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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 9 Showing 161-180 of 1,317 reviews
  • Pros mentioned:
    Cleaning

    Rated 5 out of 5 stars

    Great purchase

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

    It feels like I had a professional cleaning from the dentist every single time I use it. Very happy with this purchase

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

    Rated 5 out of 5 stars

    Even better than my original

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

    My diamond care was stolen (don’t ask) and I replaced it with this model. The brush links to my iPhone and tells me when my teeth are clean, if I am using too much pressure or moving too fast. Turns out I was brushing completely wrong with my first diamond care Small changes which have made a huge difference Turns out

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

    Rated 5 out of 5 stars

    Electric toothbrush

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Best purchase for my teeth. Brushing is fun and the cleanliness is remarkable. Dentist recommended

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

    Rated 5 out of 5 stars

    Great for good brushing habits!

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

    I'm thoroughly enjoying the use of my new toothbrush. I was already neurotic about keeping my teeth clean previously, so this just adds to that haha. It's well built and does an excellent job cleaning my teeth. I can see how the brush heads would get expensive, but I'm not really worried about that if I'm paying $200 for a toothbrush.

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

    Teeth feel so clean! Battery stays charged for so long!

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

    Rated 5 out of 5 stars

    Made my teeth better

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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 said my teeth were a lot better after I used this. The app was fun the first few times, but I lost interest. The app did teach me how to brush better.

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

    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.

    This toothbrush is one of the best automatic ones you can buy! Complete with a charging pad and a glass that will hold your brush while it charges. Easy to use and set up. The multiple heads for different needs. The motor is very strong so if you have sensitive teeth you may wanna be cautious with it.

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

    Rated 5 out of 5 stars

    Effective and educational

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

    Got this to help my son brush his teeth effectively, app has helped make sure he’s brushing all surfaces of all his teeth with the appropriate amount of force.

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

    Rated 5 out of 5 stars

    Even better than older Diamond Clean

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

    This is a replacement for my old Diamond Clean that gave up the ghost after 7 years. Feels more powerful and the app is great for teaching proper use. Teeth feel super smooth after each use. Love this powerful little brusher!

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

    Rated 5 out of 5 stars

    Great toothbrush

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

    Great toothbrush. My teeth feel cleaner than ever, or at least cleaner than when I don’t brush them. Seriously though, it works great and the battery lasts forever. Highly recommend.

    I would recommend this to a friend
  • Pros mentioned:
    Ease of use

    Rated 5 out of 5 stars

    My 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 doctor recommended I use this product - and she was right about it being one of the best. It is easy to use and I love that it recharges so that it is ready to use at any given time. An excellent product and I highly recommend.

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

    Rated 4 out of 5 stars

    Great for Gum Health

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    Posted . Owned for 7 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great, deep clean, whitening and gum health modes. My dental hygenist said my teeth and gums improved greatly after just 6 months switching from a manual brush. So easy and makes brushing a little more interesting too. Has pressure sensor so you know if youre brushing too hard.

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

    This is my 3rd or 4th Sonicare but my first “smart brush”. Brushing with the app has definitely made an improvement in my brushing. It shows me areas that I didn’t brush long enough and adds time to the session so I can go back to touch up those areas. I don’t want to brush without it now.

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

    Rated 5 out of 5 stars

    Best toothbrush I’ve ever had

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

    Purchased this toothbrush because at age 26 I decided to get braces to better my self confidence and oral health, told my wife we are getting her one. After a few brushes your teeth will feel just as clean as they do when you leave the dentist office

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

    Rated 5 out of 5 stars

    Get it!

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

    I honestly hated electric toothbrushed and never wanted to buy one. I finally caved to see if this would really be worth all the hype, it was. This is the best toothbrush I have ever had and the app and settings on this are amazing.

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

    Rated 5 out of 5 stars

    Phillips

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

    I absolutely love this toothbrush and my wife was jealous and wanted me to return her waterpik electric toothbrush for this one. The feel after a brush is night and day from my old Oral B electronic toothbrush. Best investment on a toothbrush to date.

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

    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.

    If you want a flexible quality toothbrush you can't go wrong with the Sonicare. I especially like the glass holder/charger, makes a bathroom look some much nicer than a simple charger mount. I also like the flexible tips, cleaning options and the 6/20 interval over the 4/30 of my last toothbrush.

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

    Rated 4 out of 5 stars

    Works very well, not sure I need the "smart" app

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

    I was replacing my old rotary electric. My dental hygienist recommended the brush type over the rotary type, and I saw this model on most of the "best electric toothbrushes" lists I saw. I'm glad I got it - I'm amazed how much better it this sonic type cleans my teeth - outstanding. However, I'm not sure I need the "smart" app. My recommendation would be to go a step down in models - get the same type without the app.

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

    Rated 4 out of 5 stars

    Sonicare Diamond

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

    Really light weight cleans good and goes to places that standard brush don’t reach. Like the app as well very interesting

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

    Rated 5 out of 5 stars

    Great ET

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

    Been using the diamond clean series for years now. Such a great electric toohtbrush, has a premium feel and leaves your teeth squeaky clean.

    I would recommend this to a friend