When choosing between the Waterpik ION and Waterpik Aquarius, the decision often comes down to convenience, design, and feature preferences. Both are ADA-accepted and clinically proven to improve gum health, but their differences make each one better suited for specific users. Below, we provide a detailed comparison to help you choose the model that best fits your lifestyle and oral care routine.
- ADVANCED WATER FLOSSING: Aquarius is a fully featured water flosser featuring enhanced pressure with 10 settings for a c…
- EASY TO USE: Features a large reservoir for 90+ seconds of use, no refilling required. Small maneuverable flossing wand …
- DENTIST RECOMMENDED: Waterpik is the #1 water flosser brand recommended by dental professionals and the first water flos…
- FULL PERFORMANCE CORDLESS WATER FLOSSER: Compact, rechargeable, and no outlet needed, ION features 10 settings, 90+ seco…
- SMALL AND PORTABLE: Waterpik ION Professional is ideal for small spaces, eliminates cord clutter, and is easy to store w…
- DENTIST RECOMMENDED: Waterpik is the #1 water flosser brand recommended by dental professionals and the first water flos…
Key Takeaways
- ION: Cordless, compact, 4-week rechargeable battery, ideal for portability.
- Aquarius: Countertop, plug-in, advanced features like massage mode and timer, great for home use.
- Both: 10 pressure settings, large water reservoirs, up to 99.9% plaque removal, interchangeable tips, and 3-year warranties.
Design and Build Quality
Waterpik ION
- Cordless, rechargeable lithium-ion battery.
- 30% smaller than countertop models.
- Magnetic inductive charging system.
- Weighs only 1.3 lbs.
Waterpik Aquarius
- Classic countertop design.
- Must remain plugged in during operation.
- Slightly larger footprint with integrated tip storage.
- Weighs 1.46 lbs.
✅ Verdict: If counter space and portability are priorities, the ION is superior. For a dedicated home setup, Aquarius holds the edge.
Water Reservoir Capacity
- ION: 22 oz (651 ml) → 90+ seconds of continuous flossing.
- Aquarius: 20 oz (591 ml) → also delivers 90+ seconds.
Both eliminate the need for mid-session refills.
Pressure Settings and Water Pulses
- Both: 10 settings, ranging from 10–100 PSI.
- ION: 1300 pulses per minute.
- Aquarius: 1400 pulses per minute.
While Aquarius is slightly stronger on paper, both deliver equally effective cleaning performance.
Interchangeable Tips
- ION: 6 tips (classic, orthodontic, plaque seeker, pik pocket, implant denture).
- Aquarius: 7 tips (all of the above plus a toothbrush tip).
✅ Verdict: Aquarius offers one extra tip option for those who want brushing + flossing in one device.
Noise Level
- ION: Quieter due to compact motor design.
- Aquarius: Noticeably louder, typical of countertop units.
Battery Life vs Power Source
- ION: Rechargeable battery lasting 4 weeks per charge.
- Aquarius: Must be plugged in at all times.
✅ Verdict: The ION is unmatched in cordless convenience.
Additional Features
- ION: Simple, no-frills operation.
- Aquarius: Hydro-pulse massage mode, LED indicator lights, 1-minute timer with 30-second pacer.
✅ Verdict: Aquarius wins for advanced features.
Price Comparison
- ION: Around $90.
- Aquarius: Around $110.
Considering cordless freedom, the ION offers better value.
Head-to-Head Feature Comparison
| Feature | Waterpik ION | Waterpik Aquarius |
|---|---|---|
| Pressure Range | 10–100 PSI | 10–100 PSI |
| Pulses per Minute | 1300 | 1400 |
| Reservoir Capacity | 22 oz (651 ml) | 20 oz (591 ml) |
| Tips Included | 6 | 7 |
| Massage Mode | No | Yes |
| Timer/Pacer | No | Yes |
| Rechargeable Battery | Yes (4 weeks) | No (plug-in only) |
| Charging | Magnetic inductive base | Not applicable |
| Weight | 1.3 lbs | 1.46 lbs |
| Warranty | 3 years | 3 years |
Similarities Between ION and Aquarius
- 10 adjustable pressure settings.
- Large reservoirs providing 90+ seconds of use.
- Compatible with all Waterpik tips.
- 360-degree rotating tip for easy access.
- ADA Seal of Acceptance.
- Clinically proven to remove up to 99.9% of plaque.
- Backed by a 3-year warranty.
Which One Should You Choose?
- Choose ION if you value a cordless design, quieter operation, and maximum portability without sacrificing performance. Perfect for travelers, small bathrooms, or those who prefer minimal clutter.
- Choose Aquarius if you want massage mode, a built-in timer, and a countertop system that never requires recharging. Best for households that prioritize advanced features over portability.
Final Verdict
Both models are outstanding choices, but the Waterpik ION edges ahead for its balance of performance, portability, and value. The Aquarius remains a powerhouse with extra features, making it the ideal pick for those who prefer a stationary, feature-rich countertop unit.
In either case, investing in a Waterpik is a proven way to improve oral hygiene, reduce plaque buildup, and promote healthier gums.