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Feno toothbrush review: is it worth buying?


Now that more than a year has passed since the launch, I thought it was just the right time for a complete Feno smart toothbrush review. At a glance, it’s an all-in-one tool for keeping your oral hygiene at a high level. And honestly, functions like health insights, historical tracking, and even early warning detection for dental illnesses surely sound tempting.

The thing is, these are just claims by the brand, and even if they do deliver, does that justify the $254 price tag? My Cybernews team and I have done the research to help you get to the bottom of it all. In this Feno Labs toothbrush review, we will guide you through the main features, pros and cons, pricing, and other key details.

Quick overview of the Feno toothbrush

While there are a lot of intricacies behind this gadget, you don’t really need a Feno toothbrush dentist review to evaluate it objectively. It’s enough to take a quick peek at the main features and specs:

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Product name:
Feno Smart Toothbrush
Brief overview:
Smart toothbrush with AI features and quick full-mouth cleaning
Device type:
U-shaped, full-mouth smart toothbrush with AI features and app integration
Best for:
All-around oral hygiene and full mouth cleaning in less than 20 seconds
Pricing:
$254 (product-only on Amazon), $299 for the Founder’s Edition bundle on the website
What’s included:
Feno smart toothbrush, personalized mouthpiece, oral scanner, and one-month battery charge
Sara Mircevska inga_valiaugaite_author Dylan Sheedy Mirza Silajdzic
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What is Feno and how does it work?

From the get-go, I could see how different the Feno toothbrush was from its regular electric and full-mouth counterparts.

First up, it’s important to note that it’s not compatible with consumers wearing braces or other dental appliances. Nonetheless, it’s a great all-around device. In my mind, it’s what health-tech gadgets should really be: handy tools that make daily chores (or hygiene, in this case) simpler.

The brush has around 18,000 soft, nylon bristles. It’s more than 6 times the count of regular toothbrushes. The cleaning lasts only about 20 seconds, during which Feno claims all plaque should be removed. With that power, you get 250 strokes per tooth over a very short period, so regular brushes are no match.

You can order your U-shaped smart toothbrush from Amazon or via the official website. You’ll then be prompted to the TrueFit mouthpiece selection, which is where you’ll get to order a custom-sized mouthpiece. It’s also a good thing that you get two of them with the package.

User experience

The actual cleaning is just a tiny fraction of what the Feno smart toothbrush can do for your dental health. To properly assess the device's overall value (especially compared to regular toothbrushes), I’ve decided to take a peek at the user reviews and ratings.

My team and I didn’t want you to get just one user's (potentially biased) take. Instead, I paid attention to thousands of reviews, and now that the product has been out for a while, I figure we can trust these.

There’s no better place to start than with the mouthpiece itself. Naturally, its size and weight vary slightly depending on the fit, but in most cases, users describe it as a bit bulky. Doesn’t really sound like a good thing, so I decided to dig deeper.

I understood what most users were saying right away. The piece latches onto the device's main body, so all this weight simply can’t make it comfortable. I also found a few funny comments claiming it’s more like the protective sports mouthpieces Steph Curry wears than a dental appliance.

Despite all this, it does its job flawlessly, as evidenced by numerous user reviews. Most of them state that their teeth felt nearly as smooth as when visiting a dental office for a cleaning.

The learning curve is there, though, especially for those making a transition from regular toothbrushes to smart devices like this one. Still, with a 20-second cleaning time and a handy app by your side, it should eventually be a walk in the park.

Pros of the Feno toothbrush and what it does well

As you can probably tell by now, there are quite a few positive things about the Feno smartbrush. Here’s my two cents on each claimed benefit:

  • Time-saver. Perhaps the most widely-praised feature of this smartbrush is its efficiency, or better yet, its speed. The Feno brush is capable of simultaneously covering the entire mouth area with thousands of soft bristles, which is something that a regular brush simply can’t do.
  • Advanced health insights via the app. You can get AI-powered insights, gum health reports, and even early warnings for decay or tooth illness, all through the native app.
  • Consistent coverage. A standard toothbrush comes with around 2,000 to 2,500 bristles, so the fact that the Feno smartbrush has over 18,000 is an easy win.
  • Personalized mouthpieces. The TrueFit system has proven to be quite handy in selecting just the right mouthpiece size for each individual.
  • In-app support. You can always use the app to reach out to professional support, with real oral health coaches working on your case.

Feno toothbrush cons and key limitations to know about

Understanding the device and its value also requires you to recognize its downsides. Here’s a cons overview from my perspective:

  • Lack of fluoride in the paste. The biggest red flag about the Feno smartbrush is the lack of fluoride in its native paste. Aside from being quite pricey (it goes for around $29 for a single refill), the paste uses xylitol instead of fluoride, which doesn’t have the same anti-caries and remineralization properties.
  • Professional skepticism: While conducting my research for this review, I’ve noticed several comments from professional dentists expressing concern about the 20-second cleaning cycle. It also crossed my mind when researching, but then again, I’m no pro. These guys are, though, and they state that the brush positioning, coupled with the high cleaning speed, leads to uneven coverage at best.
  • Not compatible with braces: Finally, I’d say that being incompatible with braces is a huge downside. Sure, people who wear them probably have their soft orthodontic brushes, but it’s still an inconvenience, especially for those who have to live with braces for a long time.

Who the Feno toothbrush is best for and who should avoid it

Those with a slightly higher budget and a busy life will likely appreciate the automated 20-second cleaning process and the smoothness that comes with it. It’s also a great solution for users who aren’t particularly motivated to focus on each individual tooth. If brushing is more of a chore that you want to get over with before jumping straight into bed, then the Feno smartbrush is an alternative worth considering.

This brush is also a great option for people with motor impairments, as it requires little precision and input from the user. Even for those who tend to overbrush, the smartbrush helps you stay within an optimal brushing timeframe without overdoing it.

People with dental issues that require fluoride for treatment probably won’t benefit much from this device. The same goes for those wearing braces. Finally, the price, which typically ranges from $299 to $400 (based on bundle options), simply doesn’t fit everyone’s budget.

Feno Toothbrush verdict: is it worth it?

Just like with most health-tech devices, the Feno smartbrush is a work of art in the hands of the right user. It stands out with its fine materials and finish, extra-soft nylon bristles, and an extremely efficient 20-second cleaning period.

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The real question, however, is whether you actually need one. I’d say it’s perfect for those who have the means and want to optimize their dental hygiene as much as possible or simply make the tooth brushing experience more fun.

There’s just one important tip you shouldn’t overlook before buying: don’t forget to factor in the ongoing annual costs for maintenance and replacement toothpaste. If it fits your budget, our team’s verdict is clear. Go for it.

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