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Philips Sonicare - DiamondClean Smart Electric, Rechargeable toothbrush with Charging Travel Case, and 8 Brush Heads - Lunar Blue

Model: HX9957/71
SKU: 6572073
Sold byBest Buy

Customers are saying

Customers are delighted by the DiamondClean Smart Electric toothbrush's cleaning performance and the inclusion of multiple brush heads. The charging travel case and wireless charging glass are also appreciated, along with the sleek design and long battery life. The app and pressure sensitivity features enhance the brushing experience, while the USB travel case adds convenience. The main drawback mentioned by customers is the high price of replacement brush heads.

Generated by AI based on customer reviews.
Features
  • Complete oral care with smart sensor technology for an exceptional clean

  • Removes up to 10x more plaque and improves gum health up to 7x in just 2 weeks (in gum health mode vs. a manual toothbrush)

  • Removes up to 100% more stains in just 3 days (in white+ mode vs. a manual toothbrush)

  • 4 different smart brush head types automatically pair with the appropriate brushing mode and smart sensors provide real time feedback

  • 5 modes: Clean, White+, Deep Clean+, Gum Health, TongueCare & 3 intensity levels

See all features
Specifications
  • Timer
    Yes
    Rechargeable
    Yes
    App Compatible
    No
    Number of Brush Heads Included
    8
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Reviews

Rating 4.9 out of 5 stars with 70 reviews

99% would recommend to a friend
Customers are sayingCustomers are delighted by the DiamondClean Smart Electric toothbrush's cleaning performance and the inclusion of multiple brush heads. The charging travel case and wireless charging glass are also appreciated, along with the sleek design and long battery life. The app and pressure sensitivity features enhance the brushing experience, while the USB travel case adds convenience. The main drawback mentioned by customers is the high price of replacement brush heads.
This summary was generated by AI based on customer reviews.
  • Brush Heads (16)
  • Cleaning Performance (15)
  • Travel Case (14)
  • Battery Life (8)
  • Design (8)
  • Price (8)

Customer Images

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.

  • Rated 5 out of 5 stars

    ★★★★★ Absolutely Worth Every Penny

    I’ve used a lot of electric toothbrushes over the years, but the Philips Sonicare DiamondClean Smart is in a league of its own. From the first use, my teeth felt like I had just left the dental hygienist. That incredibly smooth, polished feeling is something I’ve never been able to achieve with a manual toothbrush. As someone who travels frequently, it’s incredibly convenient to keep the toothbrush protected while also being able to charge it on the go. Having eight brush heads included is a huge value. It means I won’t have to worry about replacements for quite a while, and I like having different brush head options depending on whether I’m focusing on whitening, gum health, or deep cleaning. The brushing modes are easy to customize, and the pressure sensor has actually helped me realize I was brushing too hard. My gums have noticed the difference,they feel healthier and less irritated, while my teeth look brighter and cleaner. The battery life has also been excellent. Even with regular use, I don’t find myself constantly reaching for the charger. Yes, it’s an investment, but after using it, I genuinely understand why it’s considered one of the best electric toothbrushes available. If you’re looking to improve your oral hygiene or simply want that “just left the dentist” clean every day, I highly recommend it. It’s one of those purchases that you appreciate every single morning and night.

    Posted by Edgar

  • Rated 5 out of 5 stars

    The do-it-all toothbrush

    If you're looking for a toothbrush that does it all, look no further. This feature-packed, all-in-one toothbrush offers the ultimate oral hygiene experience. The quick change heads make it easy to switch between different brushing modes. There are multiple heads included for deep cleaning, whitening, tongue cleaning, and more. And if that wasn’t enough, each brush head has a microchip installed so the app can monitor everything from your brushing style, to areas you may have missed, to sending notifications of when the head should be replaced, and more. See my app screenshots. The helpful app tracks your brushing habits and provides personalized recommendations for improving your oral health. It actually coaches you to a better smile. Additionally, the toothbrush notifies you if you are brushing/scrubbing too hard. It utilizes vibrations to convey this message, a feature found in many electric toothbrushes. I have owned several electric toothbrushes through the years and the Philips Sonicare 9700 is easily the most feature packed winner of them all. There are several brushing modes, including a normal everyday cleaning mode, a deep clean mode for a thorough clean, and a whitening mode for a brighter smile, and even a tongue cleaning mode with a special head. There is a mode for every type of oral cleaning included with this package. Initially, the charging base seemed peculiar to me, with the toothbrush placed in a drinking glass on top of the charger. However, after using it, I've come to appreciate its design. Placing the toothbrush into the glass is effortless, and the device promptly recognizes it, initiating the charging process. Moreover, the glass is easily removable, doubles as a rinsing glass, and allows for convenient cleaning in the dishwasher every few days, as needed. So far, I haven’t needed to travel with this toothbrush, but when I do, I feel like this will be the perfect one for the job. Philips says that it can run up to two weeks on a single charge, but if that isn’t enough, they have also included a handy travel case that charges the handle via USB. This truly is the best all-in-one toothbrush package I have ever seen. To date, I haven't had the opportunity to take this toothbrush on any trips, but I believe it would be ideal for that purpose. According to Philips, the toothbrush can last up to two weeks on a single charge. And for extended travel, it comes with a convenient travel case that allows you to charge the handle via USB. In my opinion, this is the finest all-in-one toothbrush set I've ever come across. With its superior cleaning power, multiple heads/brushing modes, and helpful app, this toothbrush is the complete oral hygiene package. You'll never need another toothbrush again.

