![]() This is not surprising, since typically brain waves are needed to properly measure this. “Some devices are currently performing well for total sleep time and sleep efficiency, but the community at large seems to still struggle with sleep staging (deep, REM, light). “The biggest takeaway is that not all consumer devices are created equal, and for the end user to take care in selecting the technology to suit their application based on the data,” Hagen says in a university release. Moreover, not a single one of the eight tested devices could accurately differentiate between and measure various sleep stages (REM or deep sleep) to the level that such readings would be helpful in comparison to an electroencephalogram (EEG). All other tested devices overestimated or underestimated at least one of those three metrics. In terms of measuring total time asleep, total wake time, and sleep efficiency, the study finds Fitbit and Oura are the top choices. ![]() He and his team set out to test the efficiency of eight commercially available sleep trackers. Joshua Hagen, director of the Human Performance Innovation Center at the WVU Rockefeller Neuroscience Institute, says he was motivated to conduct this research because there hadn’t been a proper third-party assessment of sleep tracker quality across various brands. However, researchers from West Virginia University report some of these devices are much better at their job than others. ![]() Wearable sleep tracking devices, such as the Apple Watch or Fitbit, are quite common nowadays. Of course, just like so many other areas of life, technology has changed all that. Just a few decades ago, it would have been impossible to track your sleep quality on a minute-by-minute basis. ![]()
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