Philips Sonicare DiamondClean Smart Electric Toothbrush - Lunar Blue
$279.99 reg $339.96
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4.4 out of 5 stars with 841 ratings
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4.4 out of 5 stars with 45 reviews
ease of use: 5 out of 5
quality: 3 out of 5
value: 2.5 out of 5
100% would recommend
2 recommendations
5 out of 5 stars
Thumbs up graphic, would recommend
10 November, 2025Verified purchase
Sonicare Toothbrush 20X
This is my forth Sonicare electric toothbrush. I like the fact that this toothbrush cleans 20x better than manual brushing. My last Sonicare toothbrush cleaned 7x better than manual brushing. I like the fact that there are 2 separate push buttons; one for selecting type of brushing & another for on off mode. My toothbrush came with a number of extra toothbrush’s. Presently I’m using the one that is probably the most expensive. Please see photo I took. I really like this brush head! I rinse the handle of my toothbrush thoroughly after every brushing. I haven’t set up my toothbrush with my phone app yet. I hope this toothbrush last a minimum of 5 years. That’s how long my last Sonicare toothbrush lasted. I do recommend using a Sonicare toothbrush; your teeth are whiter, fewer cavities, less tarter buildup, overall better hygiene cleaning of your teeth. My hygienist always says my teeth look like “pearls”. I’m 78 years old and I can’t live without my Sonicare toothbrush!
5 out of 5 stars
10 November, 2025
originally posted on philips.com
Amazing Toothbrush and Software
I have had this toothbrush since 3/21/2021 and is still going strong. This is the most awesome toothbrush I have ever had. It is AMAZING!
1 out of 5 stars
28 September, 2025
originally posted on philips.com
Horrible quality control. Tho Customer sat superb
I have been using this same model for more than a decade, but I have to purchase a NEW ONE roughly every year as the same issue recurs -- the motor gets louder as the metal bar in the main body gets looser and eventually the brush no longer works. This last one only worked for 3 months before same thing occurred.
1 reply from Philips Consumer Care team - 4 months ago
Hi Frustated in MD, Thank you for bringing this to our attention. We truly understand why you feel this way and we're sorry for any inconvenience this has caused you. We valued your feedback as purely as diamond because it is a source of growth! We'd like to look into your concern immediately and ensure a prompt resolution to your issue. Please consider reaching out to us via one of our social media channels. We are available 24/7 on Facebook, Instagram @Philips or X (Twitter) @Philips. You can also reach out to us via the contact page:https://www.usa.philips.com/c-w/support-home/support-contact-page#n62Contact=PERSONAL_CARE_GR Hope to speak to you soon! Kind regards, Philips Consumer Care
5 out of 5 stars
26 July, 2025
originally posted on philips.com
Automatic timing of cleaning
[This review was collected as part of a promotion.] First class toothbrush, Dentist recommended this toothbrush
1 out of 5 stars
21 July, 2025
originally posted on philips.com
Do not buy - faulty battery
Just laid my second one of these toothbrushes to rest after a little over a year of working. It's a nice toothbrush when it's working, but one day it just stops functioning for no reason. This is the same thing that's now happened to me twice. The first time it happened Sonicare did replace the handle and I got another year of use, but now this one has also died. There's clearly something wrong with this product and the company has no other solution than a 30% off discount with free brush head for your money and time. DO NOT BUY!
1 reply from Philips Consumer Care team - 6 months ago
Hi there, we’re sorry to hear about your experience, and thank you for bringing this to our attention. We'd like to look into your case immediately and ensure a prompt resolution for your issue. Please consider reaching out to us via one of our social media channels. We are available 24/7 on Facebook, Instagram and Twitter @Philips. Your questions and concerns are important to us, and we're here to help. Hope to speak to you soon! Best regards, Philips Consumer Care
2 out of 5 stars
Thumbs up graphic, would recommend
18 April, 2025
Does not last more than 1 to 2 years
We have been Sonicare toothbrush users in the household for a long time. I’m getting fed up them and no way I’ll invest that much money again. It will not last past 1-2 years (especially close to warranty expiration). Trust me this happened to us twice. My son even used one of these and yes electric brushes are better than regular ones. Both of our brushes stopped functioning and mine sometimes vibrates / turns on out of blue on its own. It is not worth investing into it. We might go to $50 one and that is a max we would spend on Sonicare.
1 out of 5 stars
30 March, 2025
originally posted on philips.com
Stopped working with in 2 months warranty team loo
[This review was collected as part of a promotion.] Stopped working with in 2 months warranty team looking for brush serial number which we trashed it already
1 reply from Philips Consumer Care team - 10 months ago
Hi. Thank you for bringing this to our attention. This is certainly not the experience we wanted you to have. If still possible, we would love to answer or look into any issues you may have encountered. Please feel free to contact us via social media. We're on [Facebook](https://www.facebook.com/Philips), [Instagram](https://www.instagram.com/Philips) and [X](https://twitter.com/PhilipsCare). Not on social media? No problem. You can also contact us through our [Support Page](https://www.philips.co.in/c-w/support-home/support-contact-page). Hope to talk to you soon! Best regards. Philips Consumer Care
5 out of 5 stars
16 February, 2025
originally posted on philips.com
A great replacement for any of the competitors!
[This review was collected as part of a promotion.] I was using a top-of-the-line competitor toothbrush from Oral-B, but the DiamondClean Smart 9700 HX9957 is so much better for my particular mouth. I like the DiamonClean brush head shape, as it allows me to get into corners that the competitor brush head does not!
5 out of 5 stars
17 January, 2025
originally posted on influenster.com

