Philips Sonicare DiamondClean Smart Electric Toothbrush - White - HX9903/01
Philips Sonicare DiamondClean Smart Electric Toothbrush - White - HX9903/01


Philips Sonicare DiamondClean Smart Electric Toothbrush - White - HX9903/01

Item # L9734187

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Colour: White

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  • Feel confident, with 100% coverage
  • Personalized coaching
  • Smart brush head sensors
  • Smart brush head recognition
  • 4 modes, 3 intensities

Removes up to 10x more plaque* for a deep clean
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*.

Up to 7x healthier gums* in just 2 weeks

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.*

Remove up to 100% more stains** in just 3 days

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.**

Tracks where you've brushed, highlights where you haven't

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.

Takes you back to any missed spots for 100% coverage

If you happen to miss a spot while brushing your teeth, your app's TouchUp feature will show you. You can then go back for a second pass, and be confident you are getting a complete clean, every time.

Start taking better care of your trouble areas
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.

Alerts you if you're pressing too hard

You might not notice when you brush too hard, but your DiamondClean Smart will. If you use too much pressure, the light ring on the end of your handle will flash. This is a gentle reminder to ease off the pressure, and let your brush head do the work. 7 out of 10 people found this feature helped them become a better brusher.

Guides you to reduce your scrubbing
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

Brush heads automatically select the optimal settings
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.

Make sure you're getting the most from your brush head

Brush heads wear-out over time and become less effective at removing plaque. With smart brush head recognition you'll never lose track of when to replace your brush head. Your toothbrush tracks how long and hard you've brushed with each brush head, and will alert you when it's time to replace. You can also monitor the lifetime of your brush heads in the Philips Sonicare app, and even order replacements so you're never caught short.

Choose from 4 modes and 3 intensity settings
With DiamondClean Smart you get the full works. Our 3 intensity settings let you boost your clean, and our 4 modes cover all your brushing needs; Clean mode for exceptional daily cleaning, White+ to remove stains, Deep Clean+ for an invigorating deep clean, and Gum Health to gently clean along your gum line.

Premium charging glass and travel case

Charging a toothbrush has never been so effortless. Simply place your toothbrush into the sleek glass holder after brushing, and it instantly starts charging. Not only does your glass charge fit stylishly into your bathroom, it also doubles as a rinsing glass. Enjoy two weeks of regular use from a single full charge. Our premium travel case lets you store your toothbrush hygienically when you're on the go.

*than a manual toothbrush
** as compared to a manual toothbrush with a leading whitening toothpaste
*** compared to DiamondClean
**** in Gum Health mode vs. a manual toothbrush at 2 weeks
***** after 3 days of use in White+ mode vs. a manual toothbrush
****** based on two periods of two-minute brushings per day on standard
  • Battery Type

    Lithium ION

  • Box Contents

    Handles: 1 DiamondClean Smart
    Brush heads:
    1 C3 Premium Plaque Control
    1 G3 Premium Gum Care
    1 W3 Premium White
    Glass charger
    Premium travel case

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