Education and Communications Do smart watches give off radiation? Do smart watches give off radiation? Wearables use Bluetooth or WiFI technology, sometimes a combination of both, to connect wirelessly to your smartphone or computer. This means that like smartphones, these devices emit radiation and have to pass FCC standards to ensure their safety. Related Posts:Why won't my Alexa connect to my Bluetooth?How to block channels on smart TVs with step-by- step instructions.Does it matter what Bluetooth adapter you get?How can I install Bluetooth software in my laptop?