Philips Sonicare DiamondClean Smart Sonic Electric Toothbrush with App - HX9924/46

SKU: APPHI-HX9924/46
Availability: 1 in stock
$399.00 $449.00
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Our best ever toothbrush, for complete oral care

Feel confident, with 100% coverage

The DiamondClean Smart is our best toothbrush, for complete care. Four highperformance brush heads let you focus on all areas of your oral health, and our Smart Sensor technology gives you personalized feedback and coaching.


Proven to improve oral health

  • Removes up to 10x more plaque* for a deep clean
  • Up to 7x healthier gums* in just 2 weeks
  • Remove up to 100% more stains** in just 3 days
  • Enjoy long-lasting fresh breath

Personalized in-app coaching to perfect brushing

  • Takes you back to any missed spots for 100% coverage
  • Alerts you if you're pressing too hard
  • Start taking better care of your trouble areas
  • Guides you to reduce your scrubbing
  • Tracks where you've brushed, highlights where you haven't

Optimize your brushing

  • Choose from 5 modes and 3 intensity settings
  • Make sure you're getting the most from your brush head
  • Brush heads automatically select the optimal settings


Sonic electric toothbrush with app

Personalized coaching Smart brush head sensors, Smart brush head recognition, 5 modes, 3 intensities


Say goodbye to plaque

Philips Sonicare DiamondClean Smart Sonic Electric Toothbrush with App

Click on the Premium plaque control brush head to experience our deepest clean. With soft flexible sides, the bristles contour to the shape of each tooth's surface to provide 4x more surface contact*** and remove up to 10x more plaque from hard-to-reach areas*.

Care for your gums

Philips Sonicare DiamondClean Smart Sonic Electric Toothbrush with App

Click on the Premium Gum Care brush head to improve your gum health. Its smaller size and targeted gum line bristles deliver gentle yet effective cleaning along the gum line, where gum disease starts. It's clinically proven to deliver up to 100% less gum inflammation* and up to 7x healthier gums in just two weeks.*

Whiter teeth, fast

Philips Sonicare DiamondClean Smart Sonic Electric Toothbrush with App

Click on the Premium White brush head to remove surface stains and reveal your whitest smile. With its densely packed central stain removal bristles, it's clinically proven to remove up to 100% more stains in just three days.**

TongueCare+ tongue brush

Click on the TongueCare+ tongue brush to gently remove odor causing bacteria from the pores of your tongue. Its 240 specially designed MicroBristles get between all your tongue's ridges and grooves to remove bacteria and debris that lead to bad breath. Team with our antibacterial BreathRx tongue spray for superior cleaning and super fresh breath.

Focus areas and goal-setting

Any trouble areas your dentist has pointed out? We'll highlight them on your in-app 3D mouth map, and remind you to pay extra attention to these areas.

Never miss a spot

Thanks to our smart location sensor, you'll always know where you've brushed, and where you haven't. Real-time tracking on the Philips Sonicare app that lets you know when you've achieved a thorough clean, and coaches you to be a better, more mindful brusher.

Easy does it

With an electric toothbrush, you let the brush do the work. We've built a scrubbing sensor into your handle as a gentle reminder to reduce scrubbing. This way, you can improve your technique and get a gentler, more effective clean.

BrushSync mode pairing

Wondering which mode and intensity you should use? Wonder no longer. A microchip in your brush head tells your DiamondClean Smart which one you're using. So if you click on a gum-care brush head, for example, your toothbrush knows to select the optimal mode and intensity to provide a gentle yet effective care for your gums. All you need to do is to press the power button



  • Clean: For exceptional everyday clean
  • White+: To remove surface stains
  • Deep Clean+: For an invigorating deep clean
  • Gum Health: Special attention to molars
  • TongueCare+: For long lasting clean breath
  • 3 intensities: High, Medium, Low

Items included

  • Handles: 1 DiamondClean Smart
  • Brush heads: 1 C3 Premium Plaque Control, 1 G3 Premium Gum Care, 1 W3 Premium White, 1 TongueCare+ tongue brush
  • Glass charger: 1
  • Travel case: USB charging travel case

BrushSync Mode Pairing

  • Premium Plaque Control: Pairs with Clean mode
  • Premium Gum Care brush head: Pairs with Gum Health mode
  • Premium White brush head: Pairs with White+ mode
  • TongueCare+ tongue brush: Pairs with TongueCare mode


  • Bluetooth® wireless technology: Connected brushing app


  • Android compatibility: Android phones, Bluetooth 4.0 enabled tablets
  • iOS compatibility: iPad 3rd Gen or higher, iPhone 4S or higher, with iOS7 or higher

Design and finishing

  • Color: Gray

Cleaning performance

  • Speed: Up to 31,000 brush strokes/min
  • Performance: Removes up to 10x more plaque*
  • Health benefits: Up to 7x healthier gums****
  • Whitening benefits: Up to 100% less stains*****
  • Pressure feedback: Ring lights up in purple,
  • TouchUp: Ensures 100% coverage
  • Timer: BrushPacer and Smartimer

Smart sensor technology

  • Pressure sensor: Alerts when brushing too hard
  • Location sensor: Tracks & improves coverage
  • Scrubbing sensor: Guides to reduce scrubbing
  • 3D mouth map: Highlights trouble areas
  • TouchUp: To address missed spots

Ease of use

  • Handle compatibility: Easy click-on brush heads
  • Brush head recognition: Syncs with optimal mode
  • Replacement reminder: To always ensure best results, reminder icon lights up
  • Battery indicator: Illuminated icon indicates battery life
  • Handle: Slim ergonomic design
  • Display: Illuminated display

Technical specifications

  • Battery: Rechargeable
  • Battery type: Lithium ION
  • Operating time (full to empty): 14 days******


  • Voltage: 110-220 V


  • Warranty: 2-year limited warranty