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TANITA's BF-679W FDA Cleared Multi-Frequency Weight / Body Fat / Body Water Scale

4.4 4.4 out of 5 stars 1,366 ratings
$69.99 $69.99 per Count
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Purchase options and add-ons

Brand TANITA
Color Silver
Weight Limit 300 Pounds
Material Plastic

About this item

  • FDA CLEARED, DARE TO COMPARE! Uses TANITA's Bioelectric Impedance Analysis (BIA) technology for body fat and body water measurements
  • World's ONLY consumer Multi-Frequency weight, body fat, and body water home scale
  • Weight-only feature shown in pounds, kilograms, and stone-pounds
  • 300 lb. weight capacity, memory function for 2 adults, review past readings
  • Includes 3-year warranty and batteries
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From the brand

Previous page

  2. TANITA - What Is It We Do?

    Launched in 1923, we are the leader in manufacturing Japanese-Made scales:

    Professional, Body, Consumer, Kitchen & Mini Scales

    TANITA offers products that give you the ability to monitor your body, the effects of diet and your fitness routine.

    We make innovate scales that includes weight-only, body fat, body composition, segmental body composition, radio wireless scales, and over-all health monitors.

    Trusted by physicians, researchers, and hospitals worldwide Tanita products provide the ultimate in accuracy and reliability.

  3. Digital bathroom scale Body weight Smart Electronic weighing Precision machine BMI Body fat

    Our Purpose

    Make the world a healthier, happier place through the power of health insights and empower you to take control over your own health.

  4. Digital bathroom scale Body weight Smart Electronic weighing Precision machine BMI Body fat

    Our Mission

    Tanita continuously strive to find new perspectives that enable people across the world to improve their health and live happier lives.

  5. Scale Plus Body Fat & Body Water Monitor
    Scale Plus Body Fat & Body Water Monitor
    Scale Plus Body Fat & Body Water Monitor
    Scale Plus Body Fat & Body Water Monitor

    Consumer Scales

    Visit the Store

  6. Digital bathroom scale Body weight Smart Electronic weighing Precision machine BMI Body fat
    Digital bathroom scale Body weight Smart Electronic weighing Precision machine BMI Body fat
    Digital bathroom scale Body weight Smart Electronic weighing Precision machine BMI Body fat
    Digital bathroom scale Body weight Smart Electronic weighing Precision machine BMI Body fat

    Professional Scales

    Visit the Store

  7. Digital bathroom scale Body weight Smart Electronic weighing Precision machine BMI Body fat
    Digital bathroom scale Body weight Smart Electronic weighing Precision machine BMI Body fat
    Digital bathroom scale Body weight Smart Electronic weighing Precision machine BMI Body fat
    Digital bathroom scale Body weight Smart Electronic weighing Precision machine BMI Body fat

    Mini Scales

    Visit the Store

  8. Digital bathroom scale Body weight Smart Electronic weighing Precision machine BMI Body fat
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Product Description

The Tanita BF-679W Multi-Frequency Body Fat / Body Water Monitor calculates body fat and body water levels using Bioelectric Impedance Analysis (BIA) technology. By sending a safe, low-level electrical signal through the body, Tanita’s exclusive FDA cleared BIA technology, measures weight, body fat, and body water %. BIA is quick and non-invasive, and is one of the most thorough and reliable ways to measure body composition, clinically comparable to DXA (dual-energy x-ray absorptiometry) and hydrostatic (underwater) weighing.

The BF-679W features a weight capacity of 300 pounds, it operates for greater than 2 years on four AA batteries (included).

Tanita's Body Water Range Chart

Total Body Water % Measurement

Total Body Water % is the total amount of fluid in the body expressed as a % of total body weight (applicable for ages 18-99). Body water levels naturally fluctuate through out the day. Bodies tend to be dehydrated after a long night sleep and there are difference in fluid distribution between parts of the day. Body water % should act as a guide and should not be used as an absolute. It is meant to be used to track long-term changes in the total body water % and maintain a consistent, healthy body water %.

