ITO Surface — Step On Naturally

​No Electrode Pads to Line Up With.

Unlike scales with four separate metal electrodes, F3 turns the full ITO surface into one continuous contact area. There are no individual pads to line your feet up with—just step on naturally for a simpler everyday body composition routine.

Precision Architecture — Engineered from the Inside Out

MEDICAL-GRADE PRECISION

From the full-surface ITO conductive layer to the rigid 5 mm tempered-glass platform and internal measurement system, every layer is engineered to reduce contact variation and support consistent weight and body composition measurements over time.

FondCircle App

The FondCircle App connects with supported devices to keep your readings organized, review trends over time, and share selected reports with the people you trust.

Easy to Track

The ability to view weekly, monthly, or yearly trends gives you an overview of your blood pressure’s evolution.

Insightful trends

The ability to view weekly, monthly, or yearly trends gives you an overview of your blood pressure’s evolution.

Invite Your Family

Invite your family to track together or share your information.

Easy to share

Share your information with family or doctors under your permission.

Stay Connected

to Your Health Records.


Connect supported FondCircle devices, track trends.

Review AI-powered insights, and share reports with the people you trust.

Data Protection

We protect your health.

We also protect your privacy.

The Fondcircle app handles your health data in accordance with HIPAA standards. Your readings stay on your device by default — sharing through CareShare is always initiated by you, and only reaches the people you choose. We do not sell your health data.

Learn More

Specifications

ModelFBF-F3
Product typeBody Fat Analyzer
Measurement methodITO conductive film
Measurement range5-180 kg / 11.0-396.8 lb
Unitskg / lb
st:lb in App (final behavior TBC)
Resolution0.05 kg / 0.1 lb from 5-100 kg
0.1 kg / 0.2 lb from 100-180 kg
Startup weight8 kg (±3 kg)
ConnectivityBluetooth 5.2 App sync
DisplayColor LCD, 94 x 43 mm
On-scale metric cycleBone mass (BMC), muscle mass, weight, body type, body fat %, body water %, BMI
App metrics15 metrics: weight, fat mass, body fat %, protein %, visceral fat level, body water %, muscle %, skeletal muscle %, muscle mass, body age, BMR, body score, body type, Body Health, bone mass
Power4 x 1.5V AAA batteries
Auto power-off15 ± 3 seconds
Unit switchingRear button
Glass thickness5 mm tempered glass
Operating environment5°C-40°C / 41°F-104°F
0%-90% RH
Storage environment-20°C-60°C / -4°F-140°F
Dimensions300 x 300 x 25.7 mm
WeightApprox. 1.48 kg without batteries (final weight TBC)
Body composition use rangeAdults 18-65 years
Height 100-220 cm
Important use noteBody composition requires App setup and connection
Without the App, the scale displays weight only
Download User Manual (PDF)

What's in the Box

  • FBF-F3 Body Fat Analyzer × 1
  • 4 × AAA batteries
  • User manual
  • Quick start guide

Customers praised this smart scale for accurate measurements and comprehensive health tracking including body fat, BMI, muscle mass, and water percentage. Setup is quick with easy Bluetooth pairing. However, some noted the app lacks integration with Apple/Google Health and the build feels less premium with plastic components.

  • 5 stars: 13 (76%)
  • 4 stars: 4 (24%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
T
Timothy
great scale with app to track

This scale is not only accurate but has an app that you can use on your phone to track your weight. The only downfall, at the moment, is that you have to be on the app when weighing in, in order for the app to get the data. However you can weigh yourself with or without app on to see your current weight on the digital screen. This is very easy to use and the app is simple to create an account and navigate through without any complicated processes. It connects to your phone quickly trough Bluetooth and appears to be accurate. we have 2 other scales that my wife and I have used and they all have similar accuracy with only being off by maybe an ounce or 2

Originally posted on Amazon. Amazon Vine customer review of free product.
https://www.amazon.com/gp/customer-reviews/R38LU84FEF1ANY

T
The Angel Radness
Sleek and pretty simple

I like the appearance of this scale, and it’s easy to use. I just give it a quick step to turn it on and calibrate, then an easy weigh. It’s been a very handy tool to have during my weight management journey. It’s very thin, and a lovely glass top. It fits well in my very small bathroom, which says a lot.

There is an app that you can download if you want to keep an easy record of your values, but it’s not required to download to just weigh yourself if you don’t want to. (That matters to more people than you know!) but if you choose to download the app, the scale will save your values until you upload them to the app. Through the app you can also assign different family member profiles to keep things straight, as well as a full health app to also enter your other health records like blood pressure, etc.

