[This review was collected as part of a promotion.] Purchased the DiamondClean Smart 9300 as replacement to older DiamondClean product (battery wore out) and hoping to continue not having cavities. I wish for more flexibility in selecting power settings when using the 'Deep Clean+' mode, the intensity automatically defaults to low, and I have been unable to change it, despite following the user manual. I find the pressure sensor and BrushPacer guidance very helpful, however, I find the feature “When brushing with the Philips Sonicare app in 'Deep Clean+' mode, the brushing time will be 2 minutes when connected to the app and 3 minutes when not connected to the app.” tempting me to not use the app.
[This review was collected as part of a promotion.] A great toothbrush, took a little getting used to but because of the vibration, but once I did I loved it, does a great job cleaning and my teeth feel really good.
[This review was collected as part of a promotion.] My unit was Defective ..It Never Performed to Standards
I would recommend this to a friend!
Response from philips.comBy AlexandraRevekka Emmanouilidou, Philips Consumer Care, January 4, 2026
Hello!
We’re sorry to hear about your experience, and thank you for bringing this to our attention. We'd like to look into your case immediately and ensure a prompt resolution for your issue. Please consider reaching out to us.
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[This review was collected as part of a promotion.] I like the toothbrush itself. I do NOT like the charging station as I find it is cumbersome to pack up and take with me when I travel.
[This review was collected as part of a promotion.] I’ve been using Sonicare for over 30 years. I’m impressed. My dentist is impressed. It is a quality product however, if anything goes wrong it is quickly resolved
[This review was collected as part of a promotion.] This toothbrush is terrific. My teeth are not only feeling cleaner but are whiter. It’s easy to use and by syncing it to my phone, I am able to monitor my brushing methods and make improvements. Worth the purchase.