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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 3 Showing 41-60 of 1,317 reviews
  • 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 spent a lot of time researching the different Sonicare toothbrushes, and decided to go with the DiamonClean. Although this is the only Sonicare brush that I have used, I have been very happy with it so far. The design is very clean, and I love the dark color. As for performance, it does a great job cleaning your teeth and the brush presets work very well.

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

    Rated 5 out of 5 stars

    Amazing

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

    Omfg i love this toothbrush it cleans so well and the app is so good and the fact that it times you and shows you where your brushing is so good

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

    Rated 5 out of 5 stars

    Excellent Toothbrush

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

    The brushes are great! It comes with three different ones as for your need. The brush handle itself it's magnificent easy to clean and to recharge. It comes with a travel case that it's brilliant when you travel around, even if it's a road trip. The app to monitor your brushing its tricky but great. For me it's an excellent product. Highly Recommend.

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

    Rated 5 out of 5 stars

    Worth the Money

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

    It holds a great charge and has a lot of power. I prefer this brush head over the circle ones. I feel like i am getting a cleaning at the dentist. Fantastic toothbrush and very nice traveling case as well.

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

    Rated 4 out of 5 stars

    Toothbrush amazing, app not so much

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

    The toothbrush makes my teeth very clean, be sure to brush the right way, don't press too hard or move too fast. The app left a lot to be desired. It is a hassle to open the app every time you brush to see how you did. I wish it would send me notifications and maybe a score on how well I brushed so I could check the app then. I think it's not very helpful tbh and dictates the order you brush your teeth in which felt uncomfortable to me. At this time for this device, I would advise getting the non Bluetooth version. Although I think the app helped me learn how I was brushing wrong and what was the right way. I think that greatly helped my hygiene routine.

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

    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.

    Pros: • The interface with the app helps out a lot • The first time you use this toothbrush your teeth will actually feel clean • Just an overall great product from Phillips Cons: • There really isn’t a con with this product, the only thing I could say is that it only brings 3 toothbrush tips, but that’s not a problem at all

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

    AMAZING

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

    First, I absolutely loved my old sonicare toothbrush, but it was well over five years old, and stopped keeping a charge so this was my upgrade. My dental hygienist always gushes about how easy it is to clean my teeth every six months and said she loves it when her patients use sonicare toothbrushes. I asked about other new models of electric toothbrushes, and she recommended I stick with sonicare. As far as this model specifically, the difference from my old one is remarkable. Really feels like it’s getting my teeth cleaner. I love that it lights up and vibrates to signal when I brush too hard, because I have gum recession from brushing too hard in the past. Lastly, the new design with the glass cup or base for charging was worth the upgrade alone! It’s so much easier to keep clean than the older model with the hole in the handle to keep it on the base. I will say that I found the app to be pretty silly and I deleted it after the first time I tried using it, but overall I friggin’ love this toothbrush.

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

    Rated 5 out of 5 stars

    Love it!

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

    Charge lasts roughly three weeks. The app lets you know if you're missing any spots while brushing, if you're brushing too hard or moving too fast while brushing. Easy to remove the brush head and just as easy to charge with the included charger. Highly recommend.

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

    Rated 5 out of 5 stars

    Good-quality electric toothbrush

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

    Wireless charging is useful, battery lasts a long time. Simple to use, and the timing feature makes sense. It automatically begins counting down and signals you when to move to the next area.

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

    Rated 5 out of 5 stars

    Worth the purchase!

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

    My dentist recommended me to get a electric toothbrush... well after I done my research I came across the Phillips 9300 and I’m really pleased. It’s easy to use and you can track the information on the app with your phone. Totally worth it!

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

    Love the Sonicare! Great travel case, and battery life is long. Cleans well, a lot of diff options, but I don't usually use the app. I like the sensor for beeping when you're pressing down too hard on your teeth as well. 100% recommend!

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

    Rated 5 out of 5 stars

    Very happy with switch from sonicare

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

    Happy with my switch. Good battery and an easy app to use. Like the three settings as well

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

    Rated 4 out of 5 stars

    Love the brush, no charging travel case

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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 the tooth brush, it is a replacement to previous sonicare, but disappointed that the travel case doesnt recharge the toothbrush (like some other series do) I will keep but hoping to find a charging cade compatible with this one

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

    Rated 5 out of 5 stars

    Best 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’ve owned several and this is the best yet. I have a coach in the app and the toothbrush automatically uploads my brushing behaviors (ie. Too rigorous, too hard, areas I missed, etc). Expensive but it’s a “smart” toothbrush.

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

    Rated 5 out of 5 stars

    Life changer!

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

    My teeth have never been better! Love the app integration, easy to use, totally worth it! Wireless recharging works great. I am terrible at tooth care, but this just upped my game!

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

    Rated 4 out of 5 stars

    Returned it, but still really great experience

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

    I honestly couldn't justify spending $300+ dollars on a toothbrush, so I returned it. If it was a bit more affordable, I would spend the money in a heart beat. The experience was wonderful for the most part. Only gripe I have is it is kind of loud. However, that is because it cleans your teeth really well; so of course it's going to be a bit loud. I had also made the mistake of opening my mouth to see my teeth for a moment, and toothpaste went flying everywhere from the sheer speed of the brush. Just make sure your mouth is closed! (: There is also an app that allows you to connect your brush to your phone via Bluetooth. For the non-tech folks out there; you can ignore that part. You don't have to connect it in order for it to work as intended!

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

    Rated 5 out of 5 stars

    Wonderful Hi-Tech Toothbrush

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

    I gave this as a present to my son, then from all his good review, I bought another one for my husband. They walk around using it several times a day and say it is the best toothbrush all around. Nice to have it recharge in the glass as well. (Still a little pricey).

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

    Rated 5 out of 5 stars

    Awesome Sonic

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

    The best electronic toothbrush ever! My 2nd one purchased, comes with app to see your progress on areas that need attention how you can get the most out of your brush. Changes your habits for the better.

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

    Rated 5 out of 5 stars

    Dentist recommended

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

    Dentist recommended and my gums have been doing much better since. It's easy to use my only issue is the brush heads are a bit pricey but that's still cheaper than gum disease.

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

    Rated 5 out of 5 stars

    Fantastic

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

    Teeth never felt so clean. Kind of expensive but so worth it. The app is amazing at reminding you to clean your teeth and tells you more stats. I had no idea that this was out there because I had a basic electrical brush that was a cheapo.

    I would recommend this to a friend
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