So far it’s been very accurate, and I know this because I work in healthcare and have a chronic disease where I get weighed often at my appointments. The numbers are large and easy to read.
My only concern is that you don’t have very much time to look at your weight before it automatically shuts down. But I suppose that’s just what you gotta give for extending the battery life. A suggested improvement for this scale would be to make it rechargeable, but it takes so little battery that I don’t know if that would even be practical.

Originally posted on Amazon. Amazon Vine customer review of free product.
https://www.amazon.com/gp/customer-reviews/R13DGD8KK8PWI3

T
Tabby (Confessions of a Book Blogging Addict)
Must have!

This scale is what my house needed. It's stylish and modern looking. Easy to read, clear display and a perfect size!

Originally posted on Amazon. Amazon Vine customer review of free product.
https://www.amazon.com/gp/customer-reviews/R1GMKG8K5P6TZ7

T
TMI T-rex
Accurate scale, measures more than just weight!

This scale is a great way to track more than just weight. If you install the app, the scale is able to give you other measurements such as muscle mass, water weight, muscle weight, and BMI. In addition, the scale looks sleek and feels high quality. It is easy to use, just stand on it and it turns on automatically. Given all that this scale measures, I think it is sold at a fair price. My biggest critique is that I do not like using apps and hooking up to blue tooth. I wish there was a manual way to enter height, weight, and age. I am the kind of person that does not carry my phone everywhere, so its inconvenient to have to use the app everytime I just want to step on the scale. Yes, I can get my weight without the app, but it would be nice to not need it for the other measurements.

Originally posted on Amazon. Amazon Vine customer review of free product.
https://www.amazon.com/gp/customer-reviews/R1DBGVT9PILG63

V
Vine reviewer
Accurate, Easy to Use, and a Solid Value

I picked up this FondCircle Smart Scale through the Vine program and have been pleasantly surprised by how well it performs. Setup was simple: download the app, enter your personal information, and connect the scale via Bluetooth. One thing to note - if you don’t put your info into the app, the scale will only show your weight. All the additional metrics (BMI, body fat, etc.) require the app data to calculate properly.

In terms of accuracy, the scale matches the readings from my other scales, and the BMI calculation is correct. Body fat percentage was slightly different compared to my other scale that uses a hand‑grip sensor - which I expect to be more accurate - but the difference was less than 1%, so nothing concerning. Considering that my other scale costs almost twice as much, this one delivers very good value for what you get.

Overall, it’s easy to use, measures reliably, and is priced reasonably for the features it offers. I’m pleased with it so far.

Originally posted on Amazon. Amazon Vine customer review of free product.
https://www.amazon.com/gp/customer-reviews/R2JZACO86VI86L

c
customer review
Seems pretty accurate and performs like my high-end scale!

This scale gives very consistent, accurate body weight and composition readings, comparing really closely to much more expensive scales I have used.

The ITO tempered glass surface looks sleek and clean, and the display is bright and easy to read right off the floor. Setting up the Bluetooth app sync is quick and makes tracking trends over time super effortless. Considering the quality, accuracy, and all the metrics it provides, it is a fantastic value for the price!

Originally posted on Amazon. Amazon Vine customer review of free product.
https://www.amazon.com/gp/customer-reviews/R3FXLVBLMMFFBL

J
JeffG
Clear Upgrade with Great Display and App, Though a Bit Fiddly to Wake Up

This was a solid replacement for my older scale. The larger display is a major improvement, making it super easy to read your weight at a glance without having to strain. Connecting it to the phone app is a really nice addition for tracking body metrics over time, and its thin, sleek design makes it easy to slide out of the way or store under a vanity when not in use.

​My only minor complaint is that it can be a little tricky to turn on or wake up at times, occasionally requiring an extra step or tap before it registers. Other than that small quirk, it performs well and looks great in the bathroom.

Originally posted on Amazon. Amazon Vine customer review of free product.
https://www.amazon.com/gp/customer-reviews/R2HXEZQRGN64NU

N
Nos4r2
Good smart scale, just don’t treat every number like a medical test

This is a nice upgrade from a basic bathroom scale. I like that it shows more than just weight, and the larger display is easier to read than some scales where you have to immediately open the app to see anything useful. The app setup was straightforward enough, and I like being able to track things over time instead of just staring at one weigh-in and trying to make sense of it.

That said, with these smart scales, I always take the body fat, muscle, water, bone mass, and other body composition numbers with some common sense. I look at those more as trend tracking than exact medical-grade measurements. If the numbers are moving in the right direction over weeks or months, that is useful. I would not get too worked up over one reading, especially since hydration, time of day, and other normal stuff can affect the results.

Overall, I think this is a good smart scale if you want more information than a regular scale without going all the way into the expensive handle-style body composition models. It looks clean, the display is easy to read, and the app tracking makes it more useful for weight loss or fitness goals. The price tag is very reasonable but that is also something to be mindful about considering all the claims this scale is making.