The average TBW% ranges for a healthy person are: 45 to 60% for females and 50 to 65% for males

Note: Total body water % will tend to decrease as the percentage of body fat increases. A person with a high % of body fat may fall below the average body water %. As you lose body fat, the total body water % should gradually move toward the average range.

Tanita Body Fat Health Range Indicator

Body Fat % Measurement

Body Fat Percentage is the proportion of fat to the total body weight (applicable for ages 7-99). Following body fat % measurement, a black bar will flash along the bottom of the display, identifying where the measurement falls within the Healthy Range Indicator.

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 13.9 x 2.7 x 13.8 inches; 6.08 Pounds
  • Item model number ‏ : ‎ BF 679W
  • Batteries ‏ : ‎ 4 AA batteries required.
  • Date First Available ‏ : ‎ October 2, 2001
  • Manufacturer ‏ : ‎ Tanita
  • ASIN ‏ : ‎ B0009V1YPK
  • Customer Reviews:
    4.4 4.4 out of 5 stars 1,366 ratings

Important information

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Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

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Customer reviews

4.4 out of 5 stars
4.4 out of 5
1,366 global ratings

Customers say

Customers like the health and wellness features of the scale. They say it helps them to see their progress and keep on track of their body. They also appreciate the value for money, saying it's appropriate for the cost. Customers find the scale easy to use and program. They appreciate the performance, saying that it works well and produces consistent results. Customers also appreciate accuracy. However, some customers disagree on readability, body fat level, and quality.

AI-generated from the text of customer reviews

248 customers mention204 positive44 negative

Customers like the accuracy of the scale. They say it's the most accurate and repeatable digital scale they've used. They appreciate the consistency with respect to body fat measurements. They also say the scale holds its accuracy very well, and that it'll be good at measuring weight for all the time they're using it. Customers also say that the precision did not change over time, and it also tells them their body fat percentage and water intake percentage.

"...tried it out alongside three other different scales, and it appears fairly accurate. I wanted something basic that could also do BF%." Read more

"...worth of data, you will definitely see a trend and the data becomes very credible in representing how much fat vs lean mass you've gained or lost." Read more

"...This scale fit my needs as closely as possible. It's accurate, consistent on different surfaces, seems sturdy, and is unobtrusive in my bathroom...." Read more

"...That was a great, accurate scale and even though it wasn't a "smart scale" with wifi... it was not made of glass and felt safer so I went looking..." Read more

102 customers mention79 positive23 negative

Customers like the performance of the scale. For example, they mention it works well, produces very consistent results, and works flawlessly on the original batteries. Some say it's easy to set, use, and read. Overall, most are satisfied with the product's performance and say it meets their needs.

"This is a great scale. It produces very consistent results; always giving me the same reading (or +-0.2 lbs) when measuring back to back...." Read more

"...Still using my scale every day, and it's still working perfectly. I've changed the batteries once. Still highly recommend!" Read more

"...Will measure Lb, Kg or Stones. Works like a charm. 10 year warranty. If you are an athelete or a family, spend some more, but stay with Tanita...." Read more

"...I never give reviews, but I am not happy. What a waste of money." Read more

80 customers mention75 positive5 negative

Customers find the scale easy to use and program. They say it's much easier to calculate results than other stats and averages. They also appreciate the historical feature and programming feature. They mention that it'll save 2 people's information, and has a setting to use for guests.

"Pro: Easy to set up multiple male/female users and different weight scales, i.e. Lb and Kg. Tested accuracy on this one and the one it was replacing...." Read more

"...I think it’s easy to use but I could easily see this being a medium difficulty for the average user...." Read more

"...And has setting to use for guests.My DR...." Read more

"...It's easy to use, and stores personal information for two people and 'guests' [who can enter their information in on a third monitor]...." Read more

57 customers mention51 positive6 negative

Customers like the value of the scale. They say it's an appropriate accurate for its cost, and a good investment.

