Nike+ and Treadmill

I recently got the Nike+ system that logs your running. Well I used to just use what the treadmill said. Unfortunately the same routine on the Nike+ system says I only burn half the calories. Which is correct?? I don't understand what is wrong. on the Nike+ system you input weight so does your weight affect calories burnt that much??

I know it sucks... but weight totally effects how many calories you burn.  It's like carry weights while you workout! Ellipticals and treadmills are made by companies, who like food companies like to portray a "version" of the truth to consumers.  While juice companies give the nutritional info for "1 serving" which is actually only half the bottle of juice, so consumers think they're eating less than they are, cardio machine companies arethe same.

Most machines give out calorie reads for the "average person"... meaning an average man... probably a man weighing 170 lbs.  Trust your Nike+.

I just got the Nike+ and it seems pretty accurate. Do you put your weight in the treadmill? It sometimes is configured to a 150 pound person if you don't change it.

Nike+ counts the steps you take and the amount of steps you take at a time, so it is very accurate. Sorry that it's less than you thought :(

Did you calibrate the Nike+ to your stride?  That also makes a big difference.  I calibrated it to my stride and it was very close to what I normally do on the treadmill whe I put in my current weigth.  Did you input your weight into the treadmill? 

Is there any way to use the Nike plus system without buying the gym shoes? 

double post, sorry

yes, you can buy a little pouch doodad that ties to your shoelace. Or just use one of those shoelace doodads that holds a key for you. BUT you will definetly need to calibrate it. (which is easy to do) and if you change shoes you'll need to recalibrate again. Also you'll need to remember to always wear your ipod on the same side of your body.