Waterpik
Waterpik Aquarius WP-660
$99.99Cheaper
Released 2013
Best Water Flossers · head-to-head
Waterpik Aquarius WP-660 vs Philips Sonicare Power Flosser 3000 HX3806
A sourced, side-by-side comparison. Waterpik Aquarius WP-660 is cheaper at $99.99. Every spec and price links to its source.
Philips
Philips Sonicare Power Flosser 3000 HX3806
$109.95
Released 2022
Which is better: the Waterpik Aquarius WP-660 or Philips Sonicare Power Flosser 3000 HX3806?
On the specs we track, they're closely matched. The Waterpik Aquarius WP-660 is the cheaper at $99.99.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Waterpik Aquarius WP-660 | Philips Sonicare Power Flosser 3000 HX3806 |
|---|---|---|
| US price | $99.99 | $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).
What's the difference between the Waterpik Aquarius WP-660 and Philips Sonicare Power Flosser 3000 HX3806?
Where the two actually differ on the specs we track (5 of 7). Matching specs are omitted.
- Type: Waterpik Aquarius WP-660 countertop vs Philips Sonicare Power Flosser 3000 HX3806 cordless
- Tank capacity (ml): Waterpik Aquarius WP-660 651 vs Philips Sonicare Power Flosser 3000 HX3806 250
- Pressure settings: Waterpik Aquarius WP-660 10 vs Philips Sonicare Power Flosser 3000 HX3806 3
- Tips included: Waterpik Aquarius WP-660 7 vs Philips Sonicare Power Flosser 3000 HX3806 2
- Power: Waterpik Aquarius WP-660 corded vs Philips Sonicare Power Flosser 3000 HX3806 rechargeable