Research published in Sleep Health magazine stated that Samsung Galaxy Watch4 sensors for SpO2 are comparable to real medical instruments when measuring OSA or obstructive sleep apnea. According to the study, the readings taken simultaneously with the wearable device and the traditional medical device were aligned.
The study was conducted by seven medical professionals, six of them affiliated with Samsung Electronics. It took place at the Samsung Medical Center which also paid for the research, so maybe we should take its results with a good dose of salt.
During the research, it was determined that the blood oxygen sensor on the back of the Galaxy Watch4 can provide a true insight into the user’s health and is compliant with FDA and ISO standards when the average error in the data is less than 4%.
The researchers found that the wearable sensor is a little more reliable than the standard medical instrument worn on the wrist because they collect oxygen data differently: the Samsung device relies on pulse oximetry (readings from the wrist through the skin) while the instruments Doctors rely on the CO-oximeter (oxygen readings through the skin).
Research on OSA is important because, according to the study, 38 percent of adults suffer from some sort of sleep disruption, including 50 percent of all adult males and 25 percent of all adult females.
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