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Customer Ratings & Reviews

Your price for this item is $218.99
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The comparable value price 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 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 8 Showing 141-160 of 1,317 reviews
  • Pros mentioned:
    App

    Rated 5 out of 5 stars

    The Best Toothbrush That I Have Owned!

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

    I absolutely love this toothbrush, because the app helps you brush your teeth perfectly. I also have gum issues that this toothbrush helps me take care of. I also love that both the brush and the app let me know if I’m brushing too hard or moving the brush too quickly. Definitely the best toothbrush that I’ve ever owned!

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

    Rated 5 out of 5 stars

    Definite upgrade

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

    Upgraded from a diamondclean to the newer model and for the little extra dough it works wonders! Comes with three toothbrush heads to help with different areas of oral health (gums, whitening, plaque buildup) it’s easy to sync to the app. You literally open the app and turn on the toothbrush, pretty dang easy! Plan on buying another, the teeth whitening part of these toothbrushes makes it worth it for the price alone

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

    Rated 5 out of 5 stars

    Awesome toothbrush

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

    This is definitely one of the best investments I made in my dental care! I was skeptical about the app and all the bells and whistles but I'm so glad I took the chance. I dont always use the app but I've learned to brush better and it's useful as a guide. Even a little fun! Yes, it is quite pricey and I'm not really one to spend so much on a toothbrush but this one was worth it.

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

    Rated 5 out of 5 stars

    Philips toothbrush

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

    I would never know I would buy a toothbrush at this price in my life but I'm happy I did. I have owned 2 other sonic care Philips toothbrushes but this one is so far superior. I enjoy it, the app for it is very helpful. I would recommend it over n over

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

    Rated 5 out of 5 stars

    Teeth feel amazingly clean!

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

    This brush has continued to impress me over the last couple months. Great cleaning and whitening modes, charger & case, and premium feeling build. Makes brushing a joy and Leaves you feeling like you just went to the dentist. Great product. The app isn’t perfect, but functional and not material to my overall experience. Love this brush!!

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

    Rated 5 out of 5 stars

    As good as a dental cleaning

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

    Best toothbrush I've ever owned. The charger is the actual glass, comes with different heads so the base can be shared. The changing heads are even have different color bands so you don't mix them up. When I'm finished brushing my teeth it feels like I just left the dentist from a deep cleaning.

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

    Rated 5 out of 5 stars

    Dentist quality results!

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

    I was on the fence about getting one of these for quite some time but finally decided to go for it. The app that can be used with this brush is great and I feel has helped me do a much better job brushing, my teeth have never felt so clean it's just as good as when my dentist does my cleanings!

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

    Awesome 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.

    My family has been using Sonicare toothbrushes for years, and this model has been excellent so far. While I don’t really have any way of knowing exactly how well it cleans my teeth beyond looks and feelings, my regular check ups at the dentist have been problem free. Overall it’s an easy to use system, and great for anyone looking for healthier teeth.

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

    Rated 5 out of 5 stars

    Perfect tooth brush.

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

    Thorough cleaning. Easy to change and replace brushes.

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

    Rated 5 out of 5 stars

    Simply Outstanding!

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

    Best electric toothbrush on the market--bar none. My teeth feel like I just received a dentist's cleaning and polishing after every brushing. Our family has owned several of these incredible toothbrushes from Philips, there is no substitute for the DiamondClean by Sonicare.

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

    Rated 4 out of 5 stars

    Best electric toothbrush

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

    Great electric toothbrush with fast wireless charging, super long lasting battery life, and great cleaning power. One star off due to its high price.

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

    Rated 5 out of 5 stars

    Sonicare only

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

    The best toothbrush out there. My first toothbrush lasted 4 years and it was just time to get a new one.

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

    Great 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 toothbrush. Automatically turns off after 2 minutes so I know when to stop brushing. Very easy to use and clean. Love the app that tells me what areas of my mouth I need to brush more. Everyone should get this toothbrush.

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

    Consistent and versatile brush.

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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 power and settings for different cleanings this brush offers. Will see how durable it is. This is my 2nd unit. The first brush lasted me 4 years until the brush tip broke off. Im hoping that is a one off issue.

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

    Rated 5 out of 5 stars

    Great

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

    Honestly I don’t think it was crazy to spend this amount of money on an item that I use consistently twice a day for the rest of my life. It cleans well and I love the features it has. Also like that it shows how well you cleaned your teeth. Honestly enjoy brushing my teeth now. Great product.

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

    Rated 4 out of 5 stars

    Nice product with a head scratch

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

    Phillips makes excellent tooth brushes and this is no exception. It is easy to get caught up with the different types of brushes. What brush to buy is always a question. The older brushes gave a notification when a minute transpired. Each quadrant was a minute. It appears they broke this out into eighths. This is too complicated. I still try to brush based on four areas. It sometimes appear as if it stops before I am done. This should be easy. Why did Phillips turn brushing into a convoluted chore?

    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 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, Toothbrush

    Rated 5 out of 5 stars

    Love

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

    My 3rd Sonicare and I love it. Love the different brush heads & app!!

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

    Rated 5 out of 5 stars

    Super Cool brush

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

    Clean teeth well. Cool App. Bought as a gift. It slays!

    I would recommend this to a friend