Does FitBit describe how the BMI is determined? Does it work off actual impedance? Or is it just a thumbnail guess based on height/weight ratios?
1595190
BMI is always a height/weight ratio, That's all it is which is why it is inaccurate for weight lifters. Body fat percentage is determined by bioimpedance.
1595191
From the Fitbit website The scale measures body mass using bioimpedance analysis. ITO electrodes form a pattern on the top of scale, and send a small, safe signal through the body to measure impedance. https://www.fitbit.com/aria/specs
1595192
From the Fitbit websiteThe scale measures body mass using bioimpedance analysis. ITO electrodes form a pattern on the top of scale, and send a small, safe signal through the body to measure impedance.https://www.fitbit.com/aria/specs
129693
Hit SET to go into profile mode... you select the PROFILE NUMBER (1-8) with up-down keys, Hit SET... then Male/Female using up-down keys, hit SET...then HEIGHT I think...hit SET... step onto the scale BAREFOOT and hard floor/NO RUG... the scale reads your weight... then STAY ON it... it goes through your BMI, Water Weight %, Muscle Weight %, and your BONE WEIGHT... do the same drill for any other profiles you wish to store.......(MAKE SURE YOU PULL THE BATTERY SHIELD TAB OUT!! hahaha) GOOD LUCK
60760
Hey = so I found the fitbit a little more responsive during exercise. But the UP 24 will continue to update (just not as quite as real time). With running - depending on your speed the Up24 should recognize your your activity as running. I have to manually put in when I am hiking though.
1640806
Yes, you add your weight, height, age, and if you know it other factors such as BP and body fat percents. These numbers are used to give an accurate account of what you are burning for your size. One thing you need to do is update it as your weight changes. I find it to be quite good at figuring my daily burn and my calorie needs.
2195102
I think that is how it actually measures calories loss is by heart rate, but since it downloads the data, it doesn't show you anything real time. The Bluetooth version might, but I'm not sure. Its an awesome unit ... love it.
389264
I have a FitBit Flex and I have to make sure that I move my arms for the steps to count. So make sure you're swinging your arms, like you're walking. Not sure if all FitBits are like this, but my Flex is picky if I'm not swinging my arms.
2175702
The camera reads a code the scale generates. You can input manually as well. At first I thought it was hokey, but in all honesty it's worked well. I think, given the nature of bluetooth, this is a simple, but more utilitarian option. I can attest to having done this about 30 days in a row. Guess what? Monitoring your weight daily keeps you honest with yourself. This in itself will probably help you lose weight, if that's what you're looking for.
456674
I read that the method these scales use to measure % body fat (bioelectrical impedance analysis) is highly inaccurate. The best you can hope for is spotting trends over time (i.e. does % body fat decrease over a longer time period). The fact that you have to give the machine all kinds of parameters (height, age, fitness level etc) clearly shows that the machine is not measuring your body fat, but is using a mathematical algorithm to come up with an educated 'guess' what your % body fat might be.
805350
I have NO problems with my tracker as long as it is positioned correctly. I wear mine on the top of my shoe and it seems to be giving me great results. I have not used any other tracking device such as fitbit etc. so I really have nothing to compare it with. But for the price, I am very happy with it. I liked it so much that after I lost my first one, I ordered the second one. They are very addictive. :) Hope this helps. For more comments, you can go directly to SparkPeople.com to check it out.
1832442
Fitbit measures your rate of steps as "lightly active, fairly active and very active." It counts the amount of steps in a period of time and rates those minutes accordingly. So it definitely knows the difference between strolling and running.
502324
Yes. It is very actuate. It measures weight, BMI and water weight also. Weight yourself 1st thing in the morning before you eat or drink anything for best results. Just enter your age, height, female/male etc. Very easy to use and to store info automatically.
499175
Mine does not give bmi at all. Only fat %. Muscle weight, bone density. I m larged frame and do not believe in bmi any how. Muscle has larger mass than fat!!!!!
1838562
Hi. The watch tracks your distance and strokes. You program your weight into the watch in setup, and the owners manual says that it uses this information to calculate calories burned based on distance and body weight.
498267
BMI is calculated/reported after your weight on the scale itself. The app only tracks weight and BMI, but you can always export or transmit the data to other apps that may calculate out water, bone & lean mass for you.
781897
Nope, it sure can't. It doesn't have much of the functionality of the FitBit either. This is just a barebones pedometer with flimsy screen and ability to upload step data. No pause.
1396897
No you do not. You can either use it as just a scale or create a new account with Fitbit and have it auto load your weight into your account for tracking purposes.If you are considering it, the Fitbit Flex is awesome!!!
1752550
No, it automatically turns on when you step on it to measure your weight and it turns off by itself in a few seconds after you step off of it. To use the BMI measurement, you must push a button first, then step on it.