![How accurate is the cardio fitness? I've improved from the red line to where it shows now. : r/fitbit How accurate is the cardio fitness? I've improved from the red line to where it shows now. : r/fitbit](https://i.redd.it/txwdsckeccj21.jpg)
How accurate is the cardio fitness? I've improved from the red line to where it shows now. : r/fitbit
![Has anyone seen their Cardio Fitness Heart Rate improve while using the Fitbit? Or has anyone worked to improve it and seen results? (I have attached a picture for an example/clarity) : Has anyone seen their Cardio Fitness Heart Rate improve while using the Fitbit? Or has anyone worked to improve it and seen results? (I have attached a picture for an example/clarity) :](https://i.redd.it/tk1333va2ab11.jpg)
Has anyone seen their Cardio Fitness Heart Rate improve while using the Fitbit? Or has anyone worked to improve it and seen results? (I have attached a picture for an example/clarity) :
![Cardio fitness score reset a week ago and I was on the highlighted area before, I run every other day and it's never been a problem before... what should i do? : Cardio fitness score reset a week ago and I was on the highlighted area before, I run every other day and it's never been a problem before... what should i do? :](https://preview.redd.it/osu3kci72i851.jpg?auto=webp&s=515b057167b4944351aa69db2008889e55136890)