Philips Sonicare DiamondClean 9000 Electric Toothbrush - with App, Pressure Sensor, 4 Brushing Modes, 3 Intensities, Charging Stand, USB Travel Case, Black, Model HX9911/39, UK 2-Pin Bathroom Plug

Fabulous toothbrush. It changed my wife’s life as she describes it and would never go back to manual toothbrush. However it will not last forever. I am writing this 2 days after it gave out and is not charging anymore. I purchased it in January 2020 and it lasted until August 2025. Pricey but wife’s teeth she says are now healthy and clean when paired with good toothpaste - she only goes to see dentist for checkups. Shes liked the pink colour as well. Will buy another one as it was money well spent (130£ at that time).

The last time I used an Electric Toothbrush was about 40 years ago and I wasn't impressed! Following the advice of Relatives to try them again and after a great deal of research, I decided on this Diamond Clean 9000, which was fortunately on Special Offer. I must confess that when I first started using it, I thought my teeth were going to vibrate out, until I realised that I'd got it on the Highest Intensity Setting. My next concern was that it seemed to leave some of my teeth feeling a little rough to the tongue but after further research, I gather this is because, unlike my manual toothbrush, it is successfully removing the plaque. I have had it for two months now and apart from the initial charge, I've only had to charge it twice whilst using it twice daily. To be fair and honest, it took me about a month to really get used to it and get the best out of it but now I can confidently say that I love it and would not consider going back to a manual toothbrush. I have yet to use the Travel Case (Covid Lockdowns and all that) but I can see that it will be very handy for both transporting and charging the toothbrush whilst away from home. I have used the app which inspires confidence in informing you that you are brushing regularly and correctly (or not). The little stand is handy for daily storage and charging the toothbrush is simple enough. I haven't been to the Dentist since using it but I'm hoping she'll approve of my new brushing regime. No issues to date but I will edit my review accordingly. All in all, Highly Recommended, especially if you can catch it when it's on Special, Special Offer!

Great toothbrushes while they last which sadly is not very long anymore. We used to love Philips toothbrushes. My first Diamonclean 9000 series lasted between 7-8 years, then in 2023 the battery stopped working but the toothbrush itself was fine. But after that many years, you can't really complain. Naturally I opted for the same type as I was very happy with it. How very disappointing. After just under one year it broke (first made a horrible loud sound and then the rod in the toothbrush became loose, so I couldn't use it anymore). Amazon replaced it and now just over a year later, same thing: first very loud when brushing, then rod loose again. A product at this price lasting around one year is very disappointing. My husband has the same issues with these models (we're at the third one for him and the same issue with the rod becoming loose; first one was bought in November 2017 and lasted approx. 3 years, the next was bought in January 2021 and lasted 1.5 years, now this one bought in July 2022 broke in the summer of this year, so another 3 years. After many many years of using Philips we are now considering switching to Oral B and if not definitely try another model than the 9000 series. With prices between £120 - £150 per toothbrush lasting between 1 - 3 years, this is sadly not worth it anymore.

I bought this as a replacement for my older 4 and a half year old Sonicare which was starting to sound a bit unhealthy. On the whole this is a brilliant upgrade. The 4 cleaning modes all work well as expected although the standard clean mode takes a bit of getting used to. The clean mode on my old model was 4x 30 seconds while this new model is 6x 20 seconds. Small niggle but not sure why they changed it. I definitely preferred the 4x 30 seconds on my older brush. Battery life is excellent as always with Philips products. I have had this toothbrush for 2 weeks, and apart from the initial 24 hour charge it hasn't been back on the charger since. My older toothbrush used to last around a week before needing a charge. The app, however is more or less pointless and unnecessary. I can't really understand why a toothbrush needs to be connected to your phone, other than as another data gathering exercise, since most companies seem to want to know as much about you as possible. Overall, an excellent toothbrush and a great upgrade over my older Sonicare. I just hope it lasts as long! App is unnecessary

Broken after less then two years.