MapMyFitness vs. Polar HRM calories

fittocycle

Which would be more accurate? When I ride outside, I wear my Polar HRM to see my heart rate but also use the MapMyFitness app to calculate mileage. I've noticed that my HRM can show I've burned around 100-200 calories more than the app. I do a lot of hills when I ride and I'm not sure the MapMyFitness app takes the elevation into account.
Which do you use or find most accurate?
Thanks so much!

pinkshiningstar

I'd go with the HRM. I always always always use my HRM burn amounts over Map My Walk, RunKeeper, MFP, Fitbit, the machine I'm using. Name it. HRM comes first

fittocycle

Thank you! That's pretty much what I thought as well!

zenhiker2014

I agree. In fact the whole reason I bought an HRM was because Map My Fitness thought fast was hard (more calories) and slow was lazy (fewer calories). That's only true on a flat bike ride. Now I sync my HRM to Digifit and get much better results.

fittocycle

Thanks so much! I'll have to look into Digifit!