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Customer Ratings & Reviews

Your price for this item is $219.99

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 find value in the DiamondClean Smart 9300's superior cleaning capabilities, user-friendly app, and long-lasting battery life. Many appreciate the toothbrush's design and ease of use, though some express concerns about the high price point. A few users also mentioned issues with charging and the travel case.

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 15 Showing 281-300 of 1,317 reviews
  • 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
  • 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

    A great toothbrush

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

    Fantastic, my dentist actually asked what I use to brush my teeth. The dentist visit took like 5 minutes.

    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:
    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
  • Rated 5 out of 5 stars

    Awesome!

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

    The best toothbrush in the market! I get it, it's pricey, yes, but I promise you it's worth it. Had it over a year, came with two replacements, had to buy a couple already since it has to get replaced every so often. Works very well.

    I would recommend this to a friend
  • 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:
    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:
    App

    Rated 5 out of 5 stars

    Great

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

    Overal great toothbrush, been using the app and pretty cool too.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance

    Rated 4 out of 5 stars

    Too smart

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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 a great electric toothbrush, but after I bought it I realized I really didn't want the bells and whistles of the "smart connected" features. It nags when heads get swapped on and off, I did not use any of the other smart features.

    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
  • 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
  • Pros mentioned:
    Overall performance

    Rated 5 out of 5 stars

    Works great

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    Posted . Owned for 5 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Purchased on clearance for good price. Works fantastic..no issues

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

    Rated 5 out of 5 stars

    Unbelievable toothbrush

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

    Unbelievable toothbrush! Going from a regular toothbrush to this my teeth feel so much cleaner. The app for this is great.

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

    Rated 5 out of 5 stars

    Good product. A little expensive though

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

    Good product. I had the previous generation Sonicare brush but this has better functionality. A little expensive but delivers on quality.

    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:
    Toothbrush

    Rated 5 out of 5 stars

    Next gen toothbrush

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

    Solid toothbrush. An excellent upgrade from my 8 year old electric toothbrush

    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
  • Pros mentioned:
    App

    Rated 5 out of 5 stars

    Great brush

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

    Awesome brush. The app tells you where to spend more time brushing etc. Always had good luck with sonic care.

    I would recommend this to a friend
  • 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