In fact, the sleep monitoring function of most activity trackers on the market is based on the principle of a wristwatch type body motion recorder. The body motion recorder uses an acceleration sensor to record the user’s state of motion during sleep to analyze their sleep status.
In simple terms, when the acceleration sensor detects that the user is not moving, it is judged that the user is asleep; if the user starts the activity, it is judged that the user is awake. Although the actual measurement situation is not so simple, but the acceleration sensor is really based on the user’s little movement to determine the depth of sleep, and this method can roughly record the user’s falling asleep and waking time.
Different intelligent bracelets at different prices have different levels of functionality and the measured sleep results are different. More intelligent devices, such as heart rate and blood oxygen monitoring functions, or call microphones to collect user buzz data, can help analyze the user’s sleep according to more data, and will naturally have a more accurate grasp of the user’s sleep status.
Fitness tracker sleep monitoring is in order to have a clearer understanding of their sleep status, which can be used as a reference for us to adjust our sleep and improve our sleep. Part of the functional fitness watch or band analysis of our sleep and awake state is in place.