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  • Complete care for a healthier mouth
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  • Complete care for a healthier mouth
  • Complete care for a healthier mouth
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  • Complete care for a healthier mouth

Philips Sonicare DiamondClean Smart 9400Sonic electric toothbrush with app

HX9917/90

HX992S

Complete care for a healthier mouth
The DiamondClean Smart 9400 is our best toothbrush, for complete care. High-performance brush heads let you focus on all areas of your oral health and our Smart Sensor technology gives you personalised feedback and coaching.
See all benefits

Feel confident, with 100% coverage

Complete care for a healthier mouth

  • Personalised coaching

  • Smart brush head sensors

  • Smart brush head recognition

  • 4 modes, 3 intensities

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

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

Click on the G3 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 4 x more surface contact** and remove up to 10 x more plaque from hard-to-reach areas*.

Choose from 4 modes and 3 intensity settings

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.

Guides your brushing and highlights missed areas

Guides your brushing and highlights missed areas

The Philips Sonicare app lets you know when you've achieved a thorough clean, and coaches you to be a better, more mindful brusher.

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Disclaimers

  1. Removes up to 10 x more plaque vs a manual toothbrush

  2. compared to DiamondClean

  3. based on brushing for two minutes twice a day on standard mode