Waterpik Electric Toothbrush & Water Flosser Combo Units Reviewed

Waterpik is the undisputed leader in the electric toothbrush and water flosser combo space. While other companies dabble in combo products, Waterpik has dedicated years of research and development to perfecting the concept. They offer the only ADA-accepted combo devices on the market and hold key patents on integrated brush-flosser technology that no competitor can replicate.

We have tested every current Waterpik combo model to help you choose the right one for your needs and budget. From the innovative Sonic-Fusion line that lets you brush and floss simultaneously to the Complete Care series that pairs separate tools on a shared base, here is our complete breakdown.

The Waterpik Combo Lineup

Editor's Choice
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Waterpik Sonic-Fusion 2.0 (SF-04)

Best Integrated Combo — $149

★★★★★ 4.8/5
Pros:
  • Only device that brushes and flosses simultaneously
  • Patented integrated technology
  • 3 modes: brush only, floss only, brush + floss
  • ADA Accepted for both functions
Cons:
  • Brush head larger than standard sonic heads
  • Not travel-friendly
  • Learning curve for simultaneous mode
Key Features: 31,000 sonic strokes per minute, integrated water channel through brush head, 10 pressure settings (10-100 PSI), 15 oz reservoir, 2-minute timer with quadrant pacer, includes 2 Fusion brush heads and 2 standard flosser tips.
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Waterpik Complete Care 9.5 (CC-01)

Best Separate-Handle Combo — $119

★★★★★ 4.7/5
Pros:
  • Full-featured oscillating toothbrush
  • Largest reservoir in the lineup
  • 10 pressure settings
  • 7 tips included
Cons:
  • Two separate handles to manage
  • Larger footprint than Sonic-Fusion
  • Brush motor not as strong as Oral-B iO
Key Features: Oscillating-rotating toothbrush, full-size countertop flosser with 22 oz reservoir, 10 pressure settings, 2-minute brush timer, includes 5 flosser tips and 2 brush heads.
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Budget Pick
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Waterpik Complete Care 5.0 (WP-861)

Most Affordable Combo — $79

★★★★☆ 4.4/5
Pros:
  • Best value in the lineup
  • Sonic brush with decent power
  • Reliable flossing performance
  • Compact shared base
Cons:
  • Only 5 pressure settings
  • Smaller reservoir
  • Brush feels less premium
Key Features: Sonic toothbrush, countertop flosser with 15 oz reservoir, 5 pressure settings, 2-minute timer, includes 5 flosser tips and 2 brush heads.
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Full Lineup Comparison

SpecSonic-Fusion 2.0Complete Care 9.5Complete Care 5.0
Price$149$119$79
DesignIntegratedSeparate handlesSeparate handles
Brush TypeSonicOscillatingSonic
Pressure Settings10105
Reservoir15 oz22 oz15 oz
Simultaneous Mode
ADA Accepted
Included Tips477

Understanding the Sonic-Fusion Technology

The Sonic-Fusion represents a genuine innovation in oral care. Waterpik engineered a single handle that houses both a sonic toothbrush motor and a water delivery system. A thin channel runs through the brush head, directing a pressurized stream of water between the bristles while you brush. The result is simultaneous brushing and flossing in a single pass.

This technology is patented by Waterpik, which is why no other brand offers anything similar. The practical benefit is enormous: instead of a 4-minute routine consisting of 2 minutes of brushing followed by 2 minutes of flossing, you accomplish both in a single 2-minute session. For people who regularly skip flossing due to time constraints, this can be transformative.

The brush head is slightly larger than a standard sonic brush head because it must accommodate the water channel. Some users with smaller mouths find this a minor drawback, but most adapt quickly. The three-mode switch on the handle lets you choose brush only, floss only, or the combined mode depending on your needs.

Complete Care: The Traditional Approach

The Complete Care line takes a different approach. These units pair a standalone electric toothbrush with a standalone water flosser on a shared base station. You use them sequentially: floss first, then brush. Each component is independently optimized, which means neither makes compromises for the sake of integration.

The Complete Care 9.5 features an oscillating-rotating toothbrush that fans of Oral-B will appreciate. It does not match the power of Oral-B's iO series, but it provides solid oscillating performance at a fraction of the cost when you factor in the included water flosser. The 22 oz reservoir is the largest in the lineup, providing well over a minute of continuous flossing.

The Complete Care 5.0 offers a sonic toothbrush instead of oscillating and pairs it with a slightly smaller water flosser. At $79, it is the most affordable way to get both an electric toothbrush and a water flosser from a trusted brand in one purchase.

Maintenance Tip

Clean your Waterpik reservoir weekly by filling it with a mixture of warm water and 2 tablespoons of white vinegar, running half through the flosser, letting it sit for 20 minutes, then running the rest through. This prevents mildew and mineral buildup that can affect performance.

Which Waterpik Combo Should You Buy?

Choose the Sonic-Fusion 2.0 if you value time efficiency and want the convenience of brushing and flossing in one pass. It is the most innovative option and ideal for people who struggle to maintain a separate flossing habit.

Choose the Complete Care 9.5 if you prefer an oscillating brush or want the largest reservoir for extended flossing sessions. It is also the better choice if multiple family members will share the unit, as separate handles feel more hygienic.

Choose the Complete Care 5.0 if budget is your primary concern. It delivers reliable brushing and flossing performance at the lowest price in the lineup, making it an excellent entry point.

Our Verdict

The Waterpik Sonic-Fusion 2.0 is the most impressive combo unit available. Its integrated brush-and-floss technology genuinely saves time and makes flossing effortless. However, the Complete Care 9.5 offers better individual component quality at a lower price if you do not mind using two separate handles.

Frequently Asked Questions

What is the best Waterpik combo unit? +

The Waterpik Sonic-Fusion 2.0 is the best overall combo unit. It features a unique integrated design that lets you brush and floss simultaneously through one handle, with 10 pressure settings and ADA acceptance for both functions.

How does the Waterpik Sonic-Fusion work? +

The Sonic-Fusion has a single handle that contains both a sonic toothbrush motor and a water flosser channel. Water flows through the brush head while you brush, allowing simultaneous brushing and flossing. You can also use each function independently.

Are Waterpik combo replacement parts expensive? +

Replacement brush heads for Waterpik combos cost about $8 to $12 for a 2-pack, and water flosser tips cost around $5 to $10 for a multi-pack. These are comparable to other electric toothbrush brands and widely available online and in retail stores.

Can two people share a Waterpik combo unit? +

Yes, the base station and reservoir are shared, but each person should have their own brush head and flosser tip. Most combo units come with multiple tips for this purpose. Color-coded tips make it easy to tell them apart.