    Posted by MrShinyCadillackness

  • Rated 5 out of 5 stars

    Great Toothbrush!

    Ok, this is not only a very decent toothbrush but all of the added pieces that came with it was a major plus!

    Posted by jumper71

  • Rated 5 out of 5 stars

    Cleaner than ever

    I don’t think my mouth has ever felt this clean, even after a dental appointment. From coming with different styles of heads for whatever you are looking for or particular style you like to having different speeds and timing. To get the full advantage of this toothbrush, you want to have the Sonicare app installed and open when you are ready to brush. Then you get a timer and a diagram of a mouth and it monitors your motions. Such as brushing too fast, pushing too hard or not being in a particular section long enough. It is pretty good at knowing at least the inside/outside of the section you are brushing, but it is on you to follow the area as it can’t determine it that much. I certainly had been using my older Sonicare brush too fast compared to the speed of this one with the reminders to slow down. The only downside to using the app is having a good place to keep your phone, because having it on the counter means you have to look down and that can make for some messy brushing. The full collection is a bit overwhelming at first. It comes with 6 brush heads and a tongue brush. It has a charging base, a stand for the charging base, a glass that can also fit on the charging base and a travel case along with the main handle. The main handle feels a bit big to me personally, like it is a lot to handle while brushing your teeth. It also ends up being easy to bump the buttons when you are moving it around and suddenly you are in a different mode. But, it certainly isn’t your average electric toothbrush. Overall this toothbrush system will ensure you are brushing at your best and help get the clean you are looking for. You end up with a few pieces you might not use but from time to time, such as the hard travel case, unless you do travel a fair bit, and the extra heads. But, you get to try out the different head types to find your preference. Personally, I like the A3 All-in-one, but they only included one of those in the set.

    Posted by DavidJr

  • Rated 5 out of 5 stars

    Excellent Clean!

    This is my third or fourth electric toothbrush in the past 10 or so years, and by far the fanciest. I never thought I would be someone who had a bluetooth-capable toothbrush, but here we are! The pros: * comes with several different toothbrush heads with a variety of functions/features, including a tongue scraper * battery life is AMAZING (my apartment's bathroom is not conducive at all to charging the toothbrush, and even with regular use for over a week, I still did not have to charge it!) * comes with a glass cup that can double as a charger (see pictures) * thoroughly cleans my teeth (with exceptions - see below) * app supported, and gives you real time feedback on your brushing (coverage of your mouth, pressure, and motion) and a timer * sleek design with multiple cleaning options * tracks when you need to replace your toothbrush head * travel case can also charge your brush! Cons * the app drives me a little crazy, because of the way it lays out where you are brushing in your teeth, and gives you a front/back period of time for the back 4 areas, but not the front, which leads to not as thorough of a clean in the front (at least for me) * for the app to track your usage, your phone has to be on and the app running, which can be frustrating if you leave your phone in the other room, or it has died * price point is a little high, even with all the features it has

    Posted by erinb16

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Pros for Philips Sonicare - DiamondClean Smart Electric, Rechargeable toothbrush with Charging Travel Case, and 8 Brush Heads - Lunar Blue
Cleaning Performance, Travel Case, Battery Life, Brush Heads, DesignTravel Case, Battery Life, Cleaning, Overall Performance, AppCleaning Performance, Battery Life, Brush Head, Ease of Use, Pressure SensorThere were no pros for this product
Cons for Philips Sonicare - DiamondClean Smart Electric, Rechargeable toothbrush with Charging Travel Case, and 8 Brush Heads - Lunar Blue
PricePrice, Intensity, Charging, WarrantyTravel CaseThere were no cons for this product

Specs

Questions & Answers
  • Are thr glass chargers replaceable?

    Hello there! Yes, the glass chargers for the Philips Sonicare DiamondClean Smart Electric Toothbrush are replaceable. You can find compatible replacements online. Just ensure they match your model, HX9957/71.

    Answered by Philips
    Philips response
  • On Amazon.com, it says this comes with an App. Does this identical version at Best Buy come with an App too?

    Hello! The Philips Sonicare DiamondClean Smart HX9957/71 toothbrush is equipped with a feature that is compatible with the Sonicare app.

    Answered by Philips
    Philips response
  • Is there an alarm to tell you when to stop brushing?

    Yes

    Answered by Manscaped4
  • Does the app for this allow you to set some kind of brushing reminder/notification? I’m embarrassed to say I need to get back in the habit of brushing twice a day so I’m hoping the sonicare app for this has brushing reminders

    It does everything you could ever ask for I love this brush for so many reasons, especially the Bluetooth app and also the different brushhead and modes that it has and it holds battery charge the longest out of every toothbrush I have ever had and I’ve tried them all this is absolutely the best hands-down

    Answered by Twinpilot
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