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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 38 Showing 741-760 of 1,317 reviews
  • Rated 5 out of 5 stars

    Excellent toothbrush!

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

    Awesome product! Had the previous model for over 12 years and the battery was starting to wear out. Definitely worth the upgrade!

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

    Good not great

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    Posted . Owned for 8 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Good electric toothbrush, not great. Very loud. If it was quieter it would be perfect.

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

    Great Brush

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

    Never thought I would love a toothbrush.... Well it happened. I have not used the app but the bruch itself exceeds my expectations. Now we will see what my hygienist has to say!

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

    Rated 4 out of 5 stars

    Very cool smart toothbrush

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

    I love this toothbrush! It’s companion app is really cool! Makes brushing fun!

    I would recommend this to a friend
  • 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.

    Great product keeps you teeth clean and white. Has different settings

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

    Good buy!

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

    Love the different clean settings and will never go back to a normal brush.

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

    Clean

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

    It really made a difference on my teeth health. In just a few month my dentist noticed. congratulated me for the good work I had been doing and I changed nothing but the tooth brush :)

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

    Nice toothbrush

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

    This was a replacement for an older Sonicare toothbrush and automatically selects the correct brushing profile based on the toothbrush head installed at the time of use. More user friendly than the previous version. I would recommend it.

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

    Rated 4 out of 5 stars

    Nice toothbrush

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

    Nice toothbrush really makes your mouth feel clean.

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

    Sonicare

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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. I love the feel of the matt handle. It lights up hot pink on the bottom if you brush too hard.

    I would recommend this to a friend
  • Pros mentioned:
    App, Battery life, Toothbrush
    Cons mentioned:
    Price
    Tech Insider Network Member

    Rated 5 out of 5 stars

    Fantastic toothbrush

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    Tech Insider Network Member
    Posted .
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I did receive this product for my honest unbiased review. So the only bummer was receiving a white unit instead of the black one ;-) Funny thing is I recently purchased and off brand electric toothbrush that I've been pretty happy with. So this toothbrush had an uphill battle. Well, I must say I am pretty impressed. They both have their own charging stations, but what I like about this unit is the charging happens through a furnished drinking glass that sits atop the charging unit, so when you put your tooth brush in the glass it automatically charges, which is pretty cool. I actually unplugged the charging unit after the first day and the unit remains fully charged after 2 weeks. The design of the unit is a vast improvement over the old models that would get all gunked up under the brush head as well. I also like the size if the unit as it fits more comfortable in your hand. It also features a visual pressure sensor to alert you when you are brushing too hard. The unit comes with multiple brush heads that you can choose from and then set the brushing level to match, I.E. - I used the Gum Health head and setting. I did notice the back of the brush heads have a rubber edge which I find much nicer than the off brand unit that has a solid plastic back that feels like it will chip your teeth when touched accidentally. I also really liked the case that it came with for traveling. It is a hard case so your unit wont accidentally turn on in your travel bag. Almost forgot, this toothbrush has it's own Smartphone App. This app syncs with the brush and can guide you through your session, It shows you where you are brushing and when to move to the next area etc. Pretty cool if you are into technology. I did give my other brush to the wife as I do like this one a little better than the off brand. That being said, they are very similar at their ability to clean teeth, but this Sonicare is about $150.00 more. Not sure I would spend that much on a toothbrush. However, if you want a great sonic toothbrush that is very easy to charge, does a great job on your teeth, is built solid and includes a great smart phone app, this is probably your best choice. Pros: Ease of Charging Long Battery life Built solid Multiple settings and brush types Easy clean Wild Smartphone app to help you clean better Cons: Pricey

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

    Wonderful

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    Posted . Owned for 8 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I love it. You can even pair it with your phone so you can see firsthand how bad you oral care is. Definitely a motivational device. It’s great.

    I would recommend this to a friend
  • 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.

    I recommend this product. It cleans very well, it's light weight. My older Phillips toothbrush was heavy. I really hope whitening function works, just started using it.

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

    Various settings and works great!

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

    The toothbrush is awesome and had several modes and settings.

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

    Works great 1 year later

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

    Works great 1 year later. Wish battery life would have status bar.

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

    Excellent Product

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

    ..............Couldn't ask for a better brush!!............

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

    Excellent Phillips toothbrush

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

    Excellent Phillips toothbrush toothbrush is very well-made and it comes with a carrying case for travel has three adjustable settings fast medium is slowWould recommend to a friend

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

    Rated 1 out of 5 stars

    Failed 8 in 8 months

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

    Sonic Care was kind enough to send a replacement, unfortunately it was also dead on arrival. First one the metal shaft became loose and the replacement wouldn’t charge. They take 7 days to send a replacement. When I called to inform them the replacement also didn’t work, they told me I need to let it charge for 24 hours. Ok cool but wouldn’t it light up and show it charging like the other exact same model does in the exact same charger? Apparently not. Moral of the story buy a replacement plan for best buy if you purchase this product. It works great, when it works

    No, I would not recommend this to a friend
    • Brand response from Philips Consumer Care
      Posted .

      Hi there,

      We appreciate the time you took to write us a feedback about your Sonicare DiamondClean Smart. We are sorry to hear that it did not live up to the longevity we have designed it to have. With this, we would like to closely inspect your device. So, if you may find the opportunity, please send us a private message on one of our official social media pages below, with the product details of your toothbrush.

      Please feel free to get in touch via Facebook (@Philips) or Twitter (@PhilipsCare). Alternatively, you can reach out to us via the contact page on our website. One of our colleagues will then try their best to help you further.

      Hope to speak to you soon!

      Kind regards,
      Philips Consumer Care PhilipsBrand-EN_US

  • Rated 5 out of 5 stars

    Great product

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

    Great product. Bought as replacement for earlier version that we dropped on hard floor and broke.

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

    Rated 4 out of 5 stars

    Functional

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

    It works as intended. Works well with the app. Its a bit pricy though.

    I would recommend this to a friend