific maintenance. However, it is important to follow the general cleaning and care instructions provided by Waterpik to keep the device in optimal condition.
  4. Is the weight difference between the WP-660 and WP-670 significant? The weight difference between the WP-660 and WP-670 is minimal. While the WP-670 weighs slightly more at 1.5 pounds compared to the WP-660’s weight of approximately 1.3 pounds, it should not significantly impact portability or ease of use.
  5. Who would benefit from the LED indicator in the WP-670? The LED indicator in the WP-670 can be particularly beneficial for individuals with sensitivity concerns. It allows for precise monitoring and adjustment of water pressure levels, providing a more tailored and comfortable flossing experience.
  6. Is the higher price of the WP-670 justified by its additional features? The higher price of the WP-670 reflects the inclusion of advanced features such as brushing modes, a magnetic holder, and an LED display. If these features align with your oral care needs and preferences, the higher price may be justified for a more comprehensive and convenient flossing experience.
  7. Where can I purchase the Waterpik WP-660 and WP-670? You can find the Waterpik WP-660 and WP-670 models at authorized Waterpik retailers, dental supply stores, or reputable online platforms that offer oral care products. It is advisable to purchase from authorized sellers to ensure product authenticity and warranty coverage.

Consider these FAQs along with the key differences explained earlier to make an informed decision about which Waterpik model best suits your oral care needs and preferences.

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Last update on 2024-05-28 / Affiliate links / Images from Amazon Product Advertising API

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