HX9912/40
Whiter, healthier teeth for life
Philips Sonicare's best whitening in our most elegant sonic electric toothbrush. Switch to Philips Sonicare.
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Know you're getting the deepest possible clean with The C3 Premium Plaque Control brush head. The soft, flexible bristles are designed to curve around the contours of your teeth, giving you 4x more surface contact** and up to 10x more plaque removal from hard-to-reach spots.
The C3 Premium Plaque Control brush head is designed to give you your deepest clean yet. Soft flexible sides and bristles perfectly curve around the contours of your teeth, giving you 4x more surface contact and helping target hard-to-reach spots*.
The DiamondClean 9000 gives you the guidance you need to improve and maintain healthy brushing habits in between dentist checkups. Built-in smart sensors let you know when you're using too much pressure, and by connecting your brushing experience to the Sonicare app, a personalized Progress Report helps you stay on track, to see how much you've improved over time.
DiamondClean 9000 comes with Clean, White+, Gum Health and Deep Clean+ to take care of your brushing needs. Clean mode is for exceptional everyday cleaning, White+ is for removing stains, Gum Health provides a gentle yet effective clean for gums and Deep Clean+ gives you an invigorating deep clean. Three intensities allow you to choose between a higher setting to boost your clean and a lower one for more-sensitive mouths.
Smart brush heads ensure you're using the right mode and intensity for the best possible clean. For an example, say you're using the W3 Premium White brush head. Your DiamondClean 9000's BrushSync technology will automatically sync your brush head with the White+ mode to help whiten your teeth.
You might not notice if you're brushing too hard, but your DiamondClean 9000 will. If you need to ease up, the toothbrush will make a pulsing sound. It's a heads up to let your brush head do the work. 7 out of 10 people found this feature helped them become a better brusher.
All brush heads wear out over time, so you'll want to keep an eye on yours to make sure you're still getting a great clean. Our BrushSync technology tracks how long you've been using your brush head for, and how hard you've been brushing. The BrushSync replacement reminder on your handle and a short beep gives you a heads up when it's time to replace it.
Your DiamondClean 9000 will last for up to two weeks on a single charge with regular use.
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