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Customer Ratings & Reviews

Your price for this item is $229.99

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 10 Showing 181-200 of 1,317 reviews
  • 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

    SQUEEKY CLEAN

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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 more cleaning done in 2 minutes than most do all day with a traditional toothbrush. Teeth not only feel great, they are smooth and bright.

    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

    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:
    Battery life

    Rated 5 out of 5 stars

    Best toothbrush available

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    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Love my sonicare! The battery life is amazing and it also has the best technology to keep teeth clean and prevent cavities and gum disease.it’s worth it to pay for this electric toothbrush.

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

    Rated 4 out of 5 stars

    Makes brushing easier and more fun

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

    So I was never big on the "smart" aspect of teeth brushing until I got the new toothbrush. The app is really easy to install and use and provides helpful information as you are brushing to make sure you are getting all the parts of your mouth. It also makes it easier to make sure you are brushing for at least 2 mins which I think is very beneficial without having to set a timer.

    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:
    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:
    Toothbrush

    Rated 5 out of 5 stars

    Feel a Sense of Cleanliness in your Mouth

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

    Great tool for through brusing and brush heads for cleaning all around your mouth that will make you feel you brushed your teeth in a more complete fashion then a regular manual toothbrush. Plenty of different brush settings depending on the brush head your using.

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

    Rated 5 out of 5 stars

    Shock your dentist.

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

    Your dentist will be amazed by your routine. It clean really well and is very interactive with the app. Very worth it.

    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

    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 powerful and good cleaning toothbrush So glad I have it

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

    Good toothbrush

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

    Great toothbrush, excellent deal… but replacement heads are ricola ridiculously expensive.

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

    Rated 5 out of 5 stars

    Very good toothbrush

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

    Good, high quality toothbrush. Good selection of brush heads. Wide range of settings.

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

    Rated 5 out of 5 stars

    Best toothbrush and Dentist recommend

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

    Best power toothbrush. My dentist recommended and love how clean it makes my teeth. This is the 2nd one that I have purchased.

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

    Rated 5 out of 5 stars

    She loves it

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

    Bought this for the wife and she loves it. Takes a bit of getting used to with being the first toothbrush like this, but after a few weeks she loves it. Highly recommend to anyone looking for a great clean feeling!

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

    Best toothbrush Eva

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

    The new technology not only is very powerful but the head moves back and forth and up and down in a sweeping motion. Feels like I went to the dentist every time wi brush.

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

    Rated 5 out of 5 stars

    Christmas Gift

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

    Great investment. Worth the price and leaves teeth feeling clean and mouth feeling fresh

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

    Rated 4 out of 5 stars

    Great clean, maybe not better than cheaper model

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

    Excellent job for tooth and gum cleaning - feels like my mouth has been pressure-washed :) I think the only major difference between this and the cheaper model is the "whitening" mode which is just the regular brush mode with two extra focused sessions on the upper and lower front teeth. The buttons also look slightly different, but functionally it seems the same.

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

    Rated 4 out of 5 stars

    Great product... high price

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

    This is an excellent product. I bought for me 13yo son who hadn’t been brushing properly. The results have been positive, he is now spending longer brushing he s teeth and it shows (my dad is a dentist). I haven’t used it personally, but I have a previous model that I am happy with. If looking to upgrade from one that already uses diamond heads, I’d pass. But if you are going to buy a new electric toothbrush this is the one you should get. I hope this helps

    I would recommend this to a friend