Philips Sonicare DiamondClean 9000 HX9911/88 Electric Toothbrush

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Product guide

Philips Sonicare DiamondClean 9000 HX9911/88 Electric Toothbrush

HX9911: The Philips Sonicare DiamondClean 9000 is a rechargeable electric toothbrush supplied with a C3 Premium Plaque Control brush head, travel case and charger. Four named brushing modes, three intensity levels and app connectivity give buyers options for tailoring their routine, while customer feedback raises concerns about battery life and durability.

At a glance

Four named modes cover everyday cleaning, whitening, gum care and a deeper-clean setting.
Three intensity levels let users choose between gentler and stronger brushing.
A pressure sensor and Sonicare app are described as aids for brushing guidance.
Travel case and charger base and puck are listed among the included components.

Price

£104.99Save 65%

Reference price: ~~£299.99~~

Price checked: 12 Nov 2026

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Often bought together

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Philips Sonicare C3 Premium Plaque Defence, Genuine Replacement Toothbrush Heads, White, 4 Pack, HX9044/87

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Pros and cons

Pros

The four brushing modes and three intensity levels offer more choice than a single fixed routine.
The pressure sensor and app connectivity provide additional guidance while brushing.
The listed travel case is useful for carrying the handle and brush head when away from home.

Cons

Customer feedback includes concerns about battery life and reports of durability problems.

Technical specifications

18 specifications

Identity
Brand	PHILIPS
Model	Philips Sonicare DiamondClean 9000 Series Power Electric Toothbrush Special Edition

Power and battery
Power configuration	Rechargeable
Battery type	1 Lithium Ion batteries required.

Brushing and features
Brushing modes	Clean, Deep Clean+, Gum Health and White+
Intensity levels	three intensity settings
Settings listed in product details	7
Pressure sensor	Built-in smart sensors let you know when you're using too much pressure
Connectivity	Bluetooth connectivity
Brush head	1 x C3 Premium Plaque Control brush heads
Brush head shape	Diamond Shaped
Bristle material	Nylon
Handle material	Plastic
Motion	Vibrate
Colour	Blue
Age range	Adult

Dimensions and origin
Package dimensions and weight	26.2 x 15.5 x 10.3 cm; 640 g
Country of origin	China

What to know before buying

Listing details to confirm

The listing is inconsistent about sonic vibration speed: one claim says 62,000 pulses every minute while the product description says 31,000. The details field lists seven settings, but the description specifies four modes and three intensity levels. Treat whitening claims as conditional: the stated three-day result is in White+ mode using a leading whitening toothpaste, and actual 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
Two-year global warranty

Who is it for?

A good fit for

Adults wanting an electric toothbrush with multiple modes, adjustable intensity and app-connected guidance.
Buyers who want a listed travel case and charger alongside one C3 Premium Plaque Control brush head.

Less suited to

Buyers who prioritise dependable battery life or long-term durability, given the reported customer concerns.

Philips Sonicare DiamondClean 9000 HX9911/88 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 both favourable and strongly unfavourable views. Battery life and durability draw negative reports, including charging problems and units reportedly failing within months or breaking within a year. For buyers relying on a rechargeable brush for daily use or travel, those concerns matter despite the listed travel case and charging base. The aggregate ratings also include a substantial one-star share, so the overall picture is not uniformly positive.

Negative themes

Customers report concerns about battery life, including charging problems and failures after several months.
Durability concerns include reports of toothbrushes breaking within a year.

Mixed feedback

Customer views on product quality range from excellent to very poor.
Opinions on value for money are divided, with some considering it worthwhile and others overpriced.

Frequently asked questions

Which brushing modes are listed?

The product description names Clean, White+, Gum Health and Deep Clean+. It also describes three intensity settings.

What is included in the listed package?

The stated components are the DiamondClean 9000 handle, one C3 Premium Plaque Control brush head, charger base and puck, travel case and user manual. A two-year global warranty is also listed.

Are the whitening results guaranteed?

No. The listing ties its three-day whitening claim to White+ mode and a leading whitening toothpaste, and says actual results may vary.

What do customers report about battery life and durability?

Feedback is mixed overall and includes negative concerns about charging and battery life, as well as reports of toothbrushes breaking within a year. These are customer reports, not a guarantee of how an individual unit will perform.