It will inflate your calorie range even when accurate because Spark will double count. Spark awards you calories for your BMR + light activity and Fitbit does the same so Spark will think you're burning more calories than you are when you sync. But Spark won't affect your calorie range/burn on Fitbit.
I would set up your food plan with Fitbit and figure out how many calories you need to eat to achieve your goal weekly weight loss based on your total calorie burn and just eat in that range regardless of what Spark gives you for a calorie range. You can still log food here and it will sync over to your Fitbit account but you're going to be using your Fitbit to determine how many calories you should eat and how many calories you're burning.
Edited by: JENNILACEY at: 1/17/2014 (11:30)
Take your focus off the Marshmallow. www.leangains.com/2010/01/marshmallo
"Toning" is marketing muscles to women who are afraid if they pick up a barbell, they'll leave the gym looking like She-Hulk. It doesn't happen, what does happen is you get results. Lifting Barbie weights does nothing but waste time.
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