"...This is a lower price home use product which works for me." Read more

"...I ordered my own Tanita through Amazon at a very affordable price and immediately began benefitting by accurate weight calibration plus the..." Read more

"...The precision did not change over time. Good investment and the price through Amazon was better than other places." Read more

"...This is by far the best scale I've owned, and a great value!" Read more

32 customers mention32 positive0 negative

Customers like the health and wellness features of the scale. For example, they mention it helps them see their progress, provides the info they need, and keeps them on track of their body. They also appreciate the extra large readout and the fact that it keeps a record of their progress.

"...that it is an irreplaceable tool for maintaining proper weight and good health." Read more

"...So much faster! And with better features! If it lasts as long as the previous scale, I’ll be very pleased...." Read more

"...5 more bucks, BF679 remembers body stats, previous readings, displays fitness info with extra large readout. Use is simple...." Read more

"...It lets you log everything you eat and also keeps track of exercise, etc.A good scale is essential to weight management...." Read more

82 customers mention52 positive30 negative

Customers are mixed about the quality of the scale. Some mention it's very well constructed, built to last, and reliable, while others say it'll fail after a short life span and is not a professional unit.

"...to within +/- .1 or .2 lbs, my priorities were: that the materials be durable, that the scale be accurate and able to work on various surfaces..." Read more

"...However, it’s more flimsy than the old Tanita. It seems to work okay for now so we’ll see how long it lasts." Read more

"...The fact that it's metal and not made of glass is certainly a plus...." Read more

"...Also, this is a metal case scale, so no glass to break....old school quality...." Read more

50 customers mention32 positive18 negative

Customers are mixed about the body fat level of the scale. Some mention that it measures body water and fat, gives reading for body fat %, weight and body water %. They say it's a great way to measure your body fat and monitor it over time, while others say that the variability of the bodyfat percentage (within 5% points) seems to be an issue. They also say that there seems to been some bias in the fat percentages given based on sex, and that the electrode sensors only measure body fat from your lower body.

"...The fact that it tracks body fat and water is also a plus since it seems like the only scales that do that are "smart scales" made of glass...." Read more

"There seems to be some bias in the fat percentages given based on sex...." Read more

"...As for reading the display, numeric characters display well, but the BMI indicator (-, 0, +) is sometimes hard to see clearly for older eyes...." Read more

"...As for it's accurate determination of "body fat" and "water", I can't say, but feel these are a bit gimicry anyway...." Read more

34 customers mention13 positive21 negative

Customers are mixed about the readability of the scale. Some mention it's easy to set up and use, with clear readings. However, others say that it'll give you a different reading every time you get on it.

"...It just goes to multiple zeros and refuses to shut off...." Read more

"...I think it’s easy to read. Once you set up your personal settings you tap the one button and it will show you your previous values...." Read more

"...than I got 5 years ago in Japan, the quality may be so so and not very countable - But I was wrong. It's still good quality...." Read more

"...The body fat and water is WAY off. The numbers don't add up at all...." Read more

Works on carpet, woohoo! But with a (big) catch.
5 Stars
Works on carpet, woohoo! But with a (big) catch.
I loved my old Tanita body fat scale (TBF-621), but it finally gave up the ghost after 15+ years. I need to use it on carpet since my bathroom is too cramped for a scale. There are carpet feet on the old Tanita which elevate it enough to work great on low-pile carpet. I called Customer Support and was informed there are no carpet feet available for the new models, and moreover, the ones from my old scale (which are removable) won't fit. Based on this, I instead bought the EatSmart scale, since one article said it worked on carpet. Wrong. It wouldn't even turn on when stepped on -- it just sank into the carpet. I then bought a British scale (Salter) from amazon.co.uk which was advertised as having carpet feet. But it under-reported my weight by 40 lbs. Finally, after comparing the underside of my old model to pictures on Ebay of the BF-679w, I decided to take a chance on it. Sure enough -- despite Customer Support's claims -- the old carpet feet fit the new model perfectly. See attached images of the old scale (top and bottom), carpet foot, new scale (top and bottom), and the new scale with the carpet feet swapped in. As with the old Tanita scale, the measurements on carpet are just as accurate as on a hard surface. So happy to again have a working body-fat scale!The issue, of course, is that if you don't happen to have carpet feet from an old Tanita scale, I'm not sure how to get them for the new one. Perhaps a different Customer Service representative can be more helpful? Very annoying that Tanita will not provide them, given that they used to. Maybe they will reconsider if enough customers ask for them?
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Top reviews from the United States

