Fitbit is a brand of wearable fitness trackers and smartwatches designed to monitor various health and fitness metrics. These devices typically track heart rate, heart rate variability (HRV), sleep patterns, activity levels (steps, distance), and sometimes skin temperature and blood oxygen. Fitbit devices aim to provide users with insights into their daily activity and overall well-being.
So I have my um this is my Fitbit. This is my Apple Watch.
""Dr. Michael Snyder listed Fitbit as one of the multiple wearable sensors he wears daily. He mentioned that it measures heart rate and heart rate variability, which he considers reasonably accurate and important for health monitoring, especially for tracking changes when one is ill."