Best Clean from an Electric Toothbrush
[This review was collected as part of a promotion.] So far I have absolutely loved this toothbrush. It gives me an amazing clean and makes my teeth feel so refreshed. The app makes it easy to ensure I get the best clean and helps me monitor my usage for the best results. The sleek, quiet design makes for a convenient way to have great oral health without a hassle.
3 out of 5 stars
29 November, 2024
originally posted on influenster.com

Pretty nice!
[This review was collected as part of a promotion.] This is a decent toothbrush & nice, but I don’t think it cleans my teeth as well as my regular manual toothbrush. The battery does last a very long time though, it’s quiet, and the app works amazing in correlation with your movements. I do love the technology that they put into it, though, you can tell a lot of thought and attention to detail is there.
5 out of 5 stars
29 November, 2024
originally posted on influenster.com

Redefining
[This review was collected as part of a promotion.] I was ecstatic to receive this device and I am so happy to share that it has gone beyond meeting all of my expectations. The DiamondClean is more than a toothbrush, with a user friendly app it provides an experience that encourages improvement and wellness by providing feedback on your brushing. There are 5 different modes and 3 intensities to choose from, which makes this toothbrush incredibly versatile in meeting your needs and preferences. This package includes 6 brush heads, 2 tongue brushes, a usb charging travel case, a charging glass and stand. You can feel the quality when handling all items, especially the toothbrush itself. The battery life so far has been excellent, I charged it for a full 24 hours after taking it out of the box almost 3 weeks ago and that charge is still going strong. I am so happy with my experience.
5 out of 5 stars
29 November, 2024
originally posted on influenster.com

Changed the game!
[This review was collected as part of a promotion.] I never thought I would be an electric toothbrush girlie but here I am! The Philips Sonicare Diamond Clean Smart brush has been a game changer for me. It comes with multiple brush heads to fit your specific oral care needs. Come with a glass cup, chargers, and actual directions that are helpful. I highly recommend downloaded the app for the brush as well, it helped explain everything this brush really can do for your oral health!
5 out of 5 stars
25 November, 2024
originally posted on influenster.com

