This really is quite ridiculous. I have NEVER had an issue with ANY of my fitbit devices until the Charge 3. I JUST got a replacement a few months ago because random weird lines appeared on the screen of my original Charge 3 ("dead pixels") and it wouldn't even do a hard reset (I hold the button and it vibrates twice and goes to the notifications screen but won't restart) so they sent me a replacement. Now the replacement's screen today went black. 1) I'm at work and I don't carry a charging cable around with me everywhere I go because I expect my fitbit product to WORK, 2) I tried to reset it by holding the button for 8 seconds and again, it buzzes twice and does nothing, no restart--I've tried resetting it even while plugged in (yes, the replacement I got won't reset either but I figured it wasn't that big of a deal as I don't often need to reset it).
This is the very last fitbit product I will be spending any money on. At this point a replacement for my replacement seems like more effort than it would be to go to a store and get another non-fitbit brand wearable health tracker--you know, I'd have to wait for at least a week to get the replacement device and in that time not be able to track my heart rate, exercise, steps, etc. which will impact my current diet/exercise plans with Noom since I don't take my phone everywhere with me so some steps won't be counted on my iPhone's pedometer.
It seems that the fitbit devices of the past that actually worked and didn't have every single possible "bug" that could exist are extinct. This is how market share is lost. Congrats.
