After two days test, i believe the smart sleep track is added in 12.10 release. although it is not perfect. Here are my two days test results. The first day, i slept early than my manual set sleeping time window, and i found it was correctly recorded next morning. And more surprising come in the second day test, i took a nap during the noon time. The sleep date was captured and record in my sleeping card. Although it covered the night sleeping data instead of adding them together. However it is showing perfectly in Google fit app. I use iOS and i shared my health data amount apps. I will keep test. Hope garmin will continue improve it. I also hope the nap data was not recorded by iOS or Google Fit and write back to garmin.
Currently three major issues : 1. Nap data will cover the night sleeping data. 2. Nap data not very accurate and has a big delay to appear in the sleeping card. 3. Nap data covers the night sleeping data and it therefore effects the body battery because system consider you only sleep a couple of hours.
