Philips Sonicare HX9911 DiamondClean 9000 Electric Toothbrush with App, Black

Philips Sonicare HX9911 DiamondClean 9000 Electric Toothbrush with App, Black

  • 2 year guarantee included

Free standard delivery
Extended returns until 23 January 2024

Colour: Black

2 years' Protect Plus for your small appliance (accidental damage cover)

Our electrical products are guaranteed against breakdown for a minimum of 2 years at no extra cost. With Protect Plus for your small appliance, you'll get 2 years of protection against accidental damage alongside your guarantee. More about Protect Plus.
Exclusions apply. To make sure this policy meets your needs, please read the Insurance Product Information Document.
Product description

Product code: 81500342

Brush with the Philips Sonicare DiamondClean 9000 for 2 minutes twice a day for up to 10x more plaque removal* and whiter teeth in 1 day*. Philips Sonicare electric toothbrushes have a sonic sweeping motion, with up to 62,000 brush head movements per minute. Every brushstroke creates a dynamic fluid action to propel microbubbles deep between your teeth, removing more plaque from the places traditional brushes can’t reach. A built-in pressure sensor lets you know if you’re brushing too hard, to help protect your teeth and gums. BrushSync™ technology tracks how long you’ve been using your brush head for, and how hard you’ve been brushing. When it’s time to replace your brush head a light on your handle lets you know. Once you’ve finished with your used brush head, all Philips Sonicare brush heads are recyclable with TerraCycle.

Premium Plaque removal

Up to 10x more plaque removal with the C3 Premium Plaque Defence brush head. 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**.

Pressure Sensor

Alerts you when you are brushing too hard.

Progress report

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.

Brush Head Replacement Reminder

Alerts you to replace your brush head when it is no longer performing optimally.

Smart Brush Heads

Look for the symbol on replacement brush heads to ensure compatibility with the replacement reminder technology.

BrushSync™ Technology

Uses microchipped-enabled technology to detect and synchronise the smart brush head with the smart handle enabling Smart mode pairing. All you need to do is to press the power button.

4 cleaning modes, 3 intensities

Choose between Clean, Deep Clean +, Gum Health & White+ cleaning modes and three intensity settings to personalise your brushing experience.

Charging Travel Case

Take your Philips Sonicare wherever you go with its own travel case.

Additional Features:

  • 1 x Premium Plaque Defence brush head included
  • Charging base comes with a two-pin plug
  • 2 weeks battery life limiting the need for frequent charging
  • Quadpacer & Smart time alerts you when to move on to each section of your mouth and when your total time is up.

* vs a manual toothbrush

**based on two, two-minute period of brushing per day

Product specification
Battery life
Up to 14 days
Model name / number
Oscillations per minute
Delivery & returns
Standard Delivery
UK delivery within 2-7 days, 8am - 8pm, Monday to Saturday. Free on orders over £50, otherwise £4.50.
Click & Collect
Free on orders over £30, £2.50 if you spend less. Choose a collection day at checkout, next day available at some locations. Available at Waitrose, selected John Lewis shops, Shell stations and Booths stores.
Local Collection Network
Collect your delivery from thousands of local convenience shops. Your next available collection day will show at checkout.
Evening delivery to selected cities
Order before 10am to get same day evening delivery to addresses within London M25, Manchester, Birmingham and Leeds. Available 7 days a week, delivery between 7 – 10pm on a day of your choice. We’ll text you a 1-hour delivery window on the day. Delivered by 100% electric vehicles.
Next or Named Day Delivery
Delivery on the day of your choice, 8am - 8pm, 7 days a week. You'll receive a text on the morning of delivery with a 1-hour delivery window.
Morning Delivery
Delivery on the day of your choice, by 10.30am available 7 days a week.


Return small or medium items by post or to John Lewis & Partners and Waitrose & Partners shops.

Large items (delivered by two people, such as appliances and furniture) can be returned using our Home Collection service.

You can also return a Click & Collect order to where you collected it.

Our extended Christmas returns policy

We've extended our usual limit for returns just for the festive season. Any gift bought between 27 September 2023 and 24 December 2023 can be returned up until 23 January 2024, if it's unwanted or unsuitable.

Reviews |
Product review details, this product has received, on average, 4.10 out of 5 star rating.
The average rating is4.1out of5