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SMARTBRUSH BY FENO
The 20 Second Toothbrush
Two minutes of brushing only works if your technique is right every time. The Smartbrush gives you the same thorough clean on every cycle. In twenty seconds.
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★★★★★
4.9 · 500+ reviews · 99% would recommend
4.9 ★★★★★ · 500+ reviews · 99% would recommend
Covered in
Transform Your Oral Health
Full Coverage
Every tooth cleaned at once, front, back, and gumline.
6x Faster
A complete clean in the time it takes to rinse.
True Fit
7 sizes to find your perfect fit
Monitor Changes
Scan your mouth and see what’s changing
See Your Progress
The app scans your mouth and shows you what changed.
What’s included
✓
Feno Smarthandle
✓
✓
3 tubes of Feno Foam
Tongue scraper
✓
Complete oral care kit
Founder’s Edition Bundle
★★★★★
4.9 · 500+ reviews
99% would recommend
Free delivery in the USA
Free US shipping · Money-back guarantee · Cancel anytime
What’s included
✓
Feno Smarthandle
✓
✓
3 tubes of Feno Foam
Tongue scraper
✓
Coverage
Every tooth gets the same clean.
Most brushes work a few teeth at a time. The Smart Brush wraps the whole arch and cleans front, back, and gum line together.
99%
up to 99% coverage of the full arch, every cycle
96%
of owners rated the clean better than their previous toothbrush (survey, n=80)
18,000
bristles, compared to about 2,500 on an average electric brush
*Individual results may vary.
How it works
A better way to brush.
01
Add the foam
Two pumps onto the bristles. The micro-foam reaches where paste struggles to.
02
Position the brush
The mouthpiece is sized to your own arch. Let your teeth settle into it, no biting and no pressure.
03
Press and relax
It runs, then stops on its own. Every tooth gets the same attention, every time.
Twenty Seconds.
A Consistent Clean Every Time.
At the next cleaning
Your dentist will notice.
“The hygienist looked at my teeth and said ‘well, you didn’t leave anything for me to do!’ I have never been told this at the dentist.”
★★★★★
Denise G.
Verified buyer
★★★★★
“My dentist couldn’t believe the change in my mouth health.”
Jason
Verified buyer
★★★★★
“My dentist commented on how great my teeth and gums are looking.”
Meghan H.
★★★★★
“Such a timesaver, and simply better than I could do myself. My hygienist commented on my teeth.”
Tory M.
More Reviews
What Feno users actually say.
★★★★★
“Happy I got it. Saves me over 2 hours a month on brushing and my mouth feels perfectly clean.”
Kal W.
★★★★★
“A thorough and quality cleaning in a
fraction of the time, with no mess and
results that you can count on.”
Bill C.
★★★★★
“Cleaning my teeth in just 20 seconds feels incredible, and the TrueFit Mouthpiece ensures every tooth gets attention.”
Andrew
Feno Plus
See what your dentist sees.
Twice a day, not twice a year. You track your sleep and your steps. Now your oral care gets a score too.
Teeth
Tongue
Weak
Fair
Feno provides educational insights, not medical diagnoses. Individual results may vary.
- DDavidVerified Reviewer4 days agoRated 5 out of 5 starsTruly magnificent customer support by the Feno team!
Fey and Mona were absolutely wonderful with me. World class customer support!
I love the Feno Smartbrush. It really helps to reduce my severe OCD brushing... so I'm very grateful to Fey & Mona for sending me a replacement after an issue with my original Smartbrush.
Thank you so much to you both, I greatly appreciate your help.
FENO ROCKS!!! :-)
- BBBrandon B.Verified Reviewer6 days agoRated 4 out of 5 starsNew
So far so good
- LOLynne O.Verified Reviewer6 days agoRated 5 out of 5 starsLove love love this product
It arrived sometime in July and I haven’t looked back to old school brushing. At first, you don’t know how 20 seconds can get it done, but it does. I highly recommend this product for not only the product itself, but the service is tremendous.
- KCKevin C.Verified Reviewer1 week agoRated 5 out of 5 starsBest toothbrush I have ever used!
Love this toothbrush, it’s quick and gets the job done! Won’t ever go back to a regular one. The customer support has been great and responsive as well!
- ANAntonio N.Verified Reviewer1 week agoRated 5 out of 5 starsThank you Shane
I had a great experience with Shane CSR today. He was able to trouble shoot a problem I was having. He quickly solved the issue to my satisfaction. Thank you Shane.
