![Fitbit unveils new smartwatch with ECG app, stress management features, skin temperature sensor and more | MobiHealthNews Fitbit unveils new smartwatch with ECG app, stress management features, skin temperature sensor and more | MobiHealthNews](https://www.mobihealthnews.com/sites/default/files/Fitbit_Sense_Hero_Lunar_White_Crop_Center.jpeg)
Fitbit unveils new smartwatch with ECG app, stress management features, skin temperature sensor and more | MobiHealthNews
![Fitbit says breathing rate, heart rate variability early indicators of Covid-19 | Technology News - The Indian Express Fitbit says breathing rate, heart rate variability early indicators of Covid-19 | Technology News - The Indian Express](https://images.indianexpress.com/2020/08/fitbit-1200.jpg)
Fitbit says breathing rate, heart rate variability early indicators of Covid-19 | Technology News - The Indian Express
![Fitbit study finds heart rate variability fluctuates by age, gender, time of day and activity level | MobiHealthNews Fitbit study finds heart rate variability fluctuates by age, gender, time of day and activity level | MobiHealthNews](https://www.mobihealthnews.com/sites/default/files/Fitbit_Versa_3_Lifestyle_Park_Jog_Pink_Clay_OTS_Connected_GPS_MH_0307.jpeg)
Fitbit study finds heart rate variability fluctuates by age, gender, time of day and activity level | MobiHealthNews
![Fitbit Charge 4 not reading HRV and BR for past two nights. Is anyone else experiencing this? : r/fitbit Fitbit Charge 4 not reading HRV and BR for past two nights. Is anyone else experiencing this? : r/fitbit](https://external-preview.redd.it/LZerJY77eiObgeLfk7AsAdKRmLu-jpdaUkZeaqUevF0.png?auto=webp&s=93800b33aa55a27f23637b98d908de0a074fd146)