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- Best overall: Philips Sonicare 4100 Series Rechargeable Electric Toothbrush, Black (HX3681/23)
- Best budget: Waterpik Cordless Advanced 2.0 Water Flosser, White (WP-580)
- Best premium: Philips Sonicare 9900 Prestige Power Toothbrush with SenseIQ, Midnight Blue (HX9992/11)
- Best for countertop water flossing: Waterpik Aquarius Water Flosser, White (WP-660)
- Philips Sonicare 4100 Series Rechargeable Electric Toothbrush, Black (HX3681/23) is the straightforward pick for daily brushing and a pressure sensor.
- Waterpik Aquarius Water Flosser, White (WP-660) is a countertop flosser with 10 pressure settings and 7 included tips.
- An electric toothbrush and a water flosser perform different jobs; choosing one does not replace the other.
- Waterpik Cordless Advanced 2.0 Water Flosser, White (WP-580) suits shoppers who want a portable flosser.
- Compare included accessories, cleaning modes and counter space before choosing a Black Friday 2026 oral-care upgrade.
Philips Sonicare 4100 vs Waterpik Aquarius Black Friday shopping starts with one simple distinction: the Philips Sonicare 4100 Series Rechargeable Electric Toothbrush, Black (HX3681/23) is a toothbrush, while the Waterpik Aquarius Water Flosser, White (WP-660) is a water flosser. The two products support different parts of an oral-care routine, so the right choice depends on what you want to add or replace.
We researched and compared specs, reviews and owner feedback to create this 2026 buying guide. You’ll find the main matchup, alternatives for travel and premium routines, plus practical tips for comparing features. Best bet: choose the Philips Sonicare 4100 for brushing upgrades, the Waterpik Aquarius for water flossing, and a combo product if you want both functions in one purchase.
How We Picked
- Compared product purpose first, separating toothbrushes from water flossers and combination systems.
- Reviewed listed specifications such as cleaning modes, pressure settings, included tips and battery or reservoir details.
- Considered owner feedback themes around setup, everyday handling, storage and routine comfort.
- Prioritized products with clearly differentiated use cases, from simple daily brushing to travel and premium features.
- Checked that every recommendation offers a distinct reason to compare during Black Friday 2026 shopping.
Comparison Table
| Product | Best for | Pressure settings or cleaning modes | Included tips | Reservoir capacity |
|---|---|---|---|---|
| Philips Sonicare 4100 Series Rechargeable Electric Toothbrush, Black (HX3681/23) | Everyday electric brushing | 2 intensity settings | Not applicable | Not applicable |
| Waterpik Aquarius Water Flosser, White (WP-660) | Countertop water flossing | 10 pressure settings | 7 tips | 22 ounces |
| Waterpik Cordless Advanced 2.0 Water Flosser, White (WP-580) | Travel and compact bathrooms | 3 pressure settings | 4 tips | Portable reservoir |
| Philips Sonicare ProtectiveClean 6100 Rechargeable Electric Toothbrush, Black (HX6877/21) | More brushing customization | 3 cleaning modes; 3 intensity levels | Not applicable | Not applicable |
| Oral-B iO Series 5 Rechargeable Electric Toothbrush, Black Onyx | App-guided brushing | 5 cleaning modes | Not applicable | Not applicable |
| Waterpik Complete Care 9.0 Sonic Electric Toothbrush and Water Flosser, White (WP-950) | A combined countertop routine | 10 flosser pressure settings | Included flosser tips | 22 ounces |
| Philips Sonicare 9900 Prestige Power Toothbrush with SenseIQ, Midnight Blue (HX9992/11) | Premium connected brushing | 5 cleaning modes | Not applicable | Not applicable |
Best Picks Reviewed
#1 · Top pick
Philips Sonicare 4100 Series Rechargeable Electric Toothbrush, Black (HX3681/23)
The Philips Sonicare 4100 Series Rechargeable Electric Toothbrush, Black (HX3681/23) is the best electric toothbrush for shoppers who want simple daily brushing with a pressure sensor and 2 intensity settings.
Best for: Everyday electric brushing
- Intensity settings
- 2
- Brushing timer
- 2 minutes
- Battery life
- Up to 14 days
- Pressure sensor helps flag excessive brushing pressure.
- QuadPacer prompts help divide brushing time across the mouth.
- Simple control layout keeps the routine straightforward.
- Does not floss between teeth or include a water-flosser function.
Is the Philips Sonicare 4100 Series Rechargeable Electric Toothbrush, Black (HX3681/23) worth buying on Black Friday 2026?
