Getting ridiculous calorie burns on my surge of 4-5k a day while doing barely anything to 6-8k with several hours of heavy exercise. One day it said 8000! That was with 25 miles of biking and 5 hours of weightlifting but still, that's way too high! 32yo, 6 foot 2 , 230lbs.
The calories burned during a walk are nuts too. Walked 21 miles one day and 7200 burned? Not a chance.