![Hands-on: Fitbit's new Flex 2 and Charge 2 Activity Trackers, plus Blaze & Alta updates | DC Rainmaker Hands-on: Fitbit's new Flex 2 and Charge 2 Activity Trackers, plus Blaze & Alta updates | DC Rainmaker](https://media.dcrainmaker.com/images/2016/08/Fitbit-Charge-2_Fitbit-App_iOS_Cardio-Fitness_Sara-Hall.png)
Hands-on: Fitbit's new Flex 2 and Charge 2 Activity Trackers, plus Blaze & Alta updates | DC Rainmaker
![I finally got an exact cardio fitness score! I read recently how you need to GPS track a couple of 10min+ runs for a more specific score (I was at a range I finally got an exact cardio fitness score! I read recently how you need to GPS track a couple of 10min+ runs for a more specific score (I was at a range](https://preview.redd.it/kjbsnmai47361.jpg?auto=webp&s=1cca94036947b5bbab6b09ff6788ebd63d8d44d9)
I finally got an exact cardio fitness score! I read recently how you need to GPS track a couple of 10min+ runs for a more specific score (I was at a range
![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://preview.redd.it/txwdsckeccj21.jpg?auto=webp&s=6c9e96243c5f534a85769c12103a754f2295cf4d)
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://preview.redd.it/tk1333va2ab11.jpg?auto=webp&s=22e44b9313a7360d2e060f07ed9dada6ca4113c7)