Fitbit Charge 6 - Low calories for workouts

[WesF88]

I’ve had my Fitbit charge 6 for 7 days now. When doing a cardio functional fitness class it’s registering between just over 200 cals only where other people in the class that are wearing other types of trackers are registering 600 to 700 cals? I’m quite fit and always put in a solid effort - when I used to where a fitness tracker that strapped to my chest I was registering 600 to 700 cals too

Am I doing something wrong with the Fitbit? 

Moderator Edit: Formatting.

[RiekoC]

Hello & welcome @WesF88 

The first thing to check is that your profile info in the Fitbit app is correct. To check:

• Tap on the You tab at the bottom of the Today page in the Fitbit app
• Tap on Edit profile on the You page
• Confirm your personal info is correct. If it's not, tap on Edit in the upper right and follow the prompts to correct the information. 

The second thing to check is what did your Charge 6 track as your heart rate during your workout. If it's not in the upper ranges, that is likely why you're not seeing a larger calorie value.