Question 1

Which is better, Waterpik Aquarius WP-660 or Nicwell F5025 Water Flosser?

Accepted Answer

Based on our testing, the Waterpik Aquarius WP-660 scores higher overall at 8.9/10. The Waterpik Aquarius WP-660 scored 8.9/10 and the Nicwell F5025 Water Flosser scored 8.3/10 in our Best Water Flossers 2026 evaluation.

Question 2

Is the Waterpik Aquarius WP-660 worth it over the Nicwell F5025 Water Flosser?

Accepted Answer

The Waterpik Aquarius WP-660 scores 8.9/10 while the Nicwell F5025 Water Flosser scores 8.3/10. The Waterpik Aquarius WP-660 is our "Best Overall" pick in the Best Water Flossers 2026 category.

Waterpik Aquarius WP-660 vs Nicwell F5025 Water Flosser: Which to Buy?