10 Best Philips Sonicare 9400 Diamond Clean Smart Toothbrush of 2026

Last updated on 04/02/2026
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Best Choice
1
9.8
Exceptional
Philips Sonicare DiamondClean Connected Electric Toothbrush 2 Pack, x2 Sonic Toothbrushes, x2 Charging Travel Cases, x2 A3 Brush Heads, 12 Brushing Settings, (Black and Rose Gold) Model HX9912/71
Philips Sonicare

Philips Sonicare DiamondClean Connected Electric Toothbrush 2 Pack, x2 Sonic Toothbrushes, x2 Charging Travel Cases, x2 A3 Brush Heads, 12 Brushing Settings, (Black and Rose Gold) Model HX9912/71

Why we love it
  • Best stain removal technology.
  • Healthier gums in six weeks.
  • Smart brush replacement reminder.
Main Highlights
  • The best cleaning and stain removal (vs. a manual toothbrush)
  • Up to 15x healthier gums in just six weeks (vs. a manual toothbrush)
  • Up to 20x more plaque removal (vs. a manual toothbrush after 6 weeks)
  • Up to 100% less stains in just 2 days (vs. a manual toothbrush)
  • BrushSync Technology lets you know when to replace your brush head
  • 12 Total Settings: 4 Modes (Clean, White+, Deep Clean+ and Gum Health) and 3 Intensities
  • Pressure sensor lets you know when you're brushing too hard
9.8
Exceptional
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🛡️Trusted by 100M+ UsersWhy?
Best Value
2
9.6
Superb
Philips Sonicare DiamondClean Smart 9750 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 5 Brushing Modes and 3 Intensity Levels, Lunar Blue, Model HX9954/74
Philips Sonicare

Philips Sonicare DiamondClean Smart 9750 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 5 Brushing Modes and 3 Intensity Levels, Lunar Blue, Model HX9954/74

Why we love it
  • Exceptional plaque removal capabilities.
  • Customizable brushing experience available.
  • Real-time feedback for better care.
Main Highlights
  • Advanced sonic toothbrush for improved oral health: achieve up to 20x more plaque removal¹, up to 15x healthier gums¹, and remove up to 100% more stains than a manual toothbrush
  • Personalize your brushing with this innovative electric toothbrush: choose from 5 brushing modes and 3 intensity levels to meet your oral healthcare goals
  • Real-time feedback: the light ring on the end of your handle will flash if you use too much pressure, reminding you to ease off the pressure and protect your teeth and gums
  • Personalized guidance: connect your toothbrush to the Philips Sonicare app and receive personalized brushing guidance to maintain and improve your brushing habits
  • #1 dental professional recommended sonic toothbrush brand worldwide³: benefit from Philips expertise to keep your teeth and gums in the best condition
  • The set includes: 1x DiamondClean Smart 9750 sonic electric toothbrush, 1x A3 Premium All-in-One brush head, 1x C3 Premium Plaque Control brush head and more - see the "what's in the box" section
9.6
Superb
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3
9.6
Superb
Philips Sonicare DiamondClean Smart 9700 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 5 Brushing Modes and 3 Intensity Levels, Lunar Blue, Model HX9957/71
Philips Sonicare

Philips Sonicare DiamondClean Smart 9700 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 5 Brushing Modes and 3 Intensity Levels, Lunar Blue, Model HX9957/71

Why we love it
  • Advanced plaque removal technology.
  • Customizable brushing options available.
  • Real-time pressure feedback system.
Main Highlights
  • Advanced sonic toothbrush for improved oral health: achieve up to 20x more plaque removal¹, up to 15x healthier gums¹, and remove up to 100% more stains than a manual toothbrush
  • Personalize your brushing with this innovative electric toothbrush: choose from 5 brushing modes and 3 intensity levels to meet your oral healthcare goals
  • Real-time feedback: the light ring on the end of your handle will flash if you use too much pressure, reminding you to ease off the pressure and protect your teeth and gums
  • Personalized guidance: connect your toothbrush to the Philips Sonicare app and receive personalized brushing guidance to maintain and improve your brushing habits
  • #1 dental professional recommended sonic toothbrush brand worldwide³: benefit from Philips expertise to keep your teeth and gums in the best condition
  • The set includes: 1x DiamondClean Smart 9700 sonic electric toothbrush, 1x A3 Premium All-in-One brush head, 3x C3 Premium Plaque Control brush heads and more - see the "what's in the box" section
9.6
Superb
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4
9.5
Superb
Save 11%
Philips Sonicare DiamondClean 9900 Prestige Electric Toothbrush - with SenseIQ Technology and Advanced AI App, 5 Brushing Modes, 3 Intensity Levels, Charging Travel Case,Midnight Blue, Model HX9990/12
Philips Sonicare

