Early Black Friday DealsNew Doorbusters every Friday.Shop now

Main Content

Customer Ratings & Reviews

Your price for this item is $131.99
Clearance
The comparable value price is $219.99

Customer reviews

Rating 4.7 out of 5 stars with 1317 reviews

Rating Filter

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

Pros mentioned filter

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 4 Showing 61-80 of 1,317 reviews
  • Pros mentioned:
    App
    Cons mentioned:
    Price

    Rated 5 out of 5 stars

    Best toothbrush

    |
    |
    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, Cleaning

    Rated 5 out of 5 stars

    Awesome Sonic

    |
    |
    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

    |
    |
    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:
    Toothbrush
    Cons mentioned:
    Price

    Rated 5 out of 5 stars

    Wonderful Hi-Tech Toothbrush

    |
    |
    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:
    Battery life

    Rated 5 out of 5 stars

    Loving the sonicare improved model

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

    This is my second one as my battery died on the last one. This upgraded model is a massive improvement. The charge stays longer. It feels like it’s more powerful so you get a much better clean. Love it! I bought the extended warranty, just in case the battery dies.

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

    Rated 5 out of 5 stars

    Fantastic

    |
    |
    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
  • Pros mentioned:
    Cleaning

    Rated 5 out of 5 stars

    Solid electric toothbrush

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

    I've had plenty of Sonicare's over the years, but stopped because of the mold that would grow in the cavity of the handle. Grossed me out! I did my research, again, & the Diamond Clean is the best option. There is one more level you can go with these toothbrushes, ie: bluetooth & $100 more. I know buying a $200 toothbrush is crazy & expendable income, but I saved up & bought it. Well worth the price since it cleans the bejeezus out of your teeth; there's no room for mold to grow. I sanitize the brush daily. I luv my Sonicare!

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

    Rated 5 out of 5 stars

    You can feel the clean

    |
    |
    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I have used many electric toothbrushes on the market but this one has been the winner so far. You can just feel how clean your teeth are after using it. My dentist also noted my gum health improved significantly after I started using this toothbrush.

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

    Just get it

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

    I'm not going to lie, paying $200 for a toothbrush is insane. However, I have been buying these Phillips toothbrushes for 10+ years now. It all started with me freaking out for not going to the dentist for years so they said I needed a deep cleaning. So after that and what I had to pay, I thought about time to invest. Ever since then, I haven't had any problems and I love this thing. I've gotten many family members to invest as well. They do break down over time and I've only owned 3 toothbrushes so they do last. I am excited about this new model to help me floss, rinse, and scrape my tongue. I don't care for watching the app as I brush but it makes sense for I thought, how does this thing no what I'm doing...I do question it telling me I didn't brush well and to repeat it again, however its minor and something that doesn't annoy me for again, its maybe 3 minutes of me brushing.

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

    Rated 5 out of 5 stars

    Good cleaning and associated app is beneficial

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

    I bought this toothbrush to replace my 5 year old Sonicare. This is the latest model of the Sonicare top of the line electric toothbrush. They also introduced new brush heads to help in better cleaning. This brush also has a Bluetooth connected app to help you with your brushing. Be ready for an enhanced brushing experience with this. With the brush and new design brush heads, I am seeing very good results in reducing buildup on my teeth. The app takes a little getting used to but does help make sure I brush effectively.

    I would recommend this to a friend
  • Cons mentioned:
    Charging, Travel case

    Rated 3 out of 5 stars

    Brush great. Charging cup dumb, case no charge

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

    So, this is my third brush, so I obviously like the product. It keeps my gums healthy, with 2 to 3 mm margins all around (your hygienist will know). The second button to select function is a good change, but the drop-in-the-cup-to-charge feature is just flat out dumb and looks stupid on my counter. Did anyone in marketing have any good data on this?--because I am still verklempt over this. I kept my old charge stand, much neater. Then, the travel case doesn't have charge capability built in any more (travel being the reason I have more than one), so I have to keep my old case. So, I kind of have better functionality in my PRIOR version, but if you've never had one before, then it's still worth the buy, although more value based choices would still be sufficient. Overall, I still love Philips and this brush, but I think some people in marketing need to be transferred elsewhere.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Cleaning, Toothbrush

    Rated 5 out of 5 stars

    Amazing results!

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

    Best toothbrush out there. Just replaced my husband’s after 5 years. Great investment for keeping your teeth really clean.

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

    The best upgrade.

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

    I owned a $50 Sonicare before purchasing this one. This just has more power and I love the look an design as well, including the charging glass. I’m a smoker and I also drink a lot of coffee and tea so it’s important for me to be able to remove those stains from my teeth, and this toothbrush does just that. I’m happy with my purchase.

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

    Rated 5 out of 5 stars

    Money well spent

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

    I was a bit apprehensive secondary to the price but this toothbrush has been amazing. I’ve been using it for approximately three weeks now and my teeth feel great. Features I love: the charging base is aesthetically pleasing, multiple cleaning modes, well thought out travel case, and several toothbrush heads included. I honestly haven’t found anything I dislike about it. I try to use the associated app when brushing but sometimes skip that feature. Cool idea though if you like data. I would recommend this toothbrush.

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

    Rated 5 out of 5 stars

    Great toothbrush

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

    I had this same toothbrush for 5 years and liked it very much. I got the new one because I dropped the old one and broke it but actually I think it was near the end of its life. I like the features and it does a good job on my teeth.

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

    Rated 5 out of 5 stars

    Great Electric Toothbrush

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

    I bought this Sonicare toothbrush to replace my last one after it died. My previous Sonicare lasted five years and I am very happy with this improved model.

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

    Rated 3 out of 5 stars

    Phillips Sonicare Toothbrush

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

    I think my really old Sonicare worked better. The brush I have on is hard. Maybe the other two brushes that came with it are softer. I prefer not tho have it in a glass for charging but I knew that when I bought it. It is a nice looking tooth brush. It does clean well.

    No, I would not recommend this to a friend
  • Pros mentioned:
    Toothbrush

    Rated 5 out of 5 stars

    Great

    |
    |
    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This product is awesome!!! I had no issues with this item, it worked very well and I would buy it three times over.

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

    Rated 5 out of 5 stars

    Great!

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

    Was given as a gift. Love sonicare toothbrushes. Great quality, great cleaning, long battery life.

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

    Rated 5 out of 5 stars

    Surprisingly worth it

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

    I bought this reluctantly but I will admit that my reluctance was ill placed. This little monster is amazing. My teeth look like I had just visited the dentist for a cleaning. Multiple settings that all deliver on what Phillips promises. Buildup that I could not seem to get rid of via regular brushing was gone in 3 uses. The cost is high but so is the result.

    I would recommend this to a friend
Sponsored