Yes. The Philips Sonicare 4100 Series Rechargeable Electric Toothbrush, Black (HX3681/23) is a practical choice for everyday powered brushing, with a pressure sensor, 2 intensity settings and a 2-minute timer. Choose a separate flosser if water flossing is also a priority.
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#2
Waterpik Aquarius Water Flosser, White (WP-660)
The Waterpik Aquarius Water Flosser, White (WP-660) is the best countertop water flosser for households that want flexible cleaning, with 10 pressure settings and 7 included tips.
Best for: Countertop water flossing
- Pressure settings
- 10
- Included tips
- 7
- Reservoir capacity
- 22 ounces
- Wide pressure range supports personalized flossing comfort.
- Multiple tips suit different household users and needs.
- Reservoir is designed for a countertop routine.
- Requires counter space and access to an outlet.
Is the Waterpik Aquarius Water Flosser, White (WP-660) worth buying on Black Friday 2026?
Yes. The Waterpik Aquarius Water Flosser, White (WP-660) is a strong choice for shoppers who want a countertop water flosser with adjustable pressure. The Waterpik Aquarius Water Flosser, White (WP-660)'s 10 settings and 7 included tips make it more flexible than a basic single-user flosser.
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#3
Waterpik Cordless Advanced 2.0 Water Flosser, White (WP-580)
The Waterpik Cordless Advanced 2.0 Water Flosser, White (WP-580) is the best portable flosser for travelers and small bathrooms, with a rechargeable cordless design and 3 pressure settings.
Best for: Travel and compact bathrooms
- Pressure settings
- 3
- Included tips
- 4
- Power
- Rechargeable battery
- Cordless format is easier to pack than a countertop unit.
- Compact footprint fits smaller bathroom storage.
- Multiple tips support more than one cleaning need.
- Offers fewer pressure choices than the Aquarius countertop model.
Is the Waterpik Cordless Advanced 2.0 Water Flosser, White (WP-580) worth buying on Black Friday 2026?
Yes. The Waterpik Cordless Advanced 2.0 Water Flosser, White (WP-580) is a convenient pick for travel or limited counter space. The Waterpik Cordless Advanced 2.0 Water Flosser, White (WP-580)'s rechargeable cordless design and 3 pressure settings prioritize portability over the larger reservoir and broader controls of a countertop flosser.
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#4
Philips Sonicare ProtectiveClean 6100 Rechargeable Electric Toothbrush, Black (HX6877/21)
The Philips Sonicare ProtectiveClean 6100 Rechargeable Electric Toothbrush, Black (HX6877/21) is the best step-up Sonicare toothbrush for shoppers wanting more routine options, with 3 cleaning modes and 3 intensity levels.
Best for: More brushing customization
- Cleaning modes
- 3
- Intensity levels
- 3
- Pressure sensor
- Included
- Offers more cleaning modes than the Sonicare 4100.
- Pressure sensor adds a brushing feedback feature.
- Supports a more adjustable brushing routine.
- Still functions as a toothbrush rather than a water flosser.
Is the Philips Sonicare ProtectiveClean 6100 Rechargeable Electric Toothbrush, Black (HX6877/21) worth buying on Black Friday 2026?
Yes. The Philips Sonicare ProtectiveClean 6100 Rechargeable Electric Toothbrush, Black (HX6877/21) is worth comparing if you want more customization than the Sonicare 4100. The Philips Sonicare ProtectiveClean 6100 Rechargeable Electric Toothbrush, Black (HX6877/21)'s 3 cleaning modes and 3 intensity levels support a more tailored brushing routine.
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#5
Oral-B iO Series 5 Rechargeable Electric Toothbrush, Black Onyx
The Oral-B iO Series 5 Rechargeable Electric Toothbrush, Black Onyx is the best alternative for shoppers who prefer a round brush head and app-connected guidance, with 5 cleaning modes.
Best for: App-guided brushing
- Cleaning modes
- 5
- Pressure feedback
- Smart pressure sensor
- Brush head style
- Round
- Five modes give shoppers several routine choices.
- Smart pressure feedback supports brushing awareness.
- Round brush-head design offers an alternative to Sonicare.
- Replacement brush heads are specific to the iO system.
Is the Oral-B iO Series 5 Rechargeable Electric Toothbrush, Black Onyx worth buying on Black Friday 2026?
Yes. The Oral-B iO Series 5 Rechargeable Electric Toothbrush, Black Onyx is a compelling alternative for shoppers who prefer Oral-B’s round brush-head style. Five cleaning modes and smart pressure feedback add useful guidance to a powered-brushing routine.
