Philips Sonicare DiamondClean Smart 9300 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 4 Brushing Modes and 3 Intensity Levels, Black, Model HX9903/15
Original price was: $229.99.$199.96Current price is: $199.96.
Price: $229.99 - $199.96
(as of Apr 30, 2025 11:44:22 UTC – Details)
Philips Sonicare DiamondClean Smart 9300 electric toothbrush provides complete and efficient oral care, removing up to 20x more plaque¹, providing up to 15x healthier gums¹ and removing up to 100% more stains than a manual toothbrush. High-performance brush heads let you focus on all areas of your oral health, while our Smart Sensor technology gives you personalized feedback and coaching.
There are 4 brushing modes: Clean mode for daily cleaning, White+ for stain removal, Gum Health for gentle but effective cleaning of the gums and Deep Clean+ for a refreshing, thorough clean. There are also 3 intensity levels to choose from.
The built-in Philips Sonicare light ring pressure sensor lets you know if you’re pressing too hard. Advanced Sonic Technology provides gentle yet effective cleaning, pulsing fluid between teeth and along the gumline with a cleaning power of 62,000 bristle movements per minute.
By connecting to the Philips Sonicare app, you will be able to receive personalized brushing guidance to maintain and improve your brushing habits. The app lets you know when you’ve achieved a thorough clean and coaches you to be a better, more mindful brusher. The innovative BrushSync™ technology will let you know when it’s time to change your brush head. Improve your brushing technique with QuadPacer and reach your recommended brushing time of 2 minutes with SmarTimer.
Philips Sonicare DiamondClean Smart 9300 works perfectly as a travel toothbrush thanks to the travel case. You can also top up the power at home with the iconic charging glass. With regular use, the battery will last up to two weeks on a single charge (based on two periods of two-minute brushings per day on standard mode).
¹ vs. a manual toothbrush
² vs. a manual toothbrush. In-vitro study, actual results may vary
³ based on a study of over 2,600 dental professionals (dentists and hygienists) conducted in the United States, Canada, Japan, China, Korea, Thailand, Germany, the United Kingdom, Switzerland, France, Belgium, Austria, Italy, Spain, Sweden in 2022-2023
Product Dimensions : 4.37 x 6.85 x 9.92 inches; 2.31 Pounds
Item model number : HX9903/15
Batteries : 1 Lithium Ion batteries required. (included)
Date First Available : October 30, 2023
Manufacturer : Philips Sonicare
ASIN : B0CM426N2Y
Country of Origin : China
Advanced sonic toothbrush for improved oral health: achieve up to 20x more plaque removal¹, up to 15x healthier gums¹, and remove up to 100% more stains than a manual toothbrush
Personalize your brushing with this innovative electric toothbrush: choose from 4 brushing modes and 3 intensity levels to meet your oral healthcare goals
Real-time feedback: the light ring on the end of your handle will flash if you use too much pressure, reminding you to ease off the pressure and protect your teeth and gums
Personalized guidance: connect your toothbrush to the Philips Sonicare app and receive personalized brushing guidance to maintain and improve your brushing habits
#1 dental professional recommended sonic toothbrush brand worldwide³: benefit from Philips expertise to keep your teeth and gums in the best condition
The set includes: 1x DiamondClean Smart 9300 sonic electric toothbrush, 1x A3 Premium All-in-One brush head, 1x C3 Premium Plaque Control brush head, 1x charging glass and stand, 1x travel case
Customers say
Customers find the toothbrush leaves teeth feeling professionally cleaned and consider it the best electric toothbrush, with positive feedback about its long-lasting battery and helpful app features. However, the functionality and build quality receive mixed reviews, with some saying it works wonderfully while others report it stops working, and some units breaking. Moreover, the value for money is debated, with some finding it well worth the cost while others consider the replacement heads expensive. Additionally, the charging capability is problematic, as the travel case doesn’t include a charger.
AI-generated from the text of customer reviews
13 reviews for Philips Sonicare DiamondClean Smart 9300 Electric Toothbrush, Sonic Toothbrush with App, Pressure Sensor, Brush Head Detection, 4 Brushing Modes and 3 Intensity Levels, Black, Model HX9903/15
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Original price was: $229.99.$199.96Current price is: $199.96.