Philips Sonicare DiamondClean 9900 Prestige Electric Toothbrush - with SenseIQ Technology and Advanced AI App, 5 Brushing Modes, 3 Intensity Levels, Charging Travel Case,Midnight Blue, Model HX9990/12

11% Off
Why we love it
  • Intelligent sense and adaptation.
  • Superior plaque removal power.
  • Healthier gums in just weeks.
Main Highlights
  • A3 Premium All-in-One brush head removes up to 20x more plaque than a manual toothbrush; achieve 15x healthier gums in six weeks², and up to 100% more stain removal in less than two days³
  • SenseIQ Technology senses your pressure, motion, and coverage up to 100 times per second; if you apply too much pressure, the toothbrush will adjust the intensity level to protect your teeth and gums
  • Gentle yet effective clean with up to 62,000 bristle movements per minute; Sonicare Fluid Action supports the bristles to clean by driving fluid deep between teeth and along the gumline
  • This electric toothbrush for adults has a light ring at its base that gently lets you know if you're overdoing the pressure; simply ease off when it lights up to help your gums stay protected
  • 15 brushing settings: select from 5 modes - Clean, White, Gum Health, Deep Clean+, and Sensitive - and one of three intensity levels for a personalized clean; select your preferences in the app
  • Achieve your oral health care goals with the Sonicare toothbrush and app: the two pair seamlessly to deliver guided brushing, tips and tricks, and content personalized to you
  • Brush head replacement reminder tracks how often and how hard you brush, then reminds you to replace your brush head once it's time; dental professionals recommend changing your brush head regularly
  • Rechargeable toothbrush providing up to 14 days of regular brushing on a full charge; with the included charging travel case, you can maintain your oral care routine, even while on the go
  • The set includes: 1x Prestige 9900 sonic electric toothbrush, 1x A3 Premium All-in-One brush head, 1x charging travel case, 1x charging stand, 1x USB cable
9.5
Superb
Save 11%
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5
9.4
Superb
Save 40%
Philips Sonicare DiamondClean Connected Electric Toothbrush 2 Pack, x2 Sonic Toothbrushes, x2 Charging Travel Cases, x2 A3 Brush Heads, 12 Brushing Settings, (Pink and White), Model HX9912/72
Philips Sonicare

Philips Sonicare DiamondClean Connected Electric Toothbrush 2 Pack, x2 Sonic Toothbrushes, x2 Charging Travel Cases, x2 A3 Brush Heads, 12 Brushing Settings, (Pink and White), Model HX9912/72

40% Off
Why we love it
  • Superior cleaning and stain removal.
  • Healthier gums in six weeks.
  • Customizable settings for every need.
Main Highlights
  • The best cleaning and stain removal (vs. a manual toothbrush)
  • Up to 15x healthier gums in just six weeks (vs. a manual toothbrush)
  • Up to 20x more plaque removal (vs. a manual toothbrush after 6 weeks)
  • Up to 100% less stains in just 2 days (vs. a manual toothbrush)
  • BrushSync Technology lets you know when to replace your brush head
  • 12 Total Settings: 4 Modes (Clean, White+, Deep Clean+ and Gum Health) and 3 Intensities
  • Pressure sensor lets you know when you're brushing too hard
9.4
Superb
Save 40%
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6
9.3
Superb
Save 5%
Philips Sonicare DiamondClean Smart 9300 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 4 Brushing Modes and 3 Intensity Levels, Black, Model HX9903/15
Philips Sonicare

Philips Sonicare DiamondClean Smart 9300 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 4 Brushing Modes and 3 Intensity Levels, Black, Model HX9903/15

