The US Food and Drug Administration (FDA), the most authoritative health organization in the world, issued a guidance document on equipment supervision, which listed the popular sports bracelet as a low-risk device, and the FDA would not strictly supervise the product. For the technology industry, this policy of FDA has also created a more relaxed policy space for the development of wearable devices. Otherwise, according to the past, the process of health care products supervision and compliance will consume a lot of time and energy. According to the definition of FDA, low-risk equipment is not "aggressive" to human health, does not involve laser and electromagnetic radiation, and will not bring new use and biological adaptability problems.
According to the test, the radiation output power of Bluetooth products is only 1 MW, which is one millionth of that of microwave ovens and one thousandth of that of mobile phones. And only a small part of these outputs are absorbed by the human body. Bluetooth's radiation to human body is greener and safer than answering the phone directly and trying traditional wired headphones, so children and pregnant women can use it with confidence. Simply put, the radiation value of Bluetooth headset is only a few tenths of that of mobile phone, which is almost negligible. It belongs to radiation inspection-free products and is a green and environmentally friendly way to use mobile phones. If it is a bracelet with GPS, the radiation may be greater. It is not recommended for pregnant women to wear electronic products such as bracelets just in case.