is the fibit cals burned accurate

tattoobabe

i worked out on my treadmill today....had my fitbit on...afterwards i check the calorie burn on the treadmill it read 611 calories burned...i checked my fitbit it was the same exact number... That has never happened i would always have a different number on my fitbit normally a higher number than what the machine says i burned. Should i now disregard the calories the treadmill says i burned and go strictly with the fitbit?