2 year warranty
Discontinued
Philips Sonicare DiamondClean SmartSonic electric toothbrush with app
Complete system for a healthier mouth
Get the ultimate clean with DiamondClean Smart. Eliminate guesswork with real-time feedback and personalised coaching for superior teeth, gums, whitening and fresh breath. It's more than just a toothbrush - it's a complete oral care solution.
No. 1 Dental professional reccomended sonic toothbrush brand worldwide1
Our best toothbrush with smart sensor technology
Complete system for a healthier mouth
Personalised coaching
Smart brush head sensors
Smart brush head recognition
4 modes, 3 intensities
Removes up to 10 x more plaque* for a deep clean
Click on the C3 Premium Plaque Control brush head to experience our deepest clean. With soft flexible sides, the bristles contour to the shape of each tooth to provide 4 x more surface contact*** and remove up to 10 x more plaque from hard-to-reach areas*.
Up to 7 x healthier gums* in just 2 weeks
Click on the G3 Premium Gum Care brush head to improve your gum health. Its smaller size and targeted gumline bristles deliver gentle yet effective cleaning along the gum line, where gum disease starts. It's clinically proven to deliver up to 100% less gum inflammation* and up to 7 x healthier gums in just two weeks.*
Remove up to 100% more stains** in just 3 days
Click on the W3 Premium White brush head to remove surface stains and reveal your whitest smile. With its densely packed central stain removal bristles, it's clinically proven to remove up to 100% more stains in just three days.**
Technical specifications
Parts & Accessories
- CP0551/01
- Chrome rose
- European countries
- Cord length: 95 cm
- 2 pin
- Charge with stand or glass
- CP1205/01
- Black
- UK specific
- Cord length: 95 cm
- 2 pin
- Charge with stand or glass
- HX9052/33
- Up to 10x more plaque removal
- Up to 7x healthier gums
- Medium Soft Bristle
- Compatible with all Sonicare handles except Philips One and Kids
- HX9054/17
- Up to 10x more plaque removal
- Up to 7x healthier gums
- Medium Soft Bristle
- Compatible with all Sonicare handles except Philips One and Kids
- HX9054/33
- Up to 10x more plaque removal
- Up to 7x healthier gums
- Medium Soft Bristle
- Compatible with all Sonicare handles except Philips One and Kids
- HX6052/07
- 2 pack
- Standard size
- Click-on
- For sensitive teeth and gums
Reviews
4.4
of 5
379
Reviews
87%
recommend this product
JJ86JV
12/08/2026
United Kingdom
Verified buyer
I love Sonicare toothbrushes and this one’s the be
This is absolutely the best Philips Sonicare toothbrush I have had. And it’s my 3rd one in over 10 years. Paired with their premium heads, my teeth never felt better and cleaner.
Pros
Looks awesome, cleans even better
Cons
None
Yes, I recommend this product
This review was made for DiamondClean Smart 9400 HX9918/89 Rechargeable Toothbrush
Date of Use 2026-07-12
Yes, I recommend this product
This review was made for DiamondClean Smart 9400 HX9918/89 Rechargeable Toothbrush
Date of Use 2026-07-12
Mr Happy chappy
17/10/2024
United Kingdom
Exceptional.. it's just better than the rest
I've used The 9400 edition for over 2 years (hx9917) it just does a great job. I recall it took a while for me to get used to the higher frequency vibrations on my teeth. But don't notice it any more. I unfortunately my unit did break which was replaced free of charge under my after care. Yay.. but whilst I was waiting for the replacement I have to go back to an older oral b brush I had.. only at this point did I truly appreciate the difference and superiority of this sonicare brush.. thank you philips.. customer for life
Pros
Exceptional clean, well made, excellent battery life
Cons
Takes a while to get used to brushing your teeth differently and for me at leaste the higher frequency vibration
Yes, I recommend this product
This review was made for DiamondClean Smart 9400 HX9918/89 Rechargeable Toothbrush
Date of Use 2022-10-17
Yes, I recommend this product
This review was made for DiamondClean Smart 9400 HX9918/89 Rechargeable Toothbrush
Date of Use 2022-10-17
MurmureA12
19/01/2022
United Kingdom
Verified buyer
Review
Nice product, just go for it!!!!!!!!!!!!!!!!!!!!!!
Yes, I recommend this product
This review was made for DiamondClean Smart HX9903/13 Sonic electric toothbrush with app
Yes, I recommend this product
This review was made for DiamondClean Smart HX9903/13 Sonic electric toothbrush with app
Based on a study of over 2600 dental professionals (dentists and hygienists) conducted in the United States, Canada, China, France, Germany, Italy, Japan, Korea, the Netherlands, Switzerland, Spain, Sweden and the United Kingdom in 2023-2024.
Removes up to 7x more plaque vs. a manual toothbrush
as compared to a manual toothbrush with a leading whitening toothpaste
compared to DiamondClean
in Gum Health mode vs a manual toothbrush at 2 weeks
after 3 days of use in White+ mode vs a manual toothbrush
based on two periods of two-minute brushings per day on standard mode