I had a Fitbit charge that broke so I got the Fitbit inspire. I have done similar workouts using the two and have found that although my information in the app has remained the same the two Fitbit’s are not close at all when comparing the workouts.
Example. On the treadmill I used a 55 minute workout I recorded on the charge and did the same with the inspire to gauge how close the numbers were. Exercise equipment I know will 90% of the time be very off when compared to heart rate monitors, calorie counters Fitbit’s, etc., but I have this this a few times with similar results. As an example:
Treadmill – 55 minutes, 2.85 miles, 413 calories
Charge - 55 minutes, 2.41 miles, 440 calories
Inspire – 55 minutes, 1.98 miles, 496 calories
I wear the inspire the same way, same hand, info o the app again has not changed. Anyone know why the numbers are so off? Is the inspire likely over counting or was the charge under counting? Not too sure what the difference in the models are.