Philips Sonicare DiamondClean Smart Black


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The Philips Sonicare HX9924/14 DiamondClean Black Smart Rechargeable Sonic Toothbrush allows you to be 100% Confident in your Oral Care. Our best ever toothbrush, for complete oral care has four high performance brush heads that let you focus on all areas of your oral health, and our Smart Sensor technology gives you personalised feedback and coaching.


  • Whiter teeth in just 3 days*
  • Removes up to 10x more plaque** for a deep clean
  • Up to 7x healthier gums*** in just 2 weeks
  • App tracks where you've brushed, highlights where you haven't
  • Choose from 5 modes and 3 intensity settings

What's in the Box?
  • 1 Black DiamondClean Smart handle
  • 3 Premium brush heads
  • 1 TongueCare+ tongue brush
  • 1 BreathRx tongue spray
  • 1 USB charging travel case
  • 1 Glass charger

Waste Electrical and Electronic Equipment (WEEE) and waste batteries must never be placed in your waste disposal or recycling bins. WEEE is taken back free of charge at electrical retail outlets on a one-for-one like-for-like basis. There is a bin for small batteries in your local store. Local authority civic amenity facilities also take back WEEE and waste batteries free of charge. WEEE and waste battery recycling is free.

Important info


What is Philips Sonicare?
Our sonic technology supported by contact of the specially designed soft bristles creates fluid action that gently reaches deep between teeth for a superior clean you can see and feel.
Smart Brush Head Recognition
Smart Brush Head Recognition ensures you are getting the best performance with your brush head. When placed on the handle the microchip in the brush head will automatically select the optimal mode and intensity that is best for that brush head.

3 in built Smart Sensors
The pressure sensor ensures that you are not damaging your teeth and gums by brushing with too much pressure, the location sensor enables you whilst connected to our Sonicare App to see the areas that you have and have not brushed to ensure that you cover your whole mouth and the motion sensor alerts you when you are not using the correct brushing technique.

Smart App for Real-time Feedback
Connect via Bluetooth to our free Philips Sonicare App to get real-time feedback on your brushing, track where you have/haven’t brushed, highlight your trouble/focus areas and improve your brushing technique. The App highlights trouble areas on your 3D mouth map, and reminds 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.

Premium Plaque Defence Brush Head
Removes up to 10 x more plaque than a manual toothbrush. Click on the Premium Plaque Defence brush head to experience our deepest clean. With soft flexible sides, the bristles contour to the shape of each tooth's surface

Premium White Brush Head
Whiter teeth in just 3 days*. Click on the Premium White brush head, its densely packed central stain removal bristles help to remove surface stains and reveal your whitest smile.

Premium Gum Care & Premium TongueCare+ Brush Heads
Click on the Premium Gum Care brush head to improve your gum health. Its smaller size and targeted gumline bristles deliver gentle yet effective cleaning along the gumline, where gum disease starts. Enjoy long-lasting fresh breath with TongueCare+. It gently removes odour-causing bacteria from the pores of your tongue.

* In White+ Mode vs a manual tooth brush using a leading Whitening toothpaste.
**Than a manual toothbrush more less

Philips Sonicare DiamondClean Smart

Delivery options

Order & Collect
€2.50 or free if you spend €25 or more from your choice of 85 Boots stores

Standard Delivery
€5 or free when you spend €50 or more

For more information see our delivery help or view our returns policy.

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