Bodymedia assumes that you are burning what you say you are (and you can see and adjust for that based on your armband's readings). Then it can tell you a calorie range based on how much you plan (theoretically) on losing each week (i.e., minus 500 calories per day for each pound planned on losing a week). That burned amount can be a lot or a little depending on your exercise and how active your general lifestyle is (big difference between desk job followed by being a couch potato once you get home versus a manual laborer working overtime).
Sparkpeople assumes you are a sedentary type person and only counts extra burn based on what you claim per week for exercise.
So if you have an active job or life but only count your formal exercise for the extra burn, sparkpeople will still only show a calorie range as if you barely move all day. It would be nice if sparkpeople allowed for selecting a lifestyle multiplier. I assume they don't because people may assume they are more active at their jobs and general life than they really are. Either way, that is probably why you are seeing the difference.
For fun, you can adjust the bodymedia numbers to sparkpeople's calorie range and see what bodymedia's daily burn target is then.
current weight: 208.0
Fitness Minutes: (103,515) Posts: 6,591 4/15/12 10:57 A
Make sure you have everything entered correctly here at SP. I add in an extra 200 calories a day of activity here (not counting actual exercise), because if I go strictly based on SP's BMR then my calories burned each day is several hundred calories off on a typical day. By adding in that extra 200 calories burned I get a more realistic calorie range for input. Right now, my Body Media recommendation is right in the middle of my SP recommendation, so I feel like they're basically in agreement.
Diagnosed with breast cancer on 8/19/14; working on a healthy lifestyle every day!
current weight: -0.2 under
Fitness Minutes: (13,830) Posts: 394 4/15/12 8:56 A
SparkPeople, SparkCoach, SparkPages, SparkPoints, SparkDiet, SparkAmerica, SparkRecipes, DailySpark, and other marks are trademarks of SparkPeople, Inc. All Rights Reserved.
SPARKPEOPLE is a registered trademark of SparkPeople, Inc. in the United States, European Union, Canada, and Australia. All rights reserved.