Why Can Fitbit Track Sleeping?

The ability of Fitbit trackers to track sleep patterns is down to the fact that it’s fitted with sensors called accelerometers. They help detect the wearers’ motion along with the direction and speed of the motion. When the tracker detects that you haven’t moved in over an hour, the algorithm assumes that you are asleep. This is often supported by the kind of movements you make while you’re asleep such as rolling over. Your movements in the morning tell the tracker that you have woken up. This mechanism is not perfect and for this reason can falsely assume that you’re asleep after you have stayed for too long without moving. When this happens, simply delete the sleep record from your dashboard.

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