Hidden Chemical Dangers Lurking in Smartwatch Bands
According to new research, fitness trackers may help individuals count their steps and monitor heart rates, but they could also expose users to potentially harmful chemicals.
Scientists have discovered that many popular smartwatch bands contain surprisingly high levels of a concerning chemical called perfluorohexanoic acid (PFHxA), which can be absorbed through the skin.
In a comprehensive study of 22 smartwatch bands from various brands and price ranges, researchers found that many bands marketed as containing “fluoroelastomer”—a type of synthetic rubber designed to resist sweat and skin oils—had significant levels of PFHxA, which can easily transfer to the skin.
This is particularly alarming given that an estimated 21% of Americans wear smartwatches or fitness trackers for over 11 hours a day, according to Environmental Science & Technology Letters.
