I have a similar situation. My Fitbit Ionic has been nothing but trouble ! For the first few months, I struggled to get music on it - the first reason I had got this, was to have onboard music, during the routines. I was so demotivated, even gave up on wearing it. To put songs, you had to have a certain version of Windows and even then it wasn't so easy.
I managed to get it working, Fitbit even introduced Spotify, but for that they needed a year long subscription. I already have Amazon music, why should I spend on another app?
The straps are so difficult to find.
Then they come up with a firmware upgrade and my email/phone stopped syncing. That was still fine, but I did a factory reset via the watch and not the 3 buttons and NOW THE WATCH WON'T POWER ON AT ALL.
I have owned this for 18 +months and it has been an absolute waste.