Fitbit is a very small device that motivates you to exercise and eat healthier to lead a healthy life. It is wireless, rechargeable and you can hang it easily wherever you want. Fitbit can track information about your activities for example, calories burned and steps taken etc. The collected information is wirelessly uploaded to Fitbit website where the person who is wearing this device can see the data and track his/her progress report. Person can also share data with friends, family and colleagues for healthy competition. Fitbit makes it easy to achieve healthy life.
Designer : Fitbit
all this does is save you some math so i don't think it would do that well.
Why don't you give the address where you can get some of these products????.
@Terri, you can check out their website : http://www.fitbit.com/
that's just creepy