![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
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Fitbit - Activity Tracker Charge 4 Impermeabile 5ATM Display Touch Wi-Fi / Bluetooth e GPS per Fitness con Pedometro e Cardiofrequenzimetro Taglia S / L Nero - ePrice
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Fitbit Charge 5 Fitness Band GPS cardiofrequenzimetro Bluetooth colore nero - Cellulari e smartphone SmartWatch & Activity Tracker - ClickForShop
![Fitbit Charge 4 ufficiale: costa 149 euro e può tracciare le zone di allenamento, cardio o brucia grassi | DDay.it Fitbit Charge 4 ufficiale: costa 149 euro e può tracciare le zone di allenamento, cardio o brucia grassi | DDay.it](https://cdn.dday.it/system/uploads/news/main_image/34792/main_FitBit_Cover.jpg)
Fitbit Charge 4 ufficiale: costa 149 euro e può tracciare le zone di allenamento, cardio o brucia grassi | DDay.it
![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)