Waterpik Aquarius Water Flosser WP-660 vs Waterpik Sonic Fusion 2.0
Verdict: The products serve fundamentally different purposes: the Aquarius WP-660 is a dedicated water flosser while the Sonic Fusion 2.0 combines sonic brushing with flossing. The Aquarius wins on value and focused flossing performance. The Sonic Fusion 2.0 adds brushing capability but at higher cost and with more bulk. These are oral care appliances outside standard electronics review sources so no RTINGS or Notebookcheck data applies.
Winner: Waterpik Aquarius Water Flosser WP-660
Waterpik Aquarius Water Flosser WP-660: 7.5/10
Waterpik Sonic Fusion 2.0: 6.5/10
Spec-by-spec comparison
| Waterpik Aquarius Water Flosser WP-660 | Waterpik Sonic Fusion 2.0 | |
|---|---|---|
| Type | Countertop water flosser | Countertop water flosser |
| Includes Sonic Toothbrush | No | Yes |
| Pressure Settings | — | — |
| Tank Capacity | — | — |
Waterpik Aquarius Water Flosser WP-660
What works
- 10 pressure settings for customizable cleaning
- Includes 7 tips for multiple users
- 2-minute timer with 30-second quadrant pacing
What doesn't
- Larger countertop footprint than portable models
- Requires electrical outlet for operation
Waterpik Sonic Fusion 2.0
What works
- Combines sonic brushing and water flossing in one device
- 5 brushing modes plus 10 flossing pressures
- Includes 4 flosser tips and 2 brush heads
What doesn't
- Higher price than dedicated flossers
- Bulkier handle due to dual functionality
Bottom line
Our pick: Waterpik Aquarius Water Flosser WP-660.
View full comparison on GoodPickr
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