Is wearing a smart watch Bluetooth harmful to the human body?

There is no harm. After more than a decade of research and survey, the World Health Organization has not found that Bluetooth signals can have any impact on humans. Smart bracelets radiate to the body, but goods officially sold are strictly controlled by national standards before they are allowed to be sold. All harmful substances standards are controlled within a safe range and can be worn every day.

Because devices such as smart bracelets are directly connected to mobile phones through Bluetooth, the radiation is very small, which basically does not cause serious radiation problems. Wearable devices such as smart bracelets themselves have less radiation and are worn on their arms, so they are relatively safer.