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20-Second Brush.
Oral health is linked to overall health — take control with Feno
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4 Easy Payments With Affirm
Free + Fast Shipping
Money Back Guarantee
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Equipped with 18,000 bristles, the Feno Smart Toothbrush covers each tooth and the full gumline at once, reducing total brush time by 75%.
"A toothbrush with AI, a camera, and a subscription.I tried out the Feno toothbrush: a full-mouth, U-shaped toothbrush. It brushes your entire mouth in 20 seconds as opposed to the typical 2-minute brush time recommended for standard toothbrushes. The Feno toothbrush seemingly did a pretty thorough job of brushing my teeth and was quick and comfortable." - Owen Grove
"The big appeal is the time saved, and having grown used to brushing my teeth for two minutes at a time, a brushing experience that ends in 20 seconds is really strange and quite delightful. The feeling of cleanliness is undeniable, Feno says that its internal pilot studies yielded 99% plaque removal in three days, while achieving that coveted 75% reduction in brushing time." - Stephen Warwick
The brush has cameras built into it that allow you to take photos and submit them in the app to get analyzed for oral health issues.
The Feno Smartbrush, in addition to being a cleaning tool, analyzes oral health markers to detect broader systemic risks. Its app allows users to track brushing habits, provides an oral health report and gives users the ability to chat with a oral health coach.
The average toothbrush has 2,500 bristles, while the Feno Smartbrush has an average of 18,000. Also, the average brush cycle takes 120 seconds while the Feno Smartbrush takes 20 because each tooth is being brushed simultaneously due to the design. - Jon Marashi, DDS
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Systemic Benefits of
Oral Health
Health Correlation Insights
Uncover links between your oral health and risks like heart disease or diabetes.
Historical Trend Tracking
Spot early signs of inflammation or decay before symptoms appear.
Personalized Tips
Get AI-powered tips tailored to your unique oral health needs.
Early Warning Detection
Catch potential issues early and avoid costly treatments.
Protection & Integration
Enjoy purchase protection and seamless support from home to clinic.
Revolutionize Your Routine in 20 Seconds
Built-in oral scanner for remote analysis, hygiene-focused design, and a comfort-fit mouthpiece—upgrading both your smile and health.
Instant, magnetic wireless charging
7-day battery for travel and portability
Syncs data to the Feno Plus app for personalized tracking
Revolutionize Your Routine in 20 Seconds
Get a superior clean with Feno Foam. Our xylitol formula whitens and fights cavities, while the rich foam reaches every corner, promoting oral health and reducing risks of major diseases.
Xylitol strengthens enamel
Wild mint for lasting freshness
Foaming action cleans deeply
Revolutionary Brushing for Next-Level Oral Health
Buy Now20-Second Full Mouth Brushing
Complete oral care in 20 seconds, saving you 21 hours per year while delivering optimal results.
Simple Personalized Mouthpiece
Optimized for teeth coverage, gumline stimulation, and plaque removal.
18,000 Precision Bristles
Delivering 250 strokes per 20 seconds, ensuring every brush is efficient.
Free Health Insights
Connect oral health to overall health with complimentary access to insights and professionals.
With electric toothbrush
Even when using the most advanced electric toothbrushes, people often miss areas of the mouth or brush inconsistently and not long enough — all of which adds up to plaque build-up.
With Feno Smartbrush™
The Feno Smartbrush significantly reduces the likelihood of human error, achieving near-complete plaque removal and a consistent full-mouth clean in just 20 seconds.
Oral Health: Beyond Smiles, It’s Overall Health.
What the Professionals Say
Experts recommend the TrueFit Mouthpiece for its precision, comfort, and personalized fit.
- ASAidan S.Verified ReviewerYesterdayRated 5 out of 5 starsThe way to optimize your life
If you're calculating pure dollar-for-dollar ROI, this probably isn’t the product that “pays for itself”—and that’s fine. Not everything needs to be a financial decision. People don’t buy a Ferrari because it’s the smartest money move; they buy it because it performs better and is simply more fun to use.
I’ve always hated brushing my teeth—strange thing to admit, but true. This is the first product that’s made me actually enjoy it. It turns the whole process into something almost gamified: a quick, engaging, 30-second routine that feels more like a small win than a chore. Instead of dreading a couple minutes of brushing, I’m tracking progress and getting through something I need to do in a way that actually feels good.
I would recommend this for the super busy adult or the super ADHD child. I'm a huge fan.
- KBKyler B.Verified Reviewer4 days agoRated 5 out of 5 starsExceeds Expectations!
I’ve always been really particular about my teeth. I’ve invested in electric toothbrushes, dental tools, and anything that keeps my smile and gums healthy. Even just a few days into using the FENO toothbrush, I can already tell the cleaning is on another level. It’s super thorough and way more intentional along the gumline, which is usually where I struggle with sensitivity. This brush actually feels like it gets every surface, and that gives me a lot of confidence that my whole mouth is being taken care of.
Even with the best electric toothbrushes, you never really know if you’re catching everything, especially around the gums. With this one, I feel like I finally am. I also like the scanning feature—haven’t used it much yet, but I’m sure I’ll get into it.
The toothpaste tastes great and works really well. Just a note for anyone who cares about fluoride: FENO’s paste doesn’t include it, so if that’s important to you, you may want to supplement with a fluoride option as well.
Overall, I’m impressed. This brush feels intentional, effective, and honestly kind of next-level for gum and tooth health.
- AWAnnie W.Verified Buyer5 days agoRated 5 out of 5 starsMy teeth have never felt cleaner
Yes, when you first try the Feno, it is awkward and cumbersome but then once you get the hang of it, you can’t believe you’ve ever lived a day without it. My teeth feel and look cleaner and it makes me feel confident that I spent enough attention to them during a brushing session. Feno has had its kinks, but luckily the customer service is very easy to contact and they are very helpful.
- HGHemant G.Verified Reviewer6 days agoRated 5 out of 5 starsNice Product
Useful Product
- HGHemant G.Verified Reviewer6 days agoRated 5 out of 5 starsSuper Buy and Worth Using Feno everytime
Super cool gadget for your teeth and good travel companion. Waiting for the Fan Box Desperately
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.
How does the Feno app provide personalized feedback and advice on oral care?
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.
Is there privacy built-in with the scanner?
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.
How do I know the mouthpiece size that is right for me?
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.
Product Comparison
Buy NowDetails
20 second full-mouth brush
Health Insights App
At-home oral scanner
Personalized mouthpiece
Connected Health Coach
Full-mouth Brush
Electric Brush
Hand Brush