TRAVEL READY - Includes a sleek travel case for on-the-go oral care.
EFFORTLESS WHITENING - Achieve a dazzling smile in just 3 days!
SMART APP CONNECTIVITY - Optimize your brushing routine with real-time feedback.
ADVANCED SONIC TECHNOLOGY - Experience 10x more plaque removal than manual brushing.
CUSTOMIZABLE CLEANING MODES - Choose from 4 modes for tailored oral care.
The Philips Sonicare DiamondClean 9000 Series electric toothbrush combines advanced sonic technology with customizable modes to deliver superior cleaning and whitening results. With a sleek design and smart app integration, it ensures optimal oral health while fitting seamlessly into your lifestyle.
Specifications
Product Name
HX9911/84 ELECTRIC TOOTHBRUSH, DC SMART,
Units
1.0 count
Country of origin
China
Brand
PHILIPS
Format
ELLIPTICAL
Age Range Description
Adult
Country of origin
China
Have a Question? See What Others Asked
What's the difference betw the one that costs £120 and the model that costs nearly £191 apart from the price
What kind of charging plug is it. it's not european and i need to find an adapter. doesn't charge with a usb?
Why battery and head replacement lights always keep flashing?
Hi, it was purchased in the uk and sent by amazon to poland. sadly it is not charging despite the lights are on. anyone hava a clue ? thanks
Reviews
4.2
All from verified purchases
B**5
New to electric toothbrush
I never used to like electric toothbrushes. Always found them too aggressive, would make my eyes vibrate, the bristles would hurt my gums and any other complaint you've probably hurd from someone. But this one i was pleasantly surprised. The vibration is limited to the head of the brush so your hand isn't vibrating like crazy try to keep your grip. You can change the level of intensity too. The bristles on the brush are so so soft but still manage an amazing clean! My teeth have never felt so clean and yet with such gentle cleaning! I just been for my check up at the dentist and they have said all of my teeth and gums are perfect scores and I have this toothbrush to thank! It's pricey but the best investment ever!
A**N
Best toothbrush ever
Love this toothbrush. My teeth have never felt so clean. Almost as good as a clean at the dentist.
K**A
My teeth are WHITER after using this! 🙌
Well I wish I’d bought this years ago! After a trip to the dentist a few months ago, she recommended this toothbrush. Pricey but SO SO worth it! I didn’t realise just how much more effective it would be cleaning my teeth compared to my non electric brush! Not only are my teeth whiter now, they also feel so much cleaner!I like how easy this brush is to use & how it has 3 power options. It’s easy to charge & keep clean and I could never go back to a standard toothbrush now!This was worth every penny ~ it’s an investment that really makes a difference to the health & appearance of my teeth & gums 👌☺️ highly recommended!
T**E
Cleans you teeth very well but breaks often and easily
Toothbrush did not last even full year, it was a present for my wife, who claims that metal pin to which you attach head became gradually more and more wobbly and now after 10 months device is useless. To stress it - it was never dropped etc., kids do not touch it, they have their own electric toothbrush, we learned hard way in previous Philips models, they clean the best on the market but break immediately when dropped. Also, often break without dropping at all, very fragile devices, I cannot understand how something so faulty can be sold for such high prices. We used many of their models over the years, all of them needed to be repaired or replaced within warranty period, much more often than Braun toothbrushes, which are much more sturdy but clean worse and are more harsh to your teeth. Beware, you used to be able to get refund directly from Amazon, the best option because if you buy new one you would be have new warranty, no longer the case, the only option is to have it repaired by Philips and they usually send you brand new replacement that usually breaks just after warranty expires (in one case it happened just before). Finally, one of the replacements sent to us was actually different colour and cheaper model with less features! It is a shame as these toothbrushes definitely clean you teeth the best on the market but for how long they last, they are very expensive items, Philips, please fix your products as if they lasted long, it would be great product, even with you highly overinflated prices.
J**G
Almost perfect.
I upgraded from the 7900 series and was surprised to see a very big difference. The vibration, charring stand, regular stands and better life are all way better, and of course incomparably better than the Oral-B lawnmower.The only drawback is the travel case - just plain cheap plastic. But i didn't buy this for travel anyways so no real fuss for me.
A**R
My second Sonicare brush
I had to replace my previous 5 year old Sonicare electric toothbrush, no question about it I was going to get another one. Hopefully this one will last as long as my previous one. Great price in the sales. Easy to use. The blue toon synced app works an shows untouched lots of info but it’s a bit gimmicky for me and I don’t use the app when brushing. I don’t see why I would be taking my phone into the bathroom to brush my teeth. But other than that I like the Sonicare brush a lot. I never have any issues with the dentist a they can always tell when you use something as good quality like a Sonicare brush, compared to a regular brush. Charge time is not an issue for me, comes with a handy travel case too.
L**N
Recommended
This is an excellent toothbrush.I tried Braun but was disappointed with the results.This Toothbrush from Philips is superior in every aspect.
J**L
Amazing product
Before this, I’ve never really used an electric toothbrush before. And now, I can’t even imagine going back to standard toothbrushes! It’s really easy to ease, the quality is amazing, and it does a really good cleaning job. The battery could be a bit better and it would be nice to have like an indication that the battery is running low before it powers off. It does however still work a tiny bit after it switches off which is fine. Good value for money!
Common Questions
Trustpilot
TrustScore 4.5 | 7,300+ reviews
Pooja R.
The customer service exceeded my expectations. Perfect for buying products you can't find elsewhere.
1 week ago
Ali H.
Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.
