Charge 2 sleep mode

broken image
broken image

The result? Data that empowers Fitbit users to take control of their sleep quality and allows Fitbit scientists to dig deeper into the health effects of sleep.

broken image

The launch of Sleep Stages was a huge step forward in sleep research-for Fitbit users and scientists.Īvailable on Fitbit Alta HR, Blaze, and Charge 2, Sleep Stages uses motion detection and heart rate variability to estimate the amount of time users spend awake and in light, deep, and REM sleep each night.