Philips Sonicare

Philips Sonicare DiamondClean Smart 9300 Electric Toothbrush Sonic Toothbrush with App Pressure Sensor Brush Head Detection 4 Brushing

255+ bought in the past month

$199.96$229.99

About this item

  • 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
$199.96
Was $229.99Save $30.03

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Product details

BrandPhilips Sonicare
Age Range (Description)Adult
Special FeaturePressure Sensor,Brushing Timer,Rechargeable,Lightweight,Ergonomic
Power SourceBattery Powered
Item Firmness DescriptionSoft

Technical specifications

product_dimensions4.37 x 6.85 x 9.92 inches; 2.31 Pounds
item_model_numberHX9903/15
batteries1 Lithium Ion batteries required. (included)
date_first_availableOctober 30, 2023
manufacturerPhilips Sonicare
best_sellers_rank#18,406 in Health & Household ( See Top 100 in Health & Household ) #42 in Sonic Toothbrushes

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Customer reviews

4.4940 ratings

Customers say

Customers find this electric toothbrush to be the best Sonicare model, appreciating its cleaning power that leaves teeth feeling clean and its customization options with four settings.

★★★★★

The best there is on the market!

JstanleyNovember 27, 2025

Highly recommend! The quality and comfort this toothbrush provides is beyond my expectations! It’s been easy to use and provides a better clean than any other brush (electric or standard) I’ve ever tried. It is easy to travel with considering it has a travel case that comes with and the battery lasts a week or more on a single full charge. Definitely worth every penny! Read more

★★★★★

Quality was good

Simon KwonDecember 25, 2025

The delivery was quick and the product is efficient. Read more

★★★★★

Dentist clean.

Dennis PeaceDecember 21, 2025

Was using the diamondclean classic, this version is totally different. The high intensity gets your teeth clean feeling like after the dentist. It's pricey but we'll worth it. Read more

Review image 1
★★★★★

Great Product!

Linda OlsonDecember 25, 2025

This is my third Sonicare toothbrush, and I'm very happy with it! My dentists have always recommended Sonicare over the other brands, and I wanted a good model that didn't have all the bells and whistles (due to price). Yes, there are cheaper brands, but my dentists have all said they think Sonicare does the best job. Read more

★☆☆☆☆

Avoid the 9300 Series at all costs!

KristiNovember 23, 2025

This is my 2nd DiamondClean Toothbrush. The first one lasted almost 10 years and worked like a dream. This one has a problem with the design. I bought it in February and within a couple of months, it stopped vibrating and instead, just spasmed. I contacted Sonicare and they sent a replacement. Within a month of getting that replacement, it started the same behavior where it would not function correctly. It is now a countertop decoration. I love DiamondClean, but not the 9300 Series. It has a design flaw that my previous toothbrush didn't. Unfortunately, it was a waste of $200 and I am now using an Oral B. I would have LOVED to have stayed with DiamondClean as they leave you feeling like you just left the dentist every single morning. But this Series has a design flaw. DO NOT PURCHASE THIS PARTICULAR SERIES! Read more

★★★★☆

Great performance, questionable durability

L. KleinDecember 23, 2025

I love this toothbrush, but it keeps breaking every 2-3 years. I keep ordering new ones because I’m addicted to the fresh-from-the-dentist feeling of clean. I feel bad because each time I throw away a bunch of accessories I don’t need because they last a lot longer than the toothbrush itself. Read more

★★★★★

Best Investment EVER

akDecember 18, 2025

If you don't use a Sonic Care toothbrush, you are missing out on life. This is the best invention ever. I look forward to brushing my teeth and often brush several times a day (with my favorite toothpaste - Arm & Hammer). I never have plaque or cavities. It's the BEST! Read more

★★★★★

Sonicare Diamond Clean Smart Electric toothbrush.

Terry HawkinsDecember 31, 2025

just bought my new Sonocare Diamond after my last one died. I had my last one for five years. Love this toothbrush. Read more

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