![Amazon.com: Fitbit Charge 4 Special Edition Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking, Black/Granite Reflective, One Size (S &L Bands Included) : Sports & Outdoors Amazon.com: Fitbit Charge 4 Special Edition Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking, Black/Granite Reflective, One Size (S &L Bands Included) : Sports & Outdoors](https://m.media-amazon.com/images/S/aplus-media/vc/af787761-1a15-41f7-ba9a-f4ac9ff85fb5.__CR0,0,600,450_PT0_SX600_V1___.jpg)
Amazon.com: Fitbit Charge 4 Special Edition Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking, Black/Granite Reflective, One Size (S &L Bands Included) : Sports & Outdoors
![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
![Amazon.com: Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking, Black/Black, One Size (S &L Bands Included) : Sports & Outdoors Amazon.com: Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking, Black/Black, One Size (S &L Bands Included) : Sports & Outdoors](https://m.media-amazon.com/images/I/311ThQv0JoL._AC_SY1000_.jpg)
Amazon.com: Fitbit Charge 4 Fitness and Activity Tracker with Built-in GPS, Heart Rate, Sleep & Swim Tracking, Black/Black, One Size (S &L Bands Included) : Sports & Outdoors
![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)
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) : 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/i9hudo1etad61.jpg?auto=webp&s=69fb34ab605b13131d84ac8e84f916a4be8b89d4)