5% Off
Why we love it
  • Advanced plaque removal technology.
  • Personalized brushing experience available.
  • Real-time feedback for healthier habits.
Main Highlights
  • Advanced sonic toothbrush for improved oral health: achieve up to 20x more plaque removal¹, up to 15x healthier gums¹, and remove up to 100% more stains than a manual toothbrush
  • Personalize your brushing with this innovative electric toothbrush: choose from 4 brushing modes and 3 intensity levels to meet your oral healthcare goals
  • Real-time feedback: the light ring on the end of your handle will flash if you use too much pressure, reminding you to ease off the pressure and protect your teeth and gums
  • Personalized guidance: connect your toothbrush to the Philips Sonicare app and receive personalized brushing guidance to maintain and improve your brushing habits
  • #1 dental professional recommended sonic toothbrush brand worldwide³: benefit from Philips expertise to keep your teeth and gums in the best condition
  • The set includes: 1x DiamondClean Smart 9300 sonic electric toothbrush, 1x A3 Premium All-in-One brush head, 1x C3 Premium Plaque Control brush head, 1x charging glass and stand, 1x travel case
9.3
Superb
Save 5%
Amazon Logo
7
9.1
Superb
Save 8%
Philips Sonicare DiamondClean Smart 9300 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 4 Brushing Modes and 3 Intensity Levels, White, Model HX9903/05
Philips Sonicare

Philips Sonicare DiamondClean Smart 9300 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 4 Brushing Modes and 3 Intensity Levels, White, Model HX9903/05

8% Off
Why we love it
  • Enhanced plaque removal efficiency.
  • Customizable brushing experience available.
  • Real-time feedback for optimal care.
Main Highlights
  • Advanced sonic toothbrush for improved oral health: achieve up to 20x more plaque removal¹, up to 15x healthier gums¹, and remove up to 100% more stains than a manual toothbrush
  • Personalize your brushing with this innovative electric toothbrush: choose from 4 brushing modes and 3 intensity levels to meet your oral healthcare goals
  • Real-time feedback: the light ring on the end of your handle will flash if you use too much pressure, reminding you to ease off the pressure and protect your teeth and gums
  • Personalized guidance: connect your toothbrush to the Philips Sonicare app and receive personalized brushing guidance to maintain and improve your brushing habits
  • #1 dental professional recommended sonic toothbrush brand worldwide³: benefit from Philips expertise to keep your teeth and gums in the best condition
  • The set includes: 1x DiamondClean Smart 9300 sonic electric toothbrush, 1x A3 Premium All-in-One brush head, 1x C3 Premium Plaque Control brush head, 1x charging glass and stand, 1x travel case
9.1
Superb
Save 8%
Amazon Logo
8
9.0
Superb
Philips Sonicare DiamondClean Smart 9500 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 5 Brushing Modes and 3 Intensity Levels, Black, Model HX9923/11
Philips Sonicare

Philips Sonicare DiamondClean Smart 9500 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 5 Brushing Modes and 3 Intensity Levels, Black, Model HX9923/11

Why we love it
  • Effective plaque removal technology.
  • Customizable modes for personalized care.
  • Real-time pressure feedback for protection.
Main Highlights
  • Advanced sonic toothbrush for improved oral health: achieve up to 20x more plaque removal¹, up to 15x healthier gums¹, and remove up to 100% more stains than a manual toothbrush
  • Personalize your brushing with this innovative electric toothbrush: choose from 5 brushing modes and 3 intensity levels to meet your oral healthcare goals
  • Real-time feedback: the light ring on the end of your handle will flash if you use too much pressure, reminding you to ease off the pressure and protect your teeth and gums
  • Personalized guidance: connect your toothbrush to the Philips Sonicare app and receive personalized brushing guidance to maintain and improve your brushing habits
  • #1 dental professional recommended sonic toothbrush brand worldwide³: benefit from Philips expertise to keep your teeth and gums in the best condition
  • The set includes: 1x DiamondClean Smart 9500 sonic electric toothbrush, 1x A3 Premium All-in-One brush head, 1x C3 Premium Plaque Control brush head and more - see the "what's in the box" section
9.0
Superb
Amazon Logo
9
9.0
Superb
Philips Sonicare DiamondClean Smart 9500 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 5 Brushing Modes and 3 Intensity Levels, White, Model HX9923/01
Philips Sonicare

Philips Sonicare DiamondClean Smart 9500 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 5 Brushing Modes and 3 Intensity Levels, White, Model HX9923/01

