Dangerous Side Effects Reported From Popular Fitness Trackers Updated on October 13, 2019 By William Clement 4 Comments By William Clement 4 Comments truth cker October 6, 2018 ???? Reply kevinrocksman April 11, 2019 these batteries are tiny, i do not believe there would be enough amperage or voltage to cause any issue. I mean a 9v battery has a higher battery capacity than the fitbit has and u can stick that on your tounge and be ok Reply o k June 23, 2019 Bollucks. It's the electromagnetic radiation pulses, is it not? Obviously the watch transmits magic and so does the human body's electrical nerve impulses. Nothing going on there. Disclaimer: sarcasm maybe implied. Reply Carrot Cruncher July 19, 2019 Static you muppet Reply Leave a Reply Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Save my name, email, and website in this browser for the next time I comment.