Question for Body Media Fit Users......

_Kitten_Kate

I have had my BMF Link for about 2 and half months. Today it claims I burned 2300 approx. cals... about 200+ less than most other days since I had gotten it
Yesterday I was less active and wore it less(only about an hour during workout) than today
(wore it for approx 4 hours of activity-workout and helping my sister move.)... but todays estimate was about 200 cals burned lower.

I get that its all an estimation... But why would it be such a big difference when I was more active wearing it today than yesterday.

Any thoughts or info you can share is appreciated.

Thanks.