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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 17 Showing 321-340 of 1,317 reviews
  • 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:
    Cleaning

    Rated 5 out of 5 stars

    The best i have used

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

    Truly this is the best toothbrush I have ever used. I use to see hygienist quarterly before I started using the DiamondClean. Now once a year.

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

    Rated 5 out of 5 stars

    Super clean

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

    Got this for my wife for xmas, she loves it! The app helps her brush evenly and she really loves the features. The charging glass is amazing. All around a great purchase

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

    Rated 5 out of 5 stars

    Dentist like cleaning every day

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

    Your teeth are so much cleaner with this, you'll notice a difference, other electric toothbrushes don't compare, it's worth every penny.

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

    Rated 4 out of 5 stars

    Great hi-end toothbrush

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

    Works great. I wish the bristles on the included brush heads were a bit softer but otherwise a very useful toothbrush. I love using the smart apps on my phone to monitor and improve my brushing techniques. Definitely recommend this product

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

    Rated 5 out of 5 stars

    Tooth Fairy No More

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

    The best toothbrush on the planet. And i got lucky with the price 94$

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

    Rated 5 out of 5 stars

    Best Toothbrush

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

    Honestly one of the best toothbrushes ever!! Does a great job!!

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

    Rated 5 out of 5 stars

    Good

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

    Finally bought my first electric toothbrush and I don’t know why I waited so long! Awesome toothbrush. Teeth feel much nicer and cleaner than using a normal toothbrush.

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

    Rated 5 out of 5 stars

    Toothbrush

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

    This is my second toothbrush, the first one I had for the longest time and I left it in another country on a trip. The best brush ever!!

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

    Rated 5 out of 5 stars

    Great Toothbrush

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

    I purchased this toothbrush to replace my Oral B Professional that lasted many years. I am very happy with the toothbrush. My teeth feel amazing. My breath feels a lot fresher. I like the app and find that I do actually get a cleaner feel using the app versus not. Sometimes it's not convenient, but I still try to use it for every brush even after a month. I am very interested in getting one of these toothbrushes for my kids next!!

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

    Rated 5 out of 5 stars

    Hums like a kitten! Much better than Oral B

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

    Amazing! My wife’s teeth have never been cleaner! So much better than the Oral B we had.

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

    Rated 5 out of 5 stars

    Great New Features

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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 the ability to be able to control the speed of the brush and the app is a great feature to help notify me when to change my toothbrush head

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

    Quick exchange

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

    Quick, efficient ex has. Will always use Best Buy's warranty!

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

    Rated 5 out of 5 stars

    Sonicare

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

    Skeptical at first but simplifies the process and 2 straight visits to the dentist with no cavaties..which is rare for me haha

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

    Rated 5 out of 5 stars

    Super clean teeth

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

    I am crazy about this toothbrush! The head is on the smaller side so it’s easy to get back in the hard to reach places! There is also an ap for the phone! Too cool!

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

    Rated 5 out of 5 stars

    Great electric toothbrush

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

    This toothbrush is easy to use and great for travel. The charge lasts a long time, it comes with a travel case and the app is easy to setup and track your use.

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

    Rated 5 out of 5 stars

    Best I've ever had

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

    Had oral b for years and was happy with it. Kid dropped it in the toilet so time for a new one..picked this up and 1st use felt like I just left the dentist for a 6 month cleaning

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

    Amazing Toothbrush

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

    Overall great product, easy to use, and super intuitive with the brushing. Easily recommend to anyone!

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

    Rated 5 out of 5 stars

    Excellent

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

    Excellent toothbrush, cleans really well and good to travel with.

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

    Rated 5 out of 5 stars

    Dentists are going to be jealous

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

    I feel like I just left the dentists office with how clean my teeth are.

    I would recommend this to a friend