Brenda Pelletier –
Great toothbrush for managing oral health
This is my first Phillips toothbrush, and Iâm really enjoying it. While it is quite pricey, the payout is in minimizing issues at the dentistâs chair. I really appreciate that the app helps manage time spent in each area of the mouth, pressure, and scrubbing. It also enables you to flag problem areas requiring additional attention, reminding you to take extra care there. After reading some of the comments regarding concerns with charging via a cup, I was also concerned regarding how this may look. That said, I was surprised to see that there is an alternative option for a separate charging stand which is smaller in size and enables the toothbrush to stand upright. I prefer this option, and think it looks very clean and organized. I will second that the travel case does not charge the toothbrush itself. However, I consider this an extra luxury (an electric of toothbrush of this size is NOT one I would have ever considered âtravel sizeâ in the first place – a bit of clunkiness should be expected). I would be just as satisfied to pack the charger separately or temporarily opt for a non-electric toothbrush for lengthy travel. All in all, Iâm very satisfied with the quality of this toothbrush.
bernard salzman –
hilips Sonicare DiamondClean Smart 9300 Electric Toothbrush: Outstanding Oral Care
The Philips Sonicare DiamondClean Smart 9300 is a game-changer for oral hygiene. Its powerful sonic technology leaves teeth feeling professionally cleaned, while the smart sensors and app provide real-time feedback to improve brushing technique. The four customizable modes cater to every need, and the sleek design with a long-lasting battery adds to its premium appeal.Though an investment, itâs worth every penny for the visible improvements in teeth whiteness and gum health. If youâre serious about oral care, this toothbrush is a must-have. Highly recommended!
Edward Gonzalez –
Perfect toothbrush
I love this toothbrush it has sensitivity options
Deanna Cason –
Best Toothbrush
I have been a sonicare user for almost 10 years. The quality of the product is amazing and if there is ever an issue with the product, their customer service is outstanding. So I am not a twice a day, or even regularly floss and my dentist is always amazed at how little to no build up I have on my teeth and never have any dental issues. The different cleaning modes is a great option and having the ability to change the vibration intensity. Yes, the price may seem a bit high, but to have healthy teeth and gums and never need expensive dental work, I would say it is worth the cost.
CA –
Not a quality product.
Had an older version for ten years. Bought this updated version in June for my birthday in July. It has stopped working. Extremely disappointed with this new version. Was having difficulty holding a charge for about a month. Now will not charge at all. Waste of money.
Betty Stiegler –
The best
This really is the pinnacle of oral care. Itâs a dang good toothbrush.
Larry –
Big Sonicare Fan
This is purchase replace a previous Sonicare that finally died after several years. Everything you like about Sonicare is present in this toothbrush.Everything you’d expect this toothbrush to do it does. The build quality feels great and it supports multiple functions based on the auto-sensing of the brush head type. We brushing with the app is a bit gimmicky but I think it would be good for those who aren’t as conscientious about dental care.The one thing that did bother me is that this does not have the little hole in the bottom for inductive charging like all the rest of the line does. This has rendered my UV sanitizer worthless as it cannot charge this toothbrush. I’m not a big fan of the glass cup charging method. I found placing the toothbrush in the inductive charger is much easier. It also looks more organized rather than a toothbrush canted in a glass.
Michael Morris –
Well worth the money & your dentist will notice the difference as well!
This is a great product! I never knew how much cleaner my teeth could be when compared to brushing with a regular toothbrush or even one of the Oral B vibrating toothbrushes. It’s Well worth the money & your dentist will notice the difference as well!
Daria Stim –
good
MisaMisa846 –
9/10Itâs pretty, user friendly, cleans very well and feels like it polishes teeth. Itâs worth the moneyThe travel case didnât have a charging feature though.
Candace –
I switched to this toothbrush from the well know competitor. The Philips is superior in the overall ease of use. I also feel my teeth are cleaner. Love the cup charger that is an actual glass cup over top of the charger! Being able to quickly dump the toothbrush into the cup to charge without having to align is very convenient. Any drips or residue falls into the cup and it’s a breeze to rinse/clean. The heads are a nice size and softness. I’m very happy. I bought another one for a family member!
D M –
Great brush!
Craig Heron –
Gone are the days when a toothbrush was just a toothbrush.This is my fourth electric toothbrush and by far the most automated Iâve owned.At first glance the brushing guidance via Bluetooth seems rather superfluous, but I have quickly learned that it is valuable. Besides tracking how I brush, the instant feedback is making me more accountable for the job I do twice a day.The brushing system is expensive, but well worth it if you want your teeth to last a lifetime.