Originally posted on Amazon. Amazon Vine customer review of free product.
https://www.amazon.com/gp/customer-reviews/R2FALLP0HK8WBV

M
Mari
Great info

This smart scale has been a great upgrade from a basic bathroom scale. The large ITO tempered glass surface feels sturdy and premium, and the LCD display is clear and easy to read. The 400 lb capacity makes it suitable for a wide range of users.
I like that it tracks more than just weight, including BMI, body fat, muscle mass, and other body composition measurements. The Bluetooth app sync makes it convenient to monitor progress over time and see trends instead of relying on a single number.
Setup was simple, and the scale connects quickly with the app. The sleek design also looks nice in the bathroom and doesn’t take up much space.
While body composition readings are best used for tracking changes rather than exact measurements, this scale provides helpful information for staying motivated and keeping an eye on fitness goals.
Overall, this is a well-designed smart scale with a clean look, useful features, and reliable performance. A great choice for anyone wanting more insight into their health and progress.

Originally posted on Amazon. Amazon Vine customer review of free product.
https://www.amazon.com/gp/customer-reviews/R1LCTSSYDMUMDI

C
Creative Journey
Compact smart scale for the bathroom

This body scale features ITO glass which replaces the old style metal electrode pads with this new conductive glass, which is more aesthetic and does not require precise foot placement. The LCD is easy to read and it shows primary metric such as weight or body weight %. It also provides additional metrics such as muscle mass, water weight and so on. The only con that since it's glass, the surface can attract dust, water spots and footprints but it is easy enough to wipe down. Another note is that the dedicated app is needed in order to see and to keep track of the weight and more data points. Other than that, for the price range of sub-$40 for a smart scale, this is of good value and comparable to other brands on the market. This would be fitting as a housewarming gift as well.

Originally posted on Amazon. Amazon Vine customer review of free product.
https://www.amazon.com/gp/customer-reviews/R179N0DN6YR5OE

A
AmazonCustomer
Easy-to-Use Smart Scale with Helpful Health Tracking Features

I’ve been using this smart scale for tracking my fitness progress, and I’m impressed with how much information it provides beyond basic weight. Setup was simple, Bluetooth connected quickly, and the app was straightforward to use. The scale tracks useful metrics like body fat, BMI, muscle mass, water percentage, bone mass, and BMR, which gives a better overall view of changes over time rather than focusing only on weight. I also appreciate the built-in display because I can quickly check my reading without always opening the app. The tempered glass surface feels sturdy, and the non-slip feet keep the scale stable during use. The readings have been consistent compared with other scales I’ve used, which gives me confidence in the measurements. The app makes it easy to view trends and supports multiple user profiles, making it practical for a household. My only wish is that the app had broader compatibility with more health platforms, but the core tracking features work well. Overall, this is a reliable and feature-packed smart scale that makes monitoring health goals simple and convenient.

T
TOGA
A very accurate scale

First off, I have size 13 feet and my feet actually fit on this scale and they don't overhang on it. You can put the app on your smart phone to get a lot of information, if you don't it will give you your weight. I stepped on and off it every 30 seconds and all three readings were the same. It runs on 4 AAA batteries. I don't know how long the batteries will last, but if I get a year, I'll be happy. Be it for fitness or to just know your weight, this is a excellent scale.

B
Bobby D
Accurate

I needed a new scale for one of my bathrooms. This is very Durable and strong and holds weight well. It is very accurate and lines up with other scales in my house. This is great for my tracking weight loss.

C
Catherine F
Great sync and function. Runs on batteries.

Click to play video
The summary of my review is, I literally love every single thing about this scale, except the fact that it’s not rechargeable and you have to put batteries in it. The platform is easy to stand on and does great to take all of the measurements in just a few seconds. I’ve had a different one where you had to unlock your phone and that was annoying. I love that this communicates directly with Apple health. The data seems pretty accurate and you can save settings for multiple members of your family. It looks good because it’s pretty and modern and isn’t an eyesore in your bathroom. It doesn’t slip inside everywhere. The display is clear and I can read it even without my glasses on in the morning. I find it motivating to track more than weight! Even if the weight doesn’t change, it is really cool to see muscle mass change, and know that you are doing good things for your body. That can be really helpful on a fitness journey. The price is really great for this nice of a scale. I think it’s made very well and as a high-quality. My literal one and only complaint is the batteries. It’s easy to clean with the smooth surface and can hold up to 400 pounds. That means it’s built sturdy and built to last! I’d consider this a great value and purchase if you want to track your health efforts!

