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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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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 22 Showing 421-440 of 1,317 reviews
  • Pros mentioned:
    Toothbrush

    Rated 5 out of 5 stars

    Good

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

    Phenomenal cleans and whitens the teeth comfortably and efficiently with several different heads

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

    Rated 5 out of 5 stars

    Electric toothbrush

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

    Very nice electric toothbrush. This is by far superior to other models.

    I would recommend this to a friend
  • Pros mentioned:
    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 just love it. My teeth are super clean, it has different speeds for different results. I highly recommend it. It’s worth the orice

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

    “Nice upgrade “

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

    Purchased this brush to replace an older Oral B model. I like the sonic action better than rotating brush head . The brush is loaded with features and love the gum health function. The charging stand and glass are unique. I use the app once in awhile. I have had the brush for 3 weeks and have already noticed a difference. Strongly recommend.

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

    Rated 5 out of 5 stars

    Brush brush brush!

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

    It’s important to keep your teeth cleaned and this baby will do the job. With multiple heads it can clean, whiten, and protect!

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

    Rated 5 out of 5 stars

    Worth an upgrade

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

    Great toothbrush. Had an older, lower model and this was well worth the upgrade!

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

    Rated 5 out of 5 stars

    Highly recommended!

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

    This rechargeble toothbrush is amazing and keeps my teeth clean and healthy.

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

    Rated 5 out of 5 stars

    Another great buy!

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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 an incredible buy! Bestbuy is my first stop for electronic items!

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

    Rated 5 out of 5 stars

    good brush

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    Posted . Owned for 1.5 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Very good tooth brush and got after my dentist recommended it to me and seems to do the job.

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

    Rated 5 out of 5 stars

    Best toothbrush

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    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Very nice on my teeth the battery life is very good. Definitely recommend

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

    Rated 5 out of 5 stars

    Best toothbrush

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    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Very nice on my teeth the battery life is very good. Definitely recommend

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

    Rated 5 out of 5 stars

    Toothbrush

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

    Teeth felt amazing better then the regular toothbrushes

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

    Rated 5 out of 5 stars

    Great

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

    This is a really cool toothbrush, must have if you need one

    No, I would not recommend this to a friend
  • Cons mentioned:
    Price

    Rated 4 out of 5 stars

    Good overall

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

    Good overall, wish you could expand the default timings of cleaning modes. I feel it should be more affordable for what you get.

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

    Rated 5 out of 5 stars

    Toothbrush

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

    My toothbrush is great I'm happy to have it I recommend it to everyone be a genius

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

    Amazing

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

    I had never been into electric toothbrushes until a few years ago, and this 1 is the reason why.

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

    Rated 5 out of 5 stars

    Awesome

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

    Very powerful and smart. Built strong. Cordless charging is truly nice. I like how the app keeps track of how long you brush.

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

    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.

    I love this Philips Sonicare diamond series black. I enjoy brushing with this series.

    I would recommend this to a friend
  • Pros mentioned:
    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've had a different electric toothbrush in the past and my teeth have never felt cleaner than after I use this toothbrush

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

    Better than regular brushing

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

    It is better than old fashioned brushing. I have braces and it takes a little longer than normal to brush now, but it leaves my mouth way cleaner than before. I bought it mainly because of plaque buildup that regular brushing just couldn’t really keep up with. This has hands down helped with plaque. The wireless charging is a plus (wish it did have some type of usb plug to it). The only issue I have is that you only have timed settings and programs. Really wish there was just an off and on option. And the 20 second buzzing intervals to let you know to switch sides while brushing is pretty annoying because it stops brushing for a split second. Wish you could toggle that option off or on. Other than those things, it’s a solid brush.

    I would recommend this to a friend