redstickchick
5.0 out of 5 stars Good value, good brand
Reviewed in the United States on January 20, 2024
Verified Purchase
My parents had one of these exact scales growing up, and when my smart scale died, I read into them and gave it a try. It doesn't do all the extra special things, but it works. I have tried it out alongside three other different scales, and it appears fairly accurate. I wanted something basic that could also do BF%.
2 people found this helpful
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max
5.0 out of 5 stars Great scale (IF you know how to properly use a scale!)
Reviewed in the United States on December 17, 2010
Verified Purchase
This is a great scale. It produces very consistent results; always giving me the same reading (or +-0.2 lbs) when measuring back to back. The reviewers who say it's inaccurate probably do not know how to use a scale properly. If your weight changes several pounds from one reading to another, you most likely either moved the scale or are standing differently on it. Also, no impedance analysis scale will give you an accurate reading of your body fat. It greatly depends on your hydration level, time of day of the measurement and your body composition. This means there are two things you need to realize to use the body fat function properly:

1. the number displayed is just a guideline, it may be off by up to 10% depending on your unique body composition; what you need to track is CHANGE over time
2. you need to measure under the same circumstances each time for data to be accurate, since this is difficult to do, your best bet is to take frequent measurements (each day or week) and look at the trend over time

Here's how I successfully use this scale: I measure my weight and body fat every morning after my morning toilet, wearing the same clothes, standing the same way on the scale and never moving it around. My weight varies by at most 2 lbs from day to day (usually much less) and body fat at most +-1%. I then record my stats in an iPhone app that can be used to show and plot the data over time. If you look at some weeks or months worth of data, you will definitely see a trend and the data becomes very credible in representing how much fat vs lean mass you've gained or lost.
8 people found this helpful
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USCGRet
5.0 out of 5 stars Excellent multi-user and multi-readings
Reviewed in the United States on February 10, 2024
Verified Purchase
Pro: Easy to set up multiple male/female users and different weight scales, i.e. Lb and Kg. Tested accuracy on this one and the one it was replacing. Difference of .2 Lbs could be attributed to coffee and pastry before stepping on the scale.
Con: Scale itself is a bit heavy. If placed in a stationary location, this is not a problem. Display needs overhead lighting (ceiling or hand-held flashlight) to see clearly. Large letters and numbers but no back lighting on the scale. NOT a deal breaker, just a minor annoyance. Aloha.
2 people found this helpful
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materials_girl
4.0 out of 5 stars Solid, user friendly scale from a heavyweight in the industry
Reviewed in the United States on July 11, 2016
Verified Purchase
I'm happy with this purchase so far. After my old Tanita finally gave out (the LCD screen stopped working, ten+ years after owning it), I hoped to find a similar scale with reasonable BMI accuracy and a more precise weight measurement. (My previous scale measured in .5lb increments; I was aiming for .1 or .2lb increments)
I considered several scales, ultimately narrowing my search down to this and a newer scale by a company called Greater Goods. I chose this scale because even though it is not a new model and was ten dollars more than the Greater Goods scale, I was ultimately skeptical about buying from a relatively unproven brand whose products include scales and...um...coffee?? From past experience, I knew Tanita to be a quality scale from a manufacturer invested solely in the business of making scales, and I knew the life cycle to be much longer than many other manufacturers. It bodes well to me that this model is at least 12 years old and is still being manufactured and sold.
I don't need (or want) a scale that syncs with my other devices and I'm not an athlete, so aside from wanting a general sense of my BMI and accurate weight measurements to within +/- .1 or .2 lbs, my priorities were: that the materials be durable, that the scale be accurate and able to work on various surfaces (my floor is uneven and I have the unit placed on a mat), that it have some thickness to it and to NOT turn on automatically when stepping on it (I often use this for a boost in height in front of my mirror and I don't want to run out batteries unnecessarily), and that it not look horrible in my bathroom.
This scale fit my needs as closely as possible. It's accurate, consistent on different surfaces, seems sturdy, and is unobtrusive in my bathroom. However, I would have preferred the design of my previous Tanita scale, for two reasons. First, the surface of this scale is slightly convex, which means that when stepping on it, the scale feels like it will tip sideways or that I will roll my ankle. Second, the metal pads for the electric current are of an awkward shape and are placed a bit too far apart for my average-sized-female feet. Still, relative to my previous Tanita, I get the features I wanted and then some (water measurement and memory buttons for two users), so I'm glad that I made this choice and hope that this scale serves me at least as long and as well as my previous scale.
47 people found this helpful
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DG
5.0 out of 5 stars Accurate and reliable
Reviewed in the United States on December 30, 2022
Verified Purchase
I've always used Tanita scales dating back to my high school wrestling days (which requires athletes to be exactly on weight; if you are off by 0.1 of a pound you forfeit) due to its accuracy and consistency. This scale meets my expectations. It may vary by a half of a pound, but overall this is about as good as you can get for the price. I would definitely recommend this scale for anyone looking to monitor or lose (or even gain) weight. However, if you are a competitive athlete which requires you to make weight for your sport or martial art, just be aware that this scale may be off by a half of a pound, give or take.
5 people found this helpful
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Laurie D
1.0 out of 5 stars Not Accurate Readings
Reviewed in the United States on February 13, 2024
Verified Purchase
Beware this is not returnable, I missed that when buying it. The readings are inaccurate. I got this scale to track my fat loss. According to the scale, I have more fat now and that is after losing 17 lbs. I am 143 lbs, my BMI at the doctor's office is 26.5, this scale is 36.6. I started eating vegan 6 weeks ago, so I know my fat has not increased. And yes, my settings are correct. I never give reviews, but I am not happy. What a waste of money.
4 people found this helpful
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Top reviews from other countries

