Best Water Flossers · head-to-head
Waterpik Aquarius WP-660 vs Philips Sonicare Power Flosser 3000 HX3806
A sourced, side-by-side spec comparison. Waterpik Aquarius WP-660 is cheaper at $99.99. Every spec and price links to its source.
Side by side
| Waterpik Aquarius WP-660 | Philips Sonicare Power Flosser 3000 HX3806 | |
|---|---|---|
| US price | $99.99 (MSRP $99.99 (frequently on sale ~$59.99) on official Waterpik store) | $109.95 (Philips suggested retail price) |
| Brand | Waterpik | Philips |
| Released | 2013 | 2022 |
| type | countertop | cordless |
| tank capacity ml | 651 | 250 |
| pressure settings | 10 | 3 |
| max pressure psi | 100 | — |
| tips included | 7 | 2 |
| power | corded | rechargeable |
| runtime min | 1.5 | — |
| release | 2013 | 2022 |
Sources — Waterpik Aquarius WP-660: waterpik.com (verified 2026-06-19). Philips Sonicare Power Flosser 3000 HX3806: usa.philips.com (verified 2026-06-19).