I've been messing around with sleep tracking using the Misfit Vapor X Android smartwatch and the Sleep As Android app. The app does use heart rate tracking to evaluate deep sleep versus light and...
I've been messing around with sleep tracking using the Misfit Vapor X Android smartwatch and the Sleep As Android app. The app does use heart rate tracking to evaluate deep sleep versus light and REM, and I've found the results do seem to correlate with how I feel the next day.
I've been messing around with sleep tracking using the Misfit Vapor X Android smartwatch and the Sleep As Android app. The app does use heart rate tracking to evaluate deep sleep versus light and REM, and I've found the results do seem to correlate with how I feel the next day.