Philips Sonicare DiamondClean 9000 HX9911/84 Electric Toothbrush

Philips Sonicare DiamondClean 9000 HX9911/84 is a pink electric toothbrush supplied with a C3 Premium Plaque Control brush head, travel case and charger. Four brushing modes and three intensity levels give users options for different routines, while the listing’s conflicting vibration-rate claims and customer concerns about battery life and durability merit attention.

At a glance

Four listed modes are Clean, White+, Gum Health and Deep Clean+.
Three intensity levels are described as ranging from Low to High.
The listing describes app guidance and a personalised progress report, as well as a pressure alert from built-in sensors.
A C3 Premium Plaque Control brush head, travel case and charger base and puck are listed as included.

Price

£107.99Save 64%

Reference price: ~~£299.99~~

Price checked: 12 Nov 2026

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Often bought together

Philips Hx9911/84 Sonicare Diamond Clean 9000 Series, Power Electric Tooth Brush, Pink, 1 Count, Pack of 1

£39.99

Pros and cons

Pros

Several cleaning modes and intensity settings let users tailor the brushing routine.
The listed app guidance and pressure alert may help users monitor their brushing habits.
A travel case and charger are included in the stated contents.

Technical specifications

19 specifications

Identity
Brand	PHILIPS
Model	Philips Sonicare DiamondClean 9000 Series Power Electric Toothbrush Special Edition
Model number	HX9911/84
Colour	Pink
Age range	Adult

Brushing and connectivity
Brushing modes	4
Intensity settings	three intensity settings, from Low to High
Operation mode	Automatic
Motion	Vibrate
Claimed vibration rate	62,000 pulses every minute
App feature	Sonicare App

Power and battery
Power configuration	Corded Electric
Battery listing	1 Lithium Ion batteries required.

Dimensions and materials
Weight listed	0.64 Kilograms
Package dimensions	26.1 x 15.6 x 10.2 cm; 640 g
Bristle material	Nylon
Handle material	Plastic
Brush-head shape	Round
Item firmness	Medium

What to know before buying

Listing details to confirm

The listing gives conflicting sonic vibration rates: 62,000 pulses per minute in one feature and 31,000 pulses per minute in the product description. Treat both as listing claims, not a settled specification. The listing also calls the power configuration corded electric while separately requiring a lithium-ion battery, so the exact power arrangement is unclear. Customer feedback reports mixed views of quality and value, alongside concerns about battery charging and durability. Whitening in three days is claimed only for White+ mode with a leading whitening toothpaste, and results may vary.

What’s in the box

Included

DiamondClean 9000 handle
1 x C3 Premium Plaque Control brush head
Power adapter
Travel case
User manual
2 year global warranty

Who is it for?

A good fit for

Adults looking for a pink electric toothbrush with several modes and intensity choices.
Buyers who want a travel case and app-linked brushing guidance in the stated kit.

Less suited to

Buyers who need clear, confirmed battery-life or power-configuration details before choosing.
Buyers who prefer to avoid products with reported customer concerns about charging and durability.

Philips Sonicare DiamondClean 9000 HX9911/84 Electric Toothbrush · photo 2 — Additional product photo 2

Customer reviews on Amazon

4 / 5 · 954 ratings

5 stars63%63%
4 stars10%10%
3 stars5%5%
2 stars6%6%
1 star16%16%

Customer feedback is mixed on quality and value, with battery life and durability drawing negative comments, including reports of charging problems and failures. That feedback matters for a rechargeable brush intended for regular use, especially because the listing does not clearly reconcile its corded-electric description with its battery requirement. The supplied overall ratings are also mixed, so they do not establish that every unit will have these issues.

Frequently asked questions

Which brush head is listed with the Philips Sonicare DiamondClean 9000 HX9911/84?

The stated contents include one C3 Premium Plaque Control brush head.

What brushing modes are described?

The product description names Clean, White+, Gum Health and Deep Clean+.

Does the listing specify how it is powered?

It lists Corded Electric as the power configuration but also says one lithium-ion battery is required. The power details are therefore unclear in the supplied listing.

What should I know about the whitening claim?

The claim of whiter teeth in three days is conditional on White+ mode and use with a leading whitening toothpaste. The listing says actual results may vary.