Sleep (U.S.) - What happens if I use my device and an activity tracker to monitor my sleep?
Your sleep data can be collected by your Sleep or your watch if you wear it during the night. When your sleep is tracked by both Sleep and an activity tracker, your Sleep data will be available in the Timeline of the Health Mate app.
Note that you can still check the sleep data measured by your activity tracker in the Sleep night view under the Sleep Heart rate and Snoring sections.