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Customer Ratings & Reviews

Your price for this item is $131.99
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The comparable value price 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 51 Showing 1,001-1,020 of 1,317 reviews
  • Rated 5 out of 5 stars

    Fits perfectly.

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

    Fits perfectly. Takes less than 50 characters, too.

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

    Much better results than expected

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

    Much better results than expected. Would buy again

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

    Best toothbrush!

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

    This toothbrush makes my teeth feel clean and smooth!

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

    Amazing

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

    Best product by far! Worth every penny. Very durable!

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

    Excellent

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

    Really good. I would highly recommend it to anyone

    I would recommend this to a friend
  • 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.

    Love the toothbrush. the app works great with it too

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

    Great Product

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

    Great product! It was exactly what I was expecting and more.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    Best brush ever

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

    Great brush . Only reason it gets 4 out of 5 stars is due to the on / off button already malfunctioning after only 2 months Otherwise great

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

    Rated 5 out of 5 stars

    Would not change for anything!

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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 toothbrush. I love that it times you on your brushing so you get a full 2 minutes of brushing before it turns off. It makes my teeth feel so much cleaner and healthier.

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

    Rated 4 out of 5 stars

    Great Expensive Toothbrush

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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 a great toothbrush but it should be for the price. I bought this for my wife after hers went bad. I’ve been using the black version for about a year and it cleans your teeth well plus I like the charging dock. The other issue I’ve had is the pressure sensitivity seems to be a bit wonky.

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

    Rated 5 out of 5 stars

    Great tooth brush

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

    Excellent toothbrush my teeth never felt so clean and it forces you to brush your teeth little bit longer because it’s on a two minute timer best toothbrush I ever owned

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

    Exellent toothbrush

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

    Far better than the lower priced electronic toothbrushes.

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

    Best tooth brush

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

    I LOVE this tooth brush. My teeth always feel clean

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

    Great Product

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

    Great product, I highly recommend. Clean and white teeth.

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

    works well - easy to use and nicely designed

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

    I used to have an electric toothbrush that somehow disappeared in a move last year - I didn't bother to get a new one but was missing it because all my cola drinking was staining my teeth and I wondered if it would help. I researched a number of toothbrushes and am thrilled with this one. It's definitely an upgrade from my last one but I'm digging the way it works, the different options it provides in brushing style and my teeth feel and look great - within 2 days, the staining went away and I finally feel like I'm really hitting the back of the teeth (that's where I'm told I miss when I'm at the dentist). So far so good!

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

    Rated 4 out of 5 stars

    Teeth feels cleaner!

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

    Lightweight and great design! Does the job very well!

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

    Rated 5 out of 5 stars

    Excellent Performance

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

    I get up in the morning knowing my teeth are cleaner with this product! Highly recommend.

    I would recommend this to a friend
  • 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.

    Great product, I absolutely love. Awesome purchase.

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

    Leaves teeth extra white

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

    The intense vibration activity removes all plaque.

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

    Rated 3 out of 5 stars

    Great toothbrush

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

    It is an amazing toothbrush with a lot of options but it does have a huge price tag.

    I would recommend this to a friend