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BodyMedia CORE Weight Management System

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  • Track your activity and calorie burn like the contestants on The Biggest Loser and endorsed by health and wellness expert Jillian Michaels
  • The BodyMedia system automatically tracks your calories around the clock helping you to lose weight and even improve your weight loss by 3X proven in group trials
  • Provides most accurate calorie burn measurement in market (data available on BodyMedia.com)
  • Compatible with BodyMedia Display device
  • Works with MyFitnessPal, Runkeeper, Sparkpeople and more
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Product Description

Product Description

The bodymedia fit core armband, small in stature but big in building a healthier lifestyle, is an enlightening fitness device. it gives you the tools to take off the pounds and get to the core of the issue when it comes to your fitness and weight loss plan. capturing over 5000 data points per minute using four sophisticated sensors, this seriously smart device tracks everything from calories burned, steps taken and levels of physical activity to sleep. bodymedia fit armbands give you the most accurate calorie burn in the market, and the technology used in the bodymedia system has been clinically proven to improve weight loss. you burn calories differently than anyone else, which is why cookie-cutter weight loss programs may not be working for you. the bodymedia fit system captures your individual metabolic profile. this personalized info helps you pinpoint what actions you need to take to reach your weight loss goals.

From the Manufacturer

Are you looking for that added edge in your weight loss program? Track your activity and calorie burn like the contestants on The Biggest Loser.

At a Glance:
  • As seen on NBC's The Biggest Loser
  • Wear the BodyMedia FIT Armband to measure calories burned, steps taken, activity levels and sleep quality
  • Log food using the online tool or mobile app
  • Import nutritional data from apps such as MyFitnessPal
  • Receive personalized feedback via the BodyMedia FIT coach
  • Upload your data to the online Activity Manager by connecting the device to your computer using the provided USB cable (subscription required after 3-month trial***)
BodyMedia CORE Armband - RidingBodyMedia CORE Armband - ReadingBodyMedia CORE Armband - Running

The BodyMedia CORE Armband captures 5,000+ data points per minute, automatically tracking calories burned during your daily activities.

BodyMedia CORE Armband

The BodyMedia CORE Armband is the most accurate device in the market for measuring calorie burn*. No other consumer body monitoring device can capture calorie burn with greater than 90 percent accuracy, a fact that has been clinically validated when compared to the gold standard in calorie measurement**. The BodyMedia FIT Armband automatically and accurately gives you round the clock info on calories burned, activity levels, steps taken and sleep quality. The CORE Armband displays your data on your computer after connecting it with a USB cord and can also be used in conjunction with the BodyMedia FIT Display device.

BodyMedia's technology is also featured on The Biggest Loser in Season 14, which features one of America's toughest trainer, Jillian Michaels. All contestants are wearing BodyMedia FIT Armbands to provide them with detailed and accurate information to help achieve their weight loss goals.

*Data on file.
**British Journal of Sports Medicine, July 2010.
***Subscription required. The CORE Armband does not display information on its own, but rather works in conjunction with the online Activity Manager. Package includes a free 3-month trial period subscription.

Accuracy is on the Arm

When you wear a BodyMedia FIT Armband directly on your arm, it monitors calories burned, exercise intensity, steps taken and sleep quality. Other devices clip to your shirt or belt loop so they can only record simple data (steps) from when you move. Why is that important? BodyMedia FIT Armbands recognize that jogging up 3 flights of stairs is not the same as walking down 3 flights of stairs. You're doing more work and burning more calories jogging up those stairs.

If you want to accurately monitor what's going on inside your body, you need a system that is in touch with you day and night. That's why BodyMedia FIT Armbands are worn directly on your arm. Its patented sensors detect skin temperature, sweat, the rate of heat leaving your body and motion. It knows what you're doing, when you're doing it and even the intensity of your effort. 

Online Activity Manager

Our online Activity Manager allows you to upload data to our server through your computer. The software analyzes the data and presents the information in an easy-to-understand format so your progress can be tracked. The online Activity Manager allows you to enter body metrics (height, weight, age, gender), log food, gives you feedback, and guides you to their goals with a running report on the progress you've made--all while tracking your personal bests.

Look for BodyMedia on The Biggest Loser

The online Activity Manager allows you to upload LINK Armband data to our server through your computer. View larger.

FIT coach

The Activity Manager also features FIT coach. The software analyzes the millions of data points gathered from your Armband and you are given individual feedback suggestions such as eating something different, adjusting activity levels or focusing on getting more sleep. All of the feedback you receive is based on your actual data.

BodyMedia FIT App

After syncing the CORE Armband through the computer, you can see your latest synced data through the free BodyMedia smartphone app. Additionally, you can log your foods using the app.

Apps that work with the Armband
  • Withings - Never log your weight manually again by connecting your Withings Scale account to your BodyMedia Activity Manager to have your weight entries sent automatically.
  • MyFitnessPal - Database of 2 million foods to make logging meals a snap. MyFitnessPal also offers a free barcode scanner and an online community to diet with your friends.
  • Runkeeper - Turns your smartphone into a personal trainer in your pocket.
What's in the Box

BodyMedia CORE Armband, medium size strap, USB cable, manual and quick start guide.