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Always found them too aggressive, would make my eyes vibrate, the bristles would hurt my gums and any other complaint you've probably hurd from someone. But this one i was pleasantly surprised. The vibration is limited to the head of the brush so your hand isn't vibrating like crazy try to keep your grip. You can change the level of intensity too. The bristles on the brush are so so soft but still manage an amazing clean! My teeth have never felt so clean and yet with such gentle cleaning! I just been for my check up at the dentist and they have said all of my teeth and gums are perfect scores and I have this toothbrush to thank! It's pricey but the best investment ever!"},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"A***N"},"datePublished":"21 April 2025","name":"Best toothbrush ever","reviewBody":"Love this toothbrush. My teeth have never felt so clean. Almost as good as a clean at the dentist."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"K***A"},"datePublished":"17 February 2025","name":"My teeth are WHITER after using this! 🙌","reviewBody":"Well I wish I’d bought this years ago! After a trip to the dentist a few months ago, she recommended this toothbrush. Pricey but SO SO worth it! I didn’t realise just how much more effective it would be cleaning my teeth compared to my non electric brush! Not only are my teeth whiter now, they also feel so much cleaner!I like how easy this brush is to use & how it has 3 power options. It’s easy to charge & keep clean and I could never go back to a standard toothbrush now!This was worth every penny ~ it’s an investment that really makes a difference to the health & appearance of my teeth & gums 👌☺️ highly recommended!"},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"1.0"},"author":{"@type":"Person","name":"T***E"},"datePublished":"10 May 2024","name":"Cleans you teeth very well but breaks often and easily","reviewBody":"Toothbrush did not last even full year, it was a present for my wife, who claims that metal pin to which you attach head became gradually more and more wobbly and now after 10 months device is useless. To stress it - it was never dropped etc., kids do not touch it, they have their own electric toothbrush, we learned hard way in previous Philips models, they clean the best on the market but break immediately when dropped. Also, often break without dropping at all, very fragile devices, I cannot understand how something so faulty can be sold for such high prices. We used many of their models over the years, all of them needed to be repaired or replaced within warranty period, much more often than Braun toothbrushes, which are much more sturdy but clean worse and are more harsh to your teeth. Beware, you used to be able to get refund directly from Amazon, the best option because if you buy new one you would be have new warranty, no longer the case, the only option is to have it repaired by Philips and they usually send you brand new replacement that usually breaks just after warranty expires (in one case it happened just before). Finally, one of the replacements sent to us was actually different colour and cheaper model with less features! It is a shame as these toothbrushes definitely clean you teeth the best on the market but for how long they last, they are very expensive items, Philips, please fix your products as if they lasted long, it would be great product, even with you highly overinflated prices."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"4.0"},"author":{"@type":"Person","name":"J***G"},"datePublished":"22 February 2025","name":"Almost perfect.","reviewBody":"I upgraded from the 7900 series and was surprised to see a very big difference. The vibration, charring stand, regular stands and better life are all way better, and of course incomparably better than the Oral-B lawnmower.The only drawback is the travel case - just plain cheap plastic. But i didn't buy this for travel anyways so no real fuss for me."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"A***R"},"datePublished":"13 January 2025","name":"My second Sonicare brush","reviewBody":"I had to replace my previous 5 year old Sonicare electric toothbrush, no question about it I was going to get another one. Hopefully this one will last as long as my previous one. Great price in the sales. Easy to use. The blue toon synced app works an shows untouched lots of info but it’s a bit gimmicky for me and I don’t use the app when brushing. I don’t see why I would be taking my phone into the bathroom to brush my teeth. But other than that I like the Sonicare brush a lot. I never have any issues with the dentist a they can always tell when you use something as good quality like a Sonicare brush, compared to a regular brush. Charge time is not an issue for me, comes with a handy travel case too."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"L***N"},"datePublished":"31 March 2025","name":"Recommended","reviewBody":"This is an excellent toothbrush.I tried Braun but was disappointed with the results.This Toothbrush from Philips is superior in every aspect."},{"@type":"Review","reviewRating":{"@type":"Rating","ratingValue":"5.0"},"author":{"@type":"Person","name":"J***L"},"datePublished":"10 February 2025","name":"Amazing product","reviewBody":"Before this, I’ve never really used an electric toothbrush before. And now, I can’t even imagine going back to standard toothbrushes! It’s really easy to ease, the quality is amazing, and it does a really good cleaning job. The battery could be a bit better and it would be nice to have like an indication that the battery is running low before it powers off. It does however still work a tiny bit after it switches off which is fine. Good value for money!"}],"aggregateRating":{"@type":"AggregateRating","ratingValue":4.375,"bestRating":5,"ratingCount":8}},{"@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What's the difference betw the one that costs £120 and the model that costs nearly £191 apart from the price","acceptedAnswer":{"@type":"Answer","text":"Basically the number of functions/options"}},{"@type":"Question","name":"What kind of charging plug is it. it's not european and i need to find an adapter. doesn't charge with a usb?","acceptedAnswer":{"@type":"Answer","text":"It’s a round shaver / European plug. On registering the toothbrush with Philips I got a 10% off voucher and bought the USB charger which is much easier to use."}},{"@type":"Question","name":"Why battery and head replacement lights always keep flashing?","acceptedAnswer":{"@type":"Answer","text":"Battery light will flash when it needs charging, head light will flash when head needs changing. If you have changed the head and charged the brush then the seal could have broken on the bottom or top of the brush and water has got into it. If still under warranty contact amazon first and then the manufacturer"}},{"@type":"Question","name":"Hi, it was purchased in the uk and sent by amazon to poland. sadly it is not charging despite the lights are on. anyone hava a clue ? thanks","acceptedAnswer":{"@type":"Answer","text":"Not sure what your voltage is but it is not charging send it back."}}]}]}
