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Customer Ratings & Reviews

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Customer reviews

Rating 4.7 out of 5 stars with 1317 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.4 out of 5 stars

  • Quality

    Rating 4.8 out of 5 stars

  • Ease of Use

    Rating 4.8 out of 5 stars

Pros mentioned filter

Cons mentioned filter

95%would recommend to a friend

Customers are saying

Customers have good things to say about the DiamondClean Smart 9300 Rechargeable Toothbrush, especially regarding its cleaning capabilities and whitening modes. Many appreciate the toothbrush itself, the helpful app, and the long-lasting battery life. Ease of use, overall performance, and design are also frequently praised, while some customers find the price to be high and have concerns about the travel case and charging.

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 14 Showing 261-280 of 1,317 reviews
  • Pros mentioned:
    App

    Rated 5 out of 5 stars

    the best for thorough brushing

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

    lots of options with this product, excellent brushing quality, the app is very helpful for observing the thoroughness of the cleaning. like the charger and the stand for keeping the brush at the sink between uses

    I would recommend this to a friend
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Great Product, would recommend

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    works great. nice accessories. powerful and long lasting battery.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Worth the money!

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

    Awesome toothbrush! Every time I use it my mouth feels extra clean. It's really easy to use And very convenient. Im going to buy a second just because. Thanks again Best Buy (:

    I would recommend this to a friend
  • Pros mentioned:
    Cleaning

    Rated 5 out of 5 stars

    Super clean

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    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I can’t explain how much this has helped me, my teeth have NEVER felt so clean

    I would recommend this to a friend
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    Satisfied

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    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Bought the toothbrush as a gift for my sister. Really happy with the product! The battery life is really long (about whole week) even if you using 3 or 4 times per day. Thanks

    I would recommend this to a friend
  • Pros mentioned:
    App

    Rated 5 out of 5 stars

    best toothbrush ever

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

    Waited for quite some time to finally buy this thing. Glad I did. It works exactly as expected. Really cleans your teeth. The app works great with it so you can keep track of your brushing habits.

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

    Keeping my teeth WHITE!

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Absolutely fantastic- especially given the amount of coffee and cigars I smoke!

    I would recommend this to a friend
  • Pros mentioned:
    Cleaning

    Rated 5 out of 5 stars

    Freaking incredible clean!

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

    This replaced an old Sonicare tooth brush. There is no comparison. I thought my old tooth brush was good, but i used this for a week before my regular dental cleaning and there was almost no plaque!

    I would recommend this to a friend
  • Cons mentioned:
    Price

    Rated 5 out of 5 stars

    A very nice brush but not cheap

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    Posted . Owned for 1 year when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works really well, I was surprised that this little toothbrush even tells you when to switch out the heads. But just keep in mind the brush heads are not cheap.

    I would recommend this to a friend
  • Pros mentioned:
    App

    Rated 5 out of 5 stars

    Solid Toothbrush with great features

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great toothbrush! I was hesitant to use one of these but I really like it. The app is great and the features are awesome. Definitely recommend!

    I would recommend this to a friend
  • Pros mentioned:
    Cleaning

    Rated 5 out of 5 stars

    Best Brush Ever

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

    I love sonicare. Now with pressure feedback. My teeth are always clean with a sonicare but my dentist said I was brushing too hard. With this brush I hope to have a better experience at the dentist next time.

    I would recommend this to a friend
  • Pros mentioned:
    Cleaning

    Rated 5 out of 5 stars

    Great clean!

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    Posted . Owned for 4 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Once you go Phillips Sonicare, you never go back! This is my third in the past 20 years. They last a long time and clean so well!

    I would recommend this to a friend
  • Pros mentioned:
    Toothbrush

    Rated 5 out of 5 stars

    Mr

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The charging system is very unique. The toothbrush is great, does an excellent job.

    I would recommend this to a friend
  • Pros mentioned:
    Toothbrush

    Rated 4 out of 5 stars

    Sonicare

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

    Only giving it four stars as I had to replace my first one just shy of two years. Coincidentally it totally died on me within a very few days of the warranty expiring. But, I do very much like my toothbrush. It does an excellent job. And, it’s very pretty.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life

    Rated 4 out of 5 stars

    Works great

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Never had an electric toothbrush. It does all the work for you, you just have to slowly move it along. Also hold a charge for a long time

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 4 out of 5 stars

    Pretty Good

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    It's very easy to use, and works really well as a toothbrush. My dentist likes it. Only issue: I found the app a little funky and hard to use. I'd recommend it, but I'm not sure it clean that much better than somewhat cheaper models.

    I would recommend this to a friend
  • Pros mentioned:
    Cleaning

    Rated 5 out of 5 stars

    Sonicare Delight

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    My dentist recommended this tooth brush and I will never go back to a regular one the type of clean you get with this brush is invigorating.

    I would recommend this to a friend
  • Pros mentioned:
    Battery life

    Rated 5 out of 5 stars

    I’d buy again.

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    Posted . Owned for 2 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I love this. Long lasting battery, great charging dock, sleek travel case, and amazing performance.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    Quick Clean

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

    For the price paid. I would say that the it is a really good value. The Tooth brush is easy to use and has a great app that allows you to track the right areas to attack when keeping your mouth clean.

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

    Rated 5 out of 5 stars

    Keeps my teeth clean

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

    I bought it to replace the one lost in the Camp Fire. It is in some ways an upgrade, comes with different brush head, but the travel case doesn't act as charger like the previous model.

    I would recommend this to a friend