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#6
Waterpik Complete Care 9.0 Sonic Electric Toothbrush and Water Flosser, White (WP-950)
The Waterpik Complete Care 9.0 Sonic Electric Toothbrush and Water Flosser, White (WP-950) is the best combined countertop system for shoppers seeking brushing and water flossing in one setup, with 10 flosser pressure settings.
Best for: A combined countertop routine
- Flosser pressure settings
- 10
- System functions
- Toothbrush and water flosser
- Flosser reservoir
- 22 ounces
- Combines powered brushing and water flossing.
- Can reduce the need to store separate countertop devices.
- Offers adjustable water-flosser pressure.
- Combined setup requires more counter space than a cordless flosser.
Is the Waterpik Complete Care 9.0 Sonic Electric Toothbrush and Water Flosser, White (WP-950) worth buying on Black Friday 2026?
Yes. The Waterpik Complete Care 9.0 Sonic Electric Toothbrush and Water Flosser, White (WP-950) suits shoppers who want both functions together. The Waterpik Complete Care 9.0 Sonic Electric Toothbrush and Water Flosser, White (WP-950)'s 10-setting flosser and included toothbrush form a convenient countertop system, provided you have room for the combined unit.
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#7
Philips Sonicare 9900 Prestige Power Toothbrush with SenseIQ, Midnight Blue (HX9992/11)
The Philips Sonicare 9900 Prestige Power Toothbrush with SenseIQ, Midnight Blue (HX9992/11) is the best premium toothbrush for shoppers seeking connected features, with 5 brushing modes.
Best for: Premium connected brushing
- Cleaning modes
- 5
- Pressure guidance
- SenseIQ technology
- Connectivity
- App-connected
- Premium feature set includes app-connected guidance.
- Five modes provide several brushing choices.
- SenseIQ technology is designed to respond to brushing behavior.
- Premium features are more than a basic brushing routine requires.
Is the Philips Sonicare 9900 Prestige Power Toothbrush with SenseIQ, Midnight Blue (HX9992/11) worth buying on Black Friday 2026?
Yes. The Philips Sonicare 9900 Prestige Power Toothbrush with SenseIQ, Midnight Blue (HX9992/11) is a premium option for shoppers who value connected guidance and multiple brushing modes. Choose a simpler Sonicare model if you want essential brushing features without an advanced feature set.
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Is the Philips Sonicare 4100 or Waterpik Aquarius better?
The Philips Sonicare 4100 Series Rechargeable Electric Toothbrush, Black (HX3681/23) is for powered brushing, while the Waterpik Aquarius Water Flosser, White (WP-660) is for water flossing between teeth and along the gumline. Neither product is a like-for-like substitute for the other.
Choose the Philips Sonicare 4100 if you want an electric toothbrush with 2 intensity settings, a pressure sensor and a 2-minute brushing timer. Choose the Waterpik Aquarius if your priority is a countertop flosser with 10 pressure settings, 7 tips and a 22-ounce reservoir. Shoppers building a fuller routine can pair a toothbrush with a water flosser, or consider the Waterpik Complete Care 9.0 Sonic Electric Toothbrush and Water Flosser, White (WP-950) for one combined setup. Easy recommendation: decide whether you need brushing, flossing or both before comparing features.
Does a Waterpik Aquarius replace an electric toothbrush?
The Waterpik Aquarius Water Flosser, White (WP-660) does not replace the Philips Sonicare 4100 Series Rechargeable Electric Toothbrush, Black (HX3681/23), because the devices serve different oral-care purposes. The Aquarius directs a stream of water between teeth, while the Sonicare 4100 cleans tooth surfaces with a powered brush head.
For a routine that covers both functions, use a toothbrush and a separate flosser, or compare a combination system such as the Waterpik Complete Care 9.0 Sonic Electric Toothbrush and Water Flosser, White (WP-950). Your preferred setup depends on storage, ease of use and whether you already own a suitable toothbrush. Ask a dental professional for advice about individual oral-care needs, including braces, implants or gum concerns.
Who should choose the Waterpik Aquarius Water Flosser?
The Waterpik Aquarius Water Flosser, White (WP-660) suits shoppers who want a countertop water flosser with 10 pressure settings, 7 tips and a 22-ounce reservoir. The range of settings makes the Aquarius a flexible option for households that want to adjust water pressure or share the device with different tips.
Counter space and outlet access are important considerations: the Aquarius is a countertop appliance, not a pocket-size travel flosser. Shoppers who value portability should compare the Waterpik Cordless Advanced 2.0 Water Flosser, White (WP-580), which uses a rechargeable cordless design and has 3 pressure settings. For brushing rather than flossing, compare the Philips Sonicare 4100 Series Rechargeable Electric Toothbrush, Black (HX3681/23).
Which alternatives are best for travel or a premium routine?
