Philips Sonicare DiamondClean Smart Review
Philips Sonicare DiamondClean 9300 Electric Toothbrush, 2 Brush Head, Black
$199.96 (price as of 2026-11-07)
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MySwak summarizes what owners report on Reddit. It is not dental advice. See your dentist for oral-health concerns.
Reddit score
3.2 Based on 13 Reddit owner comments · Top 67% of 6 tracked electric toothbrushes
| Owner sentiment | 3.7 | |
| Recommendations | 3.0 | |
| Spec score | Not rated | |
| Value | 2.4 |
How these are computed: methodology. Components without evidence show “Not rated” and their weight moves to the others.
Is the Philips Sonicare DiamondClean Smart worth it?
Based on 13 Reddit owner comments, the Philips Sonicare DiamondClean Smart scores 3.2 out of 5 (owner comments average 3.5 stars), and the theme owners raise most is durability (11 mentions).
Who it suits
- You care about durability (5 positive owner mentions)
- You care about cleaning (4 positive owner mentions)
- You care about battery (3 positive owner mentions)
Who should skip it
- Durability matters a lot to you (4 critical owner mentions)
What Reddit owners say
7 positive and 4 critical owner comments. Quotes link to the original Reddit comment.
At a glance: fit & evidence
| Decision point | Observed evidence |
|---|---|
| Owners appreciate | durability (5 positive owner mentions); cleaning (4 positive owner mentions); battery (3 positive owner mentions) |
| Consider carefully | durability (4 critical owner mentions) |
| Evidence depth | 13 model-level owner comments. Read individual source comments below. |
Key specs
As listed on the Amazon product page we checked; missing fields are never estimated.
- A3 Premium All-in-One brush head with multi-angle bristles removes up to 2000% more plaque than a manual toothbrush; achieve 1500% healthier gums in six weeks², and up to 100% more stain removal³
- Gentle yet effective clean with up to 62,000 bristle movements per minute; Sonicare Fluid Action supports the bristles to clean by driving fluid deep between teeth and along the gumline
- This electric toothbrush for adults has a light ring at its base that gently lets you know if you're overdoing the pressure; simply ease off when it lights up to help your gums stay protected
- Enhance your oral care routine with 12 brushing settings; select from 4 modes − Clean, White+, Gum Health, and Deep Clean+ − and adjust to one of three intensity levels for a personalized clean
- Achieve your oral health care goals with the Sonicare toothbrush and app: the two pair seamlessly to deliver guided brushing, tips and tricks, and content personalized to you
- Brush head replacement reminder tracks how often and how hard you brush, then reminds you to replace your brush head once it's time; dental professionals recommend changing your brush head regularly
| Brand Name | Philips Sonicare |
|---|---|
| Age Range Description | Adult |
| Included Components | Travel Case |
| Model Name | DiamondClean Smart |
| Target Audience | Unisex-Adults |
| Package Type Name | Box |
| Global Trade Identification Number | 00075020108951 |
| UPC | 075020108951 |
| Model Number | HX9903/15 |
| Manufacturer Part Number | HX9903/15 |
| Other Special Features of the Product | Pressure Sensor,Brushing Timer,Rechargeable,Lightweight,Ergonomic |
| Power Source | Battery Powered |
| Item Firmness Description | Soft |
| Toothbrush Head Shape | Diamond Shaped |
| Operation Mode | Electric |
| Number of settings | 4 |
| Reusability | Reusable |
| Mount Motion | Vibrate |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Number of Pieces | 1 |
| Item Dimensions | 4.37 x 6.85 x 9.92 inches |
| Item Weight | 2.3 pounds |
| Material Features | Reusable |
MySwak is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. Commissions never affect scores, rankings, or verdicts.
FAQ
Is the Philips Sonicare DiamondClean Smart worth it?
Based on 13 Reddit owner comments, the Philips Sonicare DiamondClean Smart scores 3.2 out of 5 (owner comments average 3.5 stars), and the theme owners raise most is durability (11 mentions).
What do Reddit owners complain about with the Philips Sonicare DiamondClean Smart?
The most common critical theme is durability (4 mentions).
How much does the Philips Sonicare DiamondClean Smart cost?
It was $199.96 on Amazon when we checked on 2026-11-07. Prices change, so check Amazon for the current price.
Alternatives
3.1 (5 owner comments)
$159.99 (price as of 2026-11-07)
“Oral-B iO Series 5 – more on the smart side.”
Read review →Philips Sonicare ExpertClean 7500
3.1 (1 owner comments)
$156.99 (price as of 2026-11-07)
“I know this thread is old but I have a sonicare 7500 expertclean.”
Read review →
Oral-B iO Series 9
3.3 (30 owner comments)
$279.99 (price as of 2026-11-07)
“I got the io9 for Christmas a few years back and I absolutely love it.”
Read review →Keep deciding
More Philips SonicareAll electric toothbrushesBuying guideMethodology
Last updated 2026-11-08. Amazon listing ASIN B0CM426N2Y.