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Customer Ratings & Reviews

Customer reviews

Rating 4.6 out of 5 stars with 105 reviews

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Rating by feature

  • Value

    Rating 4.3 out of 5 stars

  • Quality

    Rating 4.6 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

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Cons mentioned filter

93%would recommend to a friend

Customers are saying

Customers often highlight the DiamondClean Smart Electric Toothbrush's superior cleaning performance and the variety of brush heads included for different oral care goals. The long battery life and helpful app are also appreciated, along with the sleek design and pressure sensor. A minor drawback is that the travel case does not function as a charger.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 6 Showing 101-105 of 105 reviews
  • Pros mentioned:
    Brush head
    Tech Insider Network Member

    Rated 4 out of 5 stars

    Helps develop better hygiene habits

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    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This is definitely the fanciest toothbrush I've ever used. Pairing a toothbrush to my phone seems crazy. The real benefit to it though, is to help you develop better brushing habits. Of course that still requires some commitment from you, but if you're brushing regularly, but still getting cavities, this may get you on the right track. The catch is, you actually need the app open on your phone when starting a brushing session. The benefit to this is that it will tell you which area to brush, and will keep track of areas you have brushed. This helps with making sure you haven't missed anywhere. Once you've learned the pattern, you can go without the app, and just learn to switch areas when the brush momentarily pauses. It will double pause (if I remember correctly) if you are pressing too hard as well, so it also helps coach you with the appropriate amount of pressure. Once your phone is in range of the toothbrush, it will sync your brushing sessions, but it doesn't keep track of the areas your brushed, but it does track time and overall pressure. If you're really dedicated, it has some other features, such as adding areas of plaque buildup, bleeding areas, potential cavities, and gum recession. The only thing I wish it had was some gentle nudges to brush if I missed/skipped brushing, flossing, etc... It comes with a nice solid glass that you can use for holding the toothbrush, and holds the charger under it, so the toothbrush can charge while in the cup. This also means you could use the cup for rinsing your mouth too (if only I could remember to put it in the dishwasher). The battery is not replaceable. As a matter of fact, they have instructions for removing the battery for recycling, and it involves permanently breaking the bottom of the toothbrush to remove the battery. Planned obsolescence and I don't like it.

    I would recommend this to a friend
  • Pros mentioned:
    Cleaning performance
    Tech Insider Network Member

    Rated 5 out of 5 stars

    Smart features that can encourage better brushing

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    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I’ve used the basic Sonicare toothbrushes for many years. They have been reliable and long lasting while also being good at what they are made for - brushing teeth. This 9300 series brush adds some genuinely useful smart features while being a more premium product overall than the basic Sonicare brushes I have used in the past. In the box you will find the brush with two heads, a travel case, and a customizable charging “cup”. You can place the brush in the cup or customize it to be more like a stand. The cup/stand piece is washable to keep it clean. The travel case is very premium feeling. The actual brushing experience is exactly as I expected from being accustomed to previous Sonicare brushes. The sonic vibration works just the same and your teeth end up feeling very thoroughly cleaned. The real significant features with this toothbrush come with the Bluetooth and app functionality. I downloaded the Sonicare app and my phone immediately detected the brush. Here, you can keep track of how often and how long you brush, and there is also a clean feature where you can see which teeth you may have missed. This is genuinely useful, as it keeps you on track to brush evenly throughout. It also tells you if you’re moving too fast or putting too much pressure on the teeth. Overall the smart features are easy to use and are genuinely useful, and certainly can help a person maintain better dental health.

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    Must buy!

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great toothbrush. Has many setting for a clean brush.

    I would recommend this to a friend
  • Cons mentioned:
    Travel case

    Rated 5 out of 5 stars

    Great toothbrush

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Toothbrush is great. Wish the carrying case included charging as in previous versions.

    I would recommend this to a friend
  • Rated 1 out of 5 stars

    2 year life

    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The brush died after 2 years. The button seemed to need to be pressed a couple of times before turning on for about a week. Then it just died. For the amount of money I spent on this my toothbrush should last at least 5 yrs. Very upset bc this was an investment gone to waste.

    No, I would not recommend this to a friend
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