![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_Ryan-Hall.png)
Hands-on: Fitbit's new Flex 2 and Charge 2 Activity Trackers, plus Blaze & Alta updates | DC Rainmaker
Dean Karnazes - Wow! The new #fitbitcharge2 has a Cardio Fitness Level tool that estimates your VO2 max. Time to start sprinting! #teamfitbit #fitbit #findyourfit Fitbit | Facebook
![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/DSC_8511.jpg)
Hands-on: Fitbit's new Flex 2 and Charge 2 Activity Trackers, plus Blaze & Alta updates | DC Rainmaker
![oh man. i feel SO good about myself right now. nothing like being 45 and seeing that VO2 max : r/fitbit oh man. i feel SO good about myself right now. nothing like being 45 and seeing that VO2 max : r/fitbit](https://external-preview.redd.it/FBYKZGDEOgo_2BN59DTn5uvS-bqDh9Yo6PPNbT9gwVg.jpg?auto=webp&s=97a7d747afde23ae7c328a0c90fffd6b6327cba5)