Why we love it
  • Unmatched plaque removal efficiency.
  • Customizable brushing experience available.
  • Real-time feedback for better care.
Main Highlights
  • Advanced sonic toothbrush for improved oral health: achieve up to 20x more plaque removal¹, up to 15x healthier gums¹, and remove up to 100% more stains than a manual toothbrush
  • Personalize your brushing with this innovative electric toothbrush: choose from 5 brushing modes and 3 intensity levels to meet your oral healthcare goals
  • Real-time feedback: the light ring on the end of your handle will flash if you use too much pressure, reminding you to ease off the pressure and protect your teeth and gums
  • Personalized guidance: connect your toothbrush to the Philips Sonicare app and receive personalized brushing guidance to maintain and improve your brushing habits
  • #1 dental professional recommended sonic toothbrush brand worldwide³: benefit from Philips expertise to keep your teeth and gums in the best condition
  • The set includes: 1x DiamondClean Smart 9500 sonic electric toothbrush, 1x A3 Premium All-in-One brush head, 1x C3 Premium Plaque Control brush head and more - see the "what's in the box" section
9.0
Superb
Amazon Logo
10
9.0
Superb
Save 5%
Philips Sonicare DiamondClean Connected Rechargeable Battery Powered Toothbrush 2-Pack Pink/White
Philips

Philips Sonicare DiamondClean Connected Rechargeable Battery Powered Toothbrush 2-Pack Pink/White

5% Off
Why we love it
  • Stylish colors for everyone.
  • Convenient wireless charging included.
  • Perfect for travel and storage.
Main Highlights
  • 2 Sonicare Handles- One White / One Pink
  • 2 Wireless Charging Glasses
  • 2 Premium Plaque Brush Heads
  • 2 USB Charging Travel Cases
9.0
Superb
Save 5%
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Related Deals You Might Like for Philips Sonicare 9400 Diamond Clean Smart Toothbrush

📊We scanned 1331 products
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We reviewed the most relevant Philips Sonicare 9400 Diamond Clean Smart Toothbrush offers across Amazon and leading retailers, covering major brands and models. Our shortlist features trusted names like Philips Sonicare, Philips, known for dependable quality and smart design.
⭐
To determine today's best Philips Sonicare 9400 Diamond Clean Smart Toothbrush, we analyzed 6656 real customer and expert reviews, focusing on satisfaction, real-world performance and long-term reliability. We also weigh each review's relevance, authenticity and freshness for a fair comparison.

Here's what we found:

🏆 #1
Philips Sonicare DiamondClean Connected Electric Toothbrush 2 Pack, x2 Sonic Toothbrushes, x2 Charging Travel Cases, x2 A3 Brush Heads, 12 Brushing Settings, (Black and Rose Gold) Model HX9912/71

Our overall winner is Philips Sonicare DiamondClean Connected Electric Toothbrush 2 Pack, x2 Sonic Toothbrushes, x2 Charging Travel Cases, x2 A3 Brush Heads, 12 Brushing Settings, (Black and Rose Gold) Model HX9912/71 by Philips Sonicare. It stands out for the right balance of quality, performance and value.

✨ What sets it apart:
✓Best stain removal technology.
✓Healthier gums in six weeks.
✓Smart brush replacement reminder.
💎 Best Value
Philips Sonicare DiamondClean Smart 9750 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 5 Brushing Modes and 3 Intensity Levels, Lunar Blue, Model HX9954/74

The best value for most shoppers is Philips Sonicare DiamondClean Smart 9750 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 5 Brushing Modes and 3 Intensity Levels, Lunar Blue, Model HX9954/74 by Philips Sonicare, with consistently high satisfaction across expert and customer reviews.

💰 Best Deal
Philips Sonicare DiamondClean Connected Electric Toothbrush 2 Pack, x2 Sonic Toothbrushes, x2 Charging Travel Cases, x2 A3 Brush Heads, 12 Brushing Settings, (Pink and White), Model HX9912/72

The strongest deal right now for Philips Sonicare 9400 Diamond Clean Smart Toothbrush is Philips Sonicare DiamondClean Connected Electric Toothbrush 2 Pack, x2 Sonic Toothbrushes, x2 Charging Travel Cases, x2 A3 Brush Heads, 12 Brushing Settings, (Pink and White), Model HX9912/72 at Philips Sonicare, currently at 40% off.

🔄Our Philips Sonicare 9400 Diamond Clean Smart Toothbrush ranking is updated regularly to reflect new releases and price changes—check back for the latest picks and deals.