The Waterpik Cordless Advanced 2.0 Water Flosser, White (WP-580) is the portable choice, while the Philips Sonicare 9900 Prestige Power Toothbrush with SenseIQ, Midnight Blue (HX9992/11) is the premium connected-brushing option. Each product answers a different need, so compare function before choosing by feature count.
For more brushing customization without moving to a premium model, the Philips Sonicare ProtectiveClean 6100 Rechargeable Electric Toothbrush, Black (HX6877/21) offers 3 cleaning modes and 3 intensity levels. The Oral-B iO Series 5 Rechargeable Electric Toothbrush, Black Onyx gives shoppers a different brush-head style and 5 cleaning modes. Think about charging, brush-head replacements, packing space and the routine you will use every day.
What should shoppers compare for Black Friday 2026?
Black Friday 2026 shoppers should compare product purpose, included accessories, routine features and storage needs before deciding between the Philips Sonicare 4100 Series Rechargeable Electric Toothbrush, Black (HX3681/23) and the Waterpik Aquarius Water Flosser, White (WP-660). The most important difference is that one brushes and one water flosses.
For toothbrushes, check cleaning modes, intensity choices, pressure feedback, timer functions and replacement-head compatibility. For water flossers, review pressure levels, included tips, reservoir capacity, power format and countertop footprint. A combination unit offers both functions but takes space as one larger setup. We recommend making a short list of must-have features before browsing, then matching products to your existing routine rather than choosing by a long feature list alone.
Buying Guide
Start with the job you need done
Choose an electric toothbrush for powered brushing and a water flosser for water-based cleaning between teeth. The Philips Sonicare 4100 Series Rechargeable Electric Toothbrush, Black (HX3681/23) and Waterpik Aquarius Water Flosser, White (WP-660) are different categories, not direct substitutes.
Compare settings with your routine
A higher setting count is useful only when you want extra control. The Sonicare 4100 has 2 intensity settings, while the Waterpik Aquarius provides 10 water-pressure settings. Consider comfort, ease of adjustment and who will use the product.
Check storage and power
Countertop models need room and nearby power; a cordless water flosser is easier to pack and store. Measure your bathroom space and consider how a reservoir, charging base or travel case fits into your routine.
Review accessories and upkeep
Compare included brush heads or flosser tips, replacement-part compatibility and cleaning requirements. A multi-user household benefits from checking tip quantities, while frequent travelers should focus on portable storage and charging.
Pick a practical feature level
A simple model can cover everyday needs without advanced connectivity. Premium modes, app guidance or combination functions are most useful when they support habits you already want to build.
FAQ
Which is better, Philips Sonicare 4100 or Waterpik Aquarius?
The Philips Sonicare 4100 Series Rechargeable Electric Toothbrush, Black (HX3681/23) is better for powered brushing, while the Waterpik Aquarius Water Flosser, White (WP-660) is better for water flossing. Choose by function: the two products address different parts of an oral-care routine.
Can a Waterpik Aquarius replace brushing?
No. The Waterpik Aquarius Water Flosser, White (WP-660) is a water flosser, not a toothbrush. Pair the Aquarius with an electric or manual toothbrush for both functions, or compare a combined system such as the Waterpik Complete Care 9.0 Sonic Electric Toothbrush and Water Flosser, White (WP-950).
Is the Waterpik Aquarius good for braces?
The Waterpik Aquarius Water Flosser, White (WP-660) includes multiple tips and adjustable pressure settings, features that suit shoppers looking for flexible cleaning around orthodontic hardware. Ask your orthodontist or dental professional which tip and pressure setting fit your specific care instructions.
Which Waterpik is better for travel?
The Waterpik Cordless Advanced 2.0 Water Flosser, White (WP-580) is the better travel-focused option in this guide because its rechargeable cordless design is more portable than the countertop Waterpik Aquarius Water Flosser, White (WP-660). Compare included accessories and storage needs before packing.
Is Philips Sonicare ProtectiveClean 6100 worth choosing over the 4100?
The Philips Sonicare ProtectiveClean 6100 Rechargeable Electric Toothbrush, Black (HX6877/21) is worth comparing if you want 3 cleaning modes and 3 intensity levels. The Philips Sonicare 4100 Series Rechargeable Electric Toothbrush, Black (HX3681/23) is the simpler choice with 2 intensity settings.
What should I look for in a Black Friday electric toothbrush?
Compare pressure feedback, cleaning modes, timer features, replacement brush-head compatibility and charging needs. The Philips Sonicare 4100 Series Rechargeable Electric Toothbrush, Black (HX3681/23) covers core brushing features, while premium options add more settings or connected guidance.