Philips Sonicare DiamondClean 9000
Our verdict · Sonic cleaning that's gentle on gums without feeling weak on plaque.
Buy it if
Gentle high-frequency sonic action suits sensitive gums
Skip it if
Sonic brushing feels less 'scrubbed clean' to some users
Where to get it
Philips Sonicare DiamondClean 9000
From ~£180 (indicative; often reduced from a higher RRP)
Indicative price at the time of review.
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If Oral-B's oscillation feels too aggressive for your gums, the DiamondClean 9000's sonic action is the classic alternative. It drives the bristles at high frequency to move toothpaste and saliva between teeth and along the gumline, which many people with sensitivity find more comfortable. You get several modes and intensity levels, a pressure sensor and app connectivity, plus Philips' premium finish and a charging travel case. It is a flagship price, but like the Oral-B it rarely sells at full RRP, and the softer sonic feel wins loyal fans among those who find rotating heads harsh.
The good & the bad
Pros
- Gentle high-frequency sonic action suits sensitive gums
- Adjustable modes and intensities to dial in comfort
- Premium build with charging travel case included
Cons
- Sonic brushing feels less 'scrubbed clean' to some users
- Genuine replacement heads are a recurring premium cost
How it compares
| Pick | WATTB Score | Price | Best for |
|---|---|---|---|
| 1.Oral-B iO Series 9 | 96/100 | From ~£250 (indicative; frequently discounted well below RRP) | overall |
| 2.Philips Sonicare DiamondClean 9000This pick | 92/100 | From ~£180 (indicative; often reduced from a higher RRP) | gum health |
| 3.Oral-B Pro 3 3000 | 90/100 | From ~£40 (indicative; regularly on offer) | value |
| 4.Suri Sustainable Sonic Toothbrush | 86/100 | From ~£95 (indicative; brush-head refills by subscription) | sustainable choice |
| 5.Philips Sonicare ProtectiveClean 4300 | 82/100 | From ~£40 (indicative; often reduced) | sensitive teeth and beginners |
Key facts
- Best for
- gum health
- Typical cost
- From ~£180 (indicative; often reduced from a higher RRP)
- Cleaning tech
- Sonic (high-frequency vibration)
- Modes
- Multiple modes with intensity settings
- Pressure sensor
- Yes
- Battery
- Around 2 weeks per charge
- Extras
- App connectivity and travel charging case
Researched by WATTB
- Published
- 31 August 2026
- Updated
- 31 August 2026
- Last verified
- 31 August 2026
We research and rank options from public data, official information and published reviews. How we research →
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