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Customer Ratings & Reviews

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Customer reviews

Rating 4.7 out of 5 stars with 1317 reviews

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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

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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 13 Showing 241-260 of 1,317 reviews
  • Pros mentioned:
    Overall performance

    Rated 5 out of 5 stars

    Automatic tooth cleaner machine.

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

    It's brushing my teeth for me. What else can you ask for?

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

    Rated 5 out of 5 stars

    Perfect gift

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

    Gave it as a gift, they love it. Really teaches you how to properly brush.

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

    Rated 5 out of 5 stars

    Worth the price!

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

    Worth the price! I bought it for my teenage son because he has braces, works great!

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

    Brilliant tool = Brilliant smile

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

    It’s brilliant! I love the style, elegant finish & ergonomic.

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

    Rated 5 out of 5 stars

    Fabulous Toothbrush

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

    Best toothbrush I've had. Using it's like going to dentist for a cleaning!

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

    Rated 5 out of 5 stars

    Awesome electric toothbrush

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

    This electric toothbrush is by far the best one I have used. I've tried them all before and think this is the best yet. It also looks really nice in all black as it blends in with my bathroom colors.

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

    Rated 5 out of 5 stars

    Refreshing

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

    This is an amazing product that exceeded expectations and produces phenomenal results. I would most definitely recommend this product to anyone and everyone that has teeth’

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

    Totally worth it.

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

    This toothbrush is amazing. I went out looking for a $100 max electric toothbrush. To my surprise this one was on sale for $89 (only the rose gold). At that point I decided this was the one to get and oh man. I’m truly enjoying this one. The brush itself is amazing and the phone app makes it even better. I’m about to change the brush for the first time so I’ve been enjoying it for a few months and I can honestly say I will recommend it.

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

    Changes brushing habits

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

    I thought that I was a pro with brushing my teeth. After using this toothbrush, I definitely know that I was not! This toothbrush teaches you how to brush properly! One of the best brush’s on the market!

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

    Rated 4 out of 5 stars

    Brushing? Great! Other modes? *booing noises*

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

    Best clean feeling i've had in forever since moving from manual brushing. My dentist was impressed by the cleanliness of my teeth, was less impressed by how irritated my gums were from using the "Gum Health" setting. Won't be using that mode again. Haven't used teeth whitening mode yet.

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

    Rated 5 out of 5 stars

    Great toothbrush!

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

    Surprised at the stark contrast of using a toothbrush that has an app to tell me where, how, and how long to brush vs not using that. The results are amazing.

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

    Rated 5 out of 5 stars

    Best Toothbrush

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

    Love the new toothbrush, working great so far and also work with the app which is easily downloaded. Like having 3 different toothbrush heads to choose from. Would definitely recommend it.

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

    Electric toothbrush

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

    So far I’m Enjoying it. It did take me some time to learn how to use it effectively basically letting the tool do the work Instead of manually brushing

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

    Rated 5 out of 5 stars

    Excellent!

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

    Excellent electric toothbrush! My teeth feel like I’ve just come from the dentist every day! I’m even looking forward to my NEXT visit to the Dental Hygienist!!

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

    Rated 5 out of 5 stars

    I love it

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

    I love it feels as my teeth are being polished definitely a self investment

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

    Rated 5 out of 5 stars

    Love it!

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

    Love this product! Makes my teeth feel like I just left the dentist.

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

    Rated 5 out of 5 stars

    Sonic Brush

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

    Great for reaching those tough areas. The last, few times to the dentist office, the dentist has had great things to say. The only change has been this toothbrush.

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

    Rated 5 out of 5 stars

    Best smart toothbrush out there

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

    I've owned a Sonicare for years. Hard to believe that they keep getting smarter.

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

    Rated 5 out of 5 stars

    Love it

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

    Love it and how clean it makes my teeth feel. It is amazing!

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

    Rated 5 out of 5 stars

    Cleanest teeth!!!

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

    My teeth love this !! Will buy another for my wife!!

    I would recommend this to a friend