Questions
Frequently asked questions
How is the Feno Smartbrush™ different from other electric toothbrushes?
The Feno Smartbrush is a radical step forward for oral health. The average toothbrush has 2,500 bristles; the Feno Smartbrush has an average of 18,000. The average toothbrush brushes each tooth one at a time; the Feno Smartbrush brushes all teeth simultaneously. The average brush cycle takes 120 seconds; the Feno Smartbrush takes 20. The Feno Smartbrush is also the first brush that takes deep scans of your teeth and gums to provide ongoing insights into the condition of your oral health. An astonishing 90% of individuals suffer from some form of gum disease, an oversight we aim to correct with the Feno Smartbrush, designed as the product to bridge oral health and overall health.
Does the Smartbrush need any user technique to work effectively?
The Feno® Smartbrush is designed to be user-friendly and requires minimal technique for effective use. While the advanced technology, including the TrueFit™ Mouthpiece and ArcFlow Tech™, ensures comprehensive cleaning, users should still follow a simple technique for optimal results. While the Smartbrush is on, it is recommended to move the TrueFit™ Mouthpiece in a slow circular motion. This motion helps to achieve optimal bristle contact with all areas of the teeth and gums, enhancing the brushing results.
How does the Feno app provide personalized feedback and advice on oral health?
The Feno app makes personalized oral care simple. Use the app to capture images of your mouth, including your gumline, tooth surfaces, and tongue. Each scan syncs automatically to your Feno app profile, where you'll see any potential areas of concern and can track changes over time. Have a question about your results? Just ask our AI chatbot, built right into the app, for instant answers.
Is there privacy built-in with the scanner?
Yes, the Feno Smartbrush includes multiple built-in privacy features for the scanner. The device is equipped with a secondary privacy chip, ensuring that all operations related to the scanner are securely handled. This chip prevents remote access to the scanner, enhancing the security and privacy of the device. Additionally, all data collected by the scanner is encrypted, providing an added layer of security to protect users' personal information.
Does Feno work without the app?
Yes. The brush is fully functional on its own. The app just adds to it: tracking, coaching, and insights that help you get more out of every session over time.
What's included with Feno, and are there any ongoing costs?
Feno is a personalized-fit, motorized, sensor-equipped device that brushes your whole mouth in seconds. There are two consumables to plan for: Feno Foam, and a fresh TrueFit Mouthpiece we recommend changing every three months. Everything's listed upfront, so you always know what to expect.
Can I use my own toothpaste, or do I need Feno Foam?
You can use any toothpaste you like. That said, Feno Foam is built for the mouthpiece, it spreads evenly across all 18,000 bristles at once, so every tooth gets the same coverage in that 20-second clean. Toothpaste works; foam just works better with how Feno brushes.
What if the mouthpiece doesn't fit my mouth?
Feno doesn't ship one universal size. Based on your mouth scan, we match you to the right TrueFit Mouthpiece from our seven sizes, a personalized fit, not a one-size tray (which is exactly why older U-shaped brushes failed). If it doesn't feel right at first, it's often just seating: place it in gently with the device off, bite down softly, and wiggle your jaw so the bristles reach every tooth. Still not comfortable? Reach out to support and we'll resize you. Your first two size exchanges are free.
Am I locked into a subscription?
No. Feno Plus is optional and you can cancel anytime from your account. You can also buy refills of Feno Foam one off whenever you need them.
What if I don't like it?
Every order is covered by our money-back guarantee: you have 30 days from delivery to return it. For US orders we provide the return label; outside the US, return shipping is covered by you. Just reach out to support and we'll walk you through it. And because your first two size exchanges are free, an imperfect first fit never costs you anything.
Who is Feno not for?
Feno isn't the right fit for everyone. We don't recommend it for anyone under 18, anyone with active braces, anyone with a crown placed within the last 4 weeks, or anyone with a pacemaker. If any of these apply to you, we'd suggest checking with your dentist before ordering.
Founder’s Edition
Your cleanest mouth starts tomorrow.
$199 when you subscribe, $100 off the one-time price. Free US shipping, HSA and FSA eligible, and a money-back guarantee.
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Crafted for health, driven by innovation.
How to use
Individual results may vary. Feno provides educational insights, not medical diagnoses, and is not a substitute for professional dental care. Owner survey figures are drawn from Feno customer reviews and post-purchase survey responses; sample sizes are noted alongside each figure.
Founders Edition
$299
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