Product Details

  • Product Dimensions: 1 x 3 x 2 inches ; 4 ounces
  • Shipping Weight: 7.2 ounces
  • Shipping: This item can only be shipped to the 48 contiguous states. We regret it cannot be shipped to APO/FPO, Hawaii, Alaska, or Puerto Rico.
  • Origin: USA
  • ASIN: B0052KONSI
  • UPC: 898363002225
  • Item model number: 100776
  • Average Customer Review: 3.5 out of 5 stars  See all reviews (152 customer reviews)
  • Amazon Best Sellers Rank: #92,499 in Health & Personal Care (See Top 100 in Health & Personal Care)
  • Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

The first one stopped syncing after a month.
Emily B.
I was guessing at calories and with this I KNOW how many I can eat in a day without exceeding the amount I burn.
Jana Taylor
Product may work but not really worth buying a subscription.
Anne L

Most Helpful Customer Reviews

650 of 659 people found the following review helpful By L. Kirk TOP 1000 REVIEWER on February 19, 2012
Vine Customer Review of Free Product ( What's this? )
The BodyMedia Fit Core armband is a product that elicits mixed feelings in me. I have used the device daily for 3 weeks, alongside a Fitbit Ultra activity monitor. I don't think it is necessary to have 2 competitive products side-by-side to do a useful review, but these 2 products side-by-side brought the products' differences into sharp focus as I used both. At a very minimum, a reviewer should actually use a product before reviewing it.

In terms of accuracy, I believe both products have advantages. The BodyMedia Core armband, in my opinion, seems to provide more accurate data on calorie burn, because it is using galvanic skin response and temperature data to calculate it. On the other hand, Fitbit Ultra was usually very close in its calorie calculations that are based on activity level (as measured by accelerometer) and duration. I believe both products accurately measure steps (both are accelerometer based). Sleep data was also pretty similar between the 2 devices. Fitbit Ultra also measures floors via its built-in altimeter, which the Core armband does not. Advantage to Fitbit there. I like the wireless syncing of the Fitbit vs. the cable hookup of the Core armband. Advantage to Fitbit there too.

Here are some specific hits and misses with the Core armband:


Small and reasonably unobtrusive: The medium-size armband was just small enough for me (I'm small-framed and about 120 lbs). I kept the device on for the recommended 23 hours per day. Most short sleeved shirts covered the armband, unless I was stretching or the shirt had very short sleeves. The profile of the device is quite narrow, so it doesn't bulge beneath sleeves noticeably.
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247 of 261 people found the following review helpful By M.S. on January 7, 2012
Verified Purchase
Before I bought this product, I read all the reviews on Amazon and had a few concerns. I bought it anyway and have been nothing but happy. My concerns were as follows:
1) There were some lousy reviews about customer service. I have had no problems whatsoever. I have addressed a question to customer service twice and received timely responses and effective fixes both times. I think it's possible that they took the feedback to heart and have improved.
2) There was at least one review that criticized the velcro on the strap; the instructions are very specific that you should use the velcro to set the initial size but, from then on, just use the elastic to pull it down your arm and off. It works, it's reasonable, and there is no wear and tear on the velcro.
3) There were some comments about accuracy; honestly, these mostly made me laugh. Yes, the Bodymedia product shows that I burn fewer calories on the elliptical than the elliptical says. It's not the Bodymedia device that is incorrect; those machines are notoriously incorrect and there has been no testing on them. There is no doubt in my mind which one to believe.

My observations:
1) Wearing the armband has given me a much better idea of what activities burn more calories--it's not always what you think. I had been choosing the elliptical over an exercise DVD I have based on my perceived calorie burn (and not losing weight when I thought I should). Now, I know that the DVD gives me a much more effective workout and the weight is coming off.
2) It is motivational. I like to see the numbers go up. I like to beat my personal best. Maybe I should take the stairs. Maybe I'll get up from my desk once and hour and walk around the office.
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57 of 66 people found the following review helpful By Gaz Rendar on April 19, 2012
Vine Customer Review of Free Product ( What's this? )
The BodyMedia Fit CORE would be a weight loss tool that I could recommend, if we lived in a vacuum and there weren't competitive products in the market.

I'll begin by reviewing the device itself. The unit is composed of a small, white plastic measurement center that easily pops in and out of a plastic shell connected to a soft Velcro armband. The white measurement part has a light that flashes green or orange/red and has a micro-USB port that is hidden when attached to the plastic armband shell. The back of the measurement center has two oblong metal plates, each with one pea-sized bump and ten tiny, spiky bumps. Once the white piece is loaded in the armband, it is meant to be fastened to the upper, outside part of your non-dominant arm. And this is where the fun begins...

The CORE device should be wrapped somewhat tightly around your arm, but you should still be able to slide a finger or two between your arm and the band. Finding the right amount of tightness is key. Once the metal plates are up against your arm, the CORE will calibrate itself and chirp after a couple minutes, letting you know that the device is now recording your measurements. If the contact between your arm and the metal plates is too loose, the device will beep and stop recording data. Too tight, and it'll hurt your arm. It's an annoying game that you'll constantly play all day long. I would forget about the device for several hours at a time, but then it might get sweaty or itchy and I would fuss with it. The biggest downfall of the device is trying to wear it under a long-sleeve shirt. Since my button-down shirts have moderately tight sleeves, the CORE is constantly being pulled down my arm during the day due to the friction between the sleeve and the armband.
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Most Recent Customer Reviews

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