Best Smart Toothbrush on the Market
[This review was collected as part of a promotion.] This toothbrush is not only extremely aesthetically pleasing but works wonderfully! I love the multiple brush heads, cleaning options, and tongue cleaner. The toothbrush senses the pressure and will light up to help you adjust your brushing. It also has an app for your phone to help guide you as you clean your teeth so you don’t miss anything. This Smart brush makes it so easy to ensure you teeth are clean!
5 out of 5 stars
24 November, 2024
originally posted on influenster.com

This will teach you to brush properly
[This review was collected as part of a promotion.] This tooth brush leaves my teeth feeling smooth and sparkly every time. The app is very easy to use and has shown me I was probably being too rough on my teeth. The battery lasts longer than my last electric toothbrush so worrying it will die in the middle of brushing hasn’t been a problem. I love the different heads as well as the tongue brush.
5 out of 5 stars
24 November, 2024
originally posted on influenster.com

Wow
[This review was collected as part of a promotion.] This Philips Diamond Clean Smart 9700 Sonic Electric Toothbrush with app is crazy cool and accurate. I love all the accessories it came with to make it easier.
5 out of 5 stars
24 November, 2024
originally posted on influenster.com

Good electric brush, easy clean and quick charge
[This review was collected as part of a promotion.] I am definitely not good at how long to brush. This brush takes the guessing out along with the app to tell you how long to brush each area in your mouth. No need to move the brush either because if you do it tells you to stop moving so much.
5 out of 5 stars
23 November, 2024
originally posted on influenster.com

Best Toothbrush Ever!!!
[This review was collected as part of a promotion.] This toothbrush is amazing! I took it with me for a one week work trip and didn't have to charge it at all! The app helps me stay on track with my brushing, and it does a really great job in cleaning my teeth. Using this brush is like getting a professional clean every time!
5 out of 5 stars
22 November, 2024
originally posted on influenster.com

Great toothbrush all around
[This review was collected as part of a promotion.] This toothbrush is amazing. First appearance out of the box is very impressive. It looks like the highest end electric toothbrush I’ve ever seen and puts out old ones to shame. It’s so fancy and the colors make it look expensive. And it works great. Comes with many extra toothbrush heads so you won’t need to buy more for a while and is effective and easy to use. Soft enough bristles to feel good while cleaning. A really upscale product.
5 out of 5 stars
14 November, 2024
originally posted on influenster.com

Squeaky clean, love the app, beautiful packaging
[This review was collected as part of a promotion.] I love this toothbrush! I used to have an older version years ago and somehow they made it even better! I love how sleek the white looks with rose gold trim. I love that I can use an app to show me where I need to re-brush and if I’m brushing too hard. I love that it comes with multiple toothbrush heads and even a tongue scraper. It cleans my teeth so well and I find they feel clean through most of the day. I look forward to brushing everyday! I also love that it came with the travel case and charging cable attached in a compartment on the bottom! So much easier so I don’t have to look for my charging cable every time I travel! The only thing I don’t like is that I need to open up the app on my phone before starting to brush my teeth if I want to see my brushing recommendations. It’s a hassle and I wish it would just track as I go so I don’t have to remember to open the app every time. It’s not a huge deal at the end of the day. Almost forgot to mention the box was partially open when it came in the mail. Thankfully everything was still inside and it started up fine.
1 out of 5 stars
13 November, 2024
originally posted on philips.com
it broke in 2 years.
the head became loose and was told it is the motor problem. cannot fix it.
1 reply from Philips Consumer Care team - 1 year ago
Hi, Thank you for sharing this feedback with us,we are so sorry to hear about this.We would love to help find a way to assist and resolve this matter succesfully. Please feel free to contact us via social media. We're on [Facebook](https://www.facebook.com/Philips), [Instagram](https://www.instagram.com/Philips), and [X](https://twitter.com/PhilipsCare). Not on social media? No problem. You can also contact us through our [Support Page](https://www.philips.co.in/c-w/support-home/support-contact-page). Hope to talk to you soon! Best regards. Philips Consumer Care