Runtastic vs. MFP Cardio Estimator- Calorie Burn
On my most recent walk/jog outing, the Runtastic app on my phone estimated I had traveled 2.1 miles at a pace of 3.8mph in 33 min. for total calorie burn of 416. MFP estimates the same time at 4.0 mph (the closest I could get) burning only 262 calories. That's a pretty big discrepancy. Any thoughts on which might be the…