![Summary of the data flow during heart monitoring in the Fitbit Charge... | Download Scientific Diagram Summary of the data flow during heart monitoring in the Fitbit Charge... | Download Scientific Diagram](https://www.researchgate.net/publication/329981049/figure/fig1/AS:709014820245505@1546053714967/Summary-of-the-data-flow-during-heart-monitoring-in-the-Fitbit-Charge-HR2-and-the.png)
Summary of the data flow during heart monitoring in the Fitbit Charge... | Download Scientific Diagram
![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://i.redd.it/kjbsnmai47361.jpg)
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
![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-Level_Weight-Improvement.png)
Hands-on: Fitbit's new Flex 2 and Charge 2 Activity Trackers, plus Blaze & Alta updates | DC Rainmaker
![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)