Brushing your teeth is about to change. The Feno Smartbrush Electric Toothbrush is loaded with technology, making regular electric toothbrushes seem outdated. It’s not just a basic toothbrush; it’s a full-mouth cleaning system with 18,000 bristles, AI health monitoring, and a bold claim: a full clean in only 20 seconds. It sounds like something a dentist and a tech company dreamed up together, so we tested the Feno Smartbrush Electric Toothbrush for a month to see if it really works.
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The Tech That Changes Everything
Taking care of your teeth is important, and Feno’s full-mouth technology is designed to make it easier than ever. When you put in the U-shaped mouthpiece, it wraps around your whole dental arch, so you don’t have to move it around. The 18,000 nylon bristles clean every surface at once, giving each tooth 250 strokes. If you usually rush or skip brushing, the Feno’s 20-second timer and simple design make it hard to find an excuse.
The Feno also comes with an app that uses AI to monitor your oral health. Its built-in scanner takes pictures of your teeth, gums, and soft tissue, then sends them to dentists and AI for review. If you like tracking data, you can see detailed health reports, spot problems early, and get personalized advice. Some people might not like scanning their mouth after every brush, but the app saves your data automatically, even if it’s closed. It can also catch early signs of decay, inflammation, and links to other health issues.
The software is impressive, but it only matters if the cleaning works. Fortunately, the Feno’s TrueFit mouthpiece does a good job. With 18,000 soft nylon bristles in a custom U-shape, the company says it cleans as well as a professional in much less time than a regular brush. Even better, it tracks your oral health over time and lets you know if any issues come up before your next dentist visit.
The Fluoride Reality Check
This is where things get tricky. The Feno only works with its own XyFoam toothpaste, which doesn’t have fluoride and uses xylitol instead. Fluoride is proven to prevent cavities, so if you get cavities easily or your dentist says you need fluoride, this could be a problem. Feno says they’re working on a fluoride version, but it’s not available yet.
Let’s talk about cost. The Feno costs $299 to $400 up front. You’ll also spend at least $240 each year on new mouthpieces and toothpaste, plus $120 a year for all the app features. Over five years, that adds up to more than $2,000. For comparison, a $50 Oral-B costs about $390 over five years, so the Feno is much more expensive.
Who Actually Needs This
Some people might think the Feno Smartbrush is too expensive or not needed, but for the right person, it’s worth it. If saving time matters to you, this toothbrush can change your routine with its AI features. In short, the Feno gives you a custom clean in just 20 seconds instead of the usual two minutes.
You’ll love it if you:
Hate wasting time on brushing and want it done faster.
Struggle with brushing consistency or proper technique.
Have dexterity issues that make traditional brushing difficult
Value comprehensive health tracking and preventive monitoring
Can comfortably afford the premium price
Skip it if you:
Have braces (doesn’t work with orthodontics)
They are cavity-prone and need fluoride protection.
Want proven, decades-tested technology.
Are on a tight budget
Travel frequently (bulky design isn’t portable)
The Verdict
The Feno Smartbrush is a real step forward in oral care. The 20-second clean feels thorough, the AI helps catch problems early, and it definitely saves time. After a month of using it, my teeth felt smoother, my dentist noticed my gums were healthier, and I even started to enjoy brushing.
Still, the lack of fluoride is a real issue, and the price is high—over $2,000 in five years. Regular electric toothbrushes also work well if you use them right. But if you want to try the latest in teeth cleaning and can afford it, we recommend checking out the Feno Smartbrush. It costs $299 to $400, so it’s not cheap, but it could be worth it for busy people who value their time.
Final score: 8/10 for time-conscious guys, 6/10 for budget-conscious buyers.
