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  • Sonicare DiamondClean 9000 Sonic electric toothbrush with accessories - Black

    Sonicare DiamondClean 9000 Sonic electric toothbrush with accessories - Black

    HX9911/39  
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  • Sonicare DiamondClean Smart Sonic electric toothbrush with 2 accessories and app

    Sonicare DiamondClean Smart Sonic electric toothbrush with 2 accessories and app

    HX9917/88  
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  • Sonicare DiamondClean 9000 Series Special edition sonic electric toothbrush

    Sonicare DiamondClean 9000 Series Special edition sonic electric toothbrush

    HX9911/79   £319.99 *
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Specifications

Product Update

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Support Period
No
Philips will provide the necessary security updates until 31 December 2026.
Philips will provide the necessary security updates until 31 December 2026.

Design and finishing

HX9911/39 HX9917/88 HX9911/79
Colour
Black
White
Silk Pink to White Gradient

Service

HX9911/39 HX9917/88 HX9911/79
Warranty
2-year limited warranty
2-year limited warranty
2-year limited warranty

Connectivity

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Bluetooth® wireless technology
Connected brushing app
Connected brushing app
Connected brushing app

Compatibility

HX9911/39 HX9917/88 HX9911/79
Android compatibility
  • Android phones
  • Bluetooth 4.0-enabled tablets
Android OS 8.0 or above
  • Android phones
  • Bluetooth 4.0-enabled tablets
iOS compatibility
  • iPad 3rd Gen or higher
  • iPhone 4S or higher
  • with iOS7 or higher
  • with iOS 7 operating system
iPhones on iOS 13.0 or above
  • iPad 3rd Gen or higher
  • iPhone 4S or higher
  • with iOS7 or higher
  • with iOS 7 operating system

Power

HX9911/39 HX9917/88 HX9911/79
Voltage
110-220 V
110-220 V
110-220 V

Ease of use

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Battery indicator
No
Illuminated icon indicates battery life
No
Brush head recognition
No
Syncs with optimal mode
No
Handle
Slim ergonomic design
Slim ergonomic design
Slim ergonomic design
Handle compatibility
Easy click-on brush heads
Easy click-on brush heads
Easy click-on brush heads
Replacement reminder
  • To always ensure best results
  • reminder icon lights up
  • To always ensure best results
  • reminder icon lights up
  • To always ensure best results
  • reminder icon lights up

Items included

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Brush heads
1 C3 Premium Plaque Control
  • 1 All-in-1 Premium Brush Head
  • 1 G3 Premium Gum Care
4 C3 Premium Plaque Control
Charger base
1
No
No
Charger base and puck
No
No
1
Glass charger
No
1
No
Handle
1 DiamondClean 9000
1 DiamondClean Smart
1 DiamondClean 9000
Travel case
USB charging travel case
USB charging travel case
1

Cleaning performance

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Performance
Removes up to 10 x more plaque*
Removes up to 20 x more plaque*
Removes up to 10 x more plaque*
Pressure feedback
Vibrates handle to alert user
  • Ring lights up in purple
  • Vibrates handle to alert user
Vibrates handle to alert user
Speed
No
Up to 62,000 brush movements/min
No
Timer
BrushPacer and SmarTimer
BrushPacer and SmarTimer
BrushPacer and SmarTimer
TouchUp
No
Ensures 100% coverage
No
Whitening benefits
Whitens teeth in 1 day*
No
No

Technical specifications

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Battery
Rechargeable
Rechargeable
Rechargeable
Battery type
Lithium ION
Lithium ION
Lithium ION
Energy consumption
No
Standby without display <0.5 W
No
Operating time (full to empty)
14 days***
14 days***
14 days***

Modes

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3 intensities
  • High
  • Low
  • Medium
  • Low
  • Medium
  • High
  • High
  • Medium
  • Low
Clean
For exceptional everyday cleaning
For exceptional everyday cleaning
For exceptional everyday cleaning
Deep Clean+
For an invigorating deep clean
For an invigorating deep clean
For an invigorating deep clean
Gum Health
Special attention to molars
For a gentle yet effective clean for gums
Special attention to molars
White+
To remove surface stains
To remove surface stains
To remove surface stains

BrushSync Mode Pairing

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All-in-One Premium
No
Pairs with clean mode
No
G3 Premium Gum Care brush head
No
Pairs with Gum Health mode
No

Smart sensor technology

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3D mouth map
No
Highlights trouble areas
No
BrushSync Replacement Reminder
  • Always know when to
  • replace brush heads
No
  • Always know when to
  • replace brush heads
BrushSync Technology
  • smart brush head
  • Connects smart handle and
No
No
Location sensor
No
Tracks and improves coverage
No
Pressure sensor
Alerts when brushing too hard
Alerts when brushing too hard
Alerts when brushing too hard
Scrubbing sensor
No
Guides to reduce scrubbing
No
TouchUp
No
To address missed spots
No

Software Support

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Software updates
Philips offers relevant software updates for a period of 2 years after the date of purchase.
Philips offers relevant software updates for a period of 2 years after the date of purchase.
No

What's in the box?

    /
    HX9911/39 HX9917/88 HX9911/79

    Sonicare handle DiamondClean 9000
    Yes
    No
    No

    Premium Plaque Defense Brush Head (C3)
    Yes
    No
    No

    USB Charging Travel Case
    Yes
    No
    No

    Puck
    Yes
    No
    No

    Sonicare handle Diamond Clean Smart 9400
    No
    Yes
    No

    Premium All-in-One brush head
    No
    Yes
    No

    Premium Gum Care Brush Head (G3)
    No
    Yes
    No

    Glass charger
    No
    Yes
    No

    USB-C Charging Travel Case
    No
    Yes
    No
    * Suggested retail price
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