Originally posted on Amazon. Amazon Vine customer review of free product.
https://www.amazon.com/gp/customer-reviews/R1AUNTQ7IODV73

J
Jester90210
A bit pedestrian, but not bad

I’m familiar with FondCircle because I recently ordered their finger heart rate monitor device. They have an app and it works well for their devices, but really does not communicate at all with Apple Health or Google Health, two other programs I use to monitor my health. While my current digital scale works well, I no longer use FitBit, so it doesn’t input the measurement automatically into the app. When I saw this device, I thought it would at least input the info into the FondCircle app, which is does.However, because I want to keep track of my weight in Apple and Google Health also, I have to manually input it there as well. Not a big deal, I’m used to it, but I just wish the FondCircle app integrated better.As far as the scale goes, it’s much lighter than my other scale, but it also seems a bit more flimsy. It feels almost as if it was built with way too many plastic parts. There’s this shiny coating on the front of it that i thought was a removable protective film. I really tried to take it off when I realized there was no protective film, that was just how it came. There was a sticker with instructions on the front that was easily removed, however.In terms of accuracy, I’ve been using it for about two weeks now and the readings seem pretty accurate. I tested it by placing my older scale next to it and weighing myself on both at the same time. The difference in the readings were negligible which was reassuring.In terms of design, my other scale is a very modern black-on-black design that looks almost futuristic compared to this more utilitarian-looking white scale. It doesn’t really bother me anyway because I keep it hidden out-of-sight.I like that I have both a scale and a heart-rate monitor that link automatically to this app and the pricing seems pretty much in line with others of its class. If it felt a littler more sturdy and higher quality, I think I would probably have given it 5 stars. As it is I think I’m being generous with four.If you do a search for digital scales that sync with fitness apps, you’ll find a wide range of prices, so i think this scale at $39.99 (at the time of this writing) is more-or-less in line for what it is. Not super sleek or impressive, but will get the job done.

D
DJ Kitty
Excellent smart scale from local company

I enjoy supporting local businesses and FondCircle is located near my hometown in the OC.I've been used this smart body composition scale a few times now, and I'm really impressed with both its accuracy and ease of use. The setup was quick, Bluetooth paired with my phone on the first try, and the FondCircle app was easy to navigate.I love that it measures much more than just weight. Being able to track body fat, BMI, muscle mass, water weight, bone mass, BMR, and other health metrics gives me a much better picture of my overall progress. The LCD display is also a great feature because I can instantly see my key measurements without opening the app.The build quality feels premium, with the tempered glass surface and sturdy, non-slip feet making it feel stable and safe to use. The full-surface sensor seems to provide consistent readings every time.The app is another highlight. It automatically syncs my measurements, shows trends over time, integrates with Apple Health, and even supports multiple family profiles, making it perfect for our household.Overall, this is an excellent smart scale that combines thoughtful design, useful features, and reliable performance. If you're looking for a simple way to track your fitness and health goals, I highly recommend it.

b
bernadette laganella
A clear and easy to use scale at a great price

Setup was quick and easy, connected to the app on my phone in just a couple of minutes, and I was stepping on and getting readings right away. I like that it gives me way more than just weight. Seeing the body fat percentage, muscle mass, and the other metrics all in one place gives a much fuller picture than a regular scale. The display is clear and easy to read, even first thing in the morning. Having all my numbers logged and tracked over time in the app has actually kept me a lot more accountable with eating healthy. It's motivating to watch the trends move in the right direction instead of just fixating on one number. Easy to use, and it's become part of my daily routine.

FAQs

Please read our FAQs page to find out more.

How do I set up the F3 for my first measurement?

Download the FondCircle App, create or sign in to your account, and complete your profile with accurate age, height, and gender information. Place the F3 on a hard, level floor, install the four AAA batteries, turn on Bluetooth, and connect the scale in the App. Before measuring, tap the scale once and wait for 0.0 to appear.

Why is the F3 only showing my weight?

Body composition analysis requires an active App connection and a completed user profile. Make sure Bluetooth is on, the FondCircle App is open, and the correct profile is selected. Measure barefoot with both feet fully contacting the surface. Users outside the supported body composition range may receive limited results.

How can I get more consistent body composition readings?

Use the F3 barefoot on a hard, flat floor and wait for 0.0 before stepping on. Keep your feet clean and dry, stand still, and distribute your weight evenly. For more meaningful trends, measure under similar conditions each time—preferably at the same time of day and before meals. Hydration, food intake, exercise, bathing, and other daily changes can affect BIA estimates.

Can multiple people use the F3?

Yes. The F3 supports multiple user profiles through the FondCircle App. Each person should use a profile with their own age, height, and gender information. Keep the App connected and confirm or switch to the correct profile before the weight reading locks when needed.

Who should not use body composition measurement?

Do not use the body composition function if you have a pacemaker or another implanted electronic medical device. It is also not recommended during pregnancy or for infants and young children. Full body composition analysis is designed for users ages 18–65 with a height of 100–220 cm. The F3 is intended for home wellness tracking and does not diagnose or treat medical conditions.

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