mine is doing the exact same thing, started with the high heart rate when i was sitting at my desk at work showing 150 plus and took it manually and was more than half of that so i googled that which was a known issue so i did the restart by plugging it in like they said, now that created the screen going bonkers non stop, did the hard reset many of times but this does not help at all. in fact when i plug it into the charger it automatically hard resets on its own after vibrating a bunch. so i did an online chat with Melissa from fitbit who was practically useless and i could tell she was not reading what i was telling her cause her response was the directions on how to do a hard reset. Ummmm hello i already told you i did all of that. she checked and i was just outside of my warranty as i bought it in november 2018 and it only covers it for 365 days. so she offered me 25% off of a new one. Like really this is a very well known bug with your product and im only days off of my warranty and this is my second product i have bought from you and your answer is to make me spend more money on a faulty product? not to mention i got a phone call at work and she disconnected the chat very fast on me.
not a happy camper i should of just turned the heart rate feature off cause the reboot screwed my entire fitbit up. now it keeps flipping screens and vibrating on my wrist which is super annoying. also no changing the clock didnt do squat