Richard Tang
5.0 out of 5 stars Very good, especially for its price
Reviewed in Canada on October 23, 2014
Verified Purchase
I've owned this scale for almost a year now and can say that so far, it's a great way to monitor your weight, as well as estimate your body fat percentage. As with all bioelectrical impedance analysis (BIA) based devices, the results are still calculated values and may not reflect true body fat percentage. The instructions manual gives some tips that will help give better, more accurate values.

The scale itself is pretty consistent. When measuring weight, body fat %, and body water % multiple times in a row, it gives the same set of results. The body fat % this scale gives is also very close in value to another scale that I've tried that was used in a university lab.
6 people found this helpful
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DKatG
5.0 out of 5 stars Would recommend.
Reviewed in Canada on March 9, 2016
Verified Purchase
Arrived very fast! This scale is what I have been looking for having dealt with the one at the gym with my personal trainer and needing something that looks at body fat as well as weight. Once a person is trained to understand body fat they would appreciate this scale. I find it's very accurate, again, comparing it to one at the gym, they give me the same results. Would recommend.
6 people found this helpful
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Viper6
5.0 out of 5 stars Awesome scale
Reviewed in Canada on September 16, 2019
Verified Purchase
Gretbscale and easy to use and understand
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Amazon Customer
4.0 out of 5 stars Body fat reading wan't very accurate. I have had ...
Reviewed in Canada on July 15, 2016
Verified Purchase
Body fat reading wan't very accurate. I have had a hydrostatic weighing measurement and this scale rated me about 5% more fat than actual. Could be that it doesn't work very well for people with an athletic build.
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Laurie
5.0 out of 5 stars A great scale and worth the price
Reviewed in Canada on July 25, 2016
Verified Purchase
My nutritionist recommended this scale and we love it.
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