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Thoroughly clean your teeth and gums and keep your mouth fresh and healthy with the Philips Sonicare DiamondClean 9000 Electric Toothbrush - Black.

Key Features
  • Comes with 4 brushing modes (Clean, White+, Gum Health, and Deep Clean+) to easily address different brushing requirements
  • Compatible with the Sonicare app (download required), allowing for convenient monitoring of your brushing habits
  • Will play a pulsing sound to alert you when you’re brushing too hard, based on what the integrated pressure sensor detects
  • BrushSync replacement reminder keeps you updated on when it’s time for replacing the brush head

Learn more about the benefits of the Philips Sonicare DiamondClean Electric Toothbrush in our latest blog post: https://www.harveynorman.com.au/blog/fitness-personal-grooming/philips-sonicare-diamondclean-9000-connected-electric-toothbrush-review/

What's In The Box?

  • 1x DiamondClean 9000 Handle
  • 1x C3 Premium Plaque Control Brush Head
  • 1x Glass Charger
  • 1x USB Charging Travel Case
  • 1x Charger Base


Barcode (GTIN) 8710103932666
Product Type Toothbrushes
Brand Philips
Model HX9912/17
Colour Black
Manufacturers Express Warranty (months) 24

If you feel your product has failed a Consumer Guarantee (as defined by Australian Consumer Law) then you can:

  • Return it to your local Harvey Norman store to initiate an inspection / service call
  • Contact Us at Harvey Norman Online
  • If it is a downloadable product (software or e-Gift Card) please contact Harvey Norman Online

  • Buying Guide: Dental Care

    Matching the right toothbrush or water flosser to your daily dental routine can be tricky. Our buying guide takes you through a range of product types, highlighting their benefits and features to help you purchase the right products for a bright white smile.

Expert Reviews
Customer Reviews


Get a brand new replacement if your product suffers an eligible fault through our hassle free support process, plus enjoy a range of benefits like technical support and exclusive Product Care® discounts.

Discover all of the benefits Product Care® brings you:


When you purchase a Product Care® Replacement Plan, if an assessment finds that Your Product has suffered an Eligible Fault, We'll arrange to have a brand new replacement product supplied to you. Where We cannot find a suitable replacement, We will give You a store credit or cash settlement at Our discretion.

When You purchase a Repair Plan, if an assessment finds that Your Product has suffered an Eligible Fault, We'll arrange to have Your product repaired.


Our range of support options ensure you experience an easy and hassle free process when you need to talk to us about your Product Care® plan. Whether you are experiencing a fault, or wanting to redeem your entitlements, we will provide you with guidance and support every step of the way.


Having Product Care® with your purchase means you can enjoy a range of special benefits that are exclusive to you and will help you enjoy the experience of your new product even more.

Conditions apply. This section should always be read in conjunction with the Terms and Conditions for Product Care® Replacement (Electrical).

Learn more about Product Care®.

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Philips Sonicare DiamondClean 9000 Electric Toothbrush - Black
HX9912/17 8710103932666

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