Charge 3 showing "Tracker Not Found" error message

[SivaSPosts]

Hello, my Charge 3 been working fine 4 days, but all of a sudden it was unable to sync and showed an error as Tracker Not Found. I had to do a "New Device / Replace Your Tracker" to get it back to work again. Why will this happen? 

Thanks,

-Siva

Moderator edit: updated subject for clarity

[SherriZA]

Fitbit did replace the device as it stopped working and stopped responding. This was my 4th charge 3 in 11 months. I too am very concerned as to what I'll do should this replacement also just stop functioning in 5 months (since that seems to be the magic number). These devices aren't cheap and I can't afford to replace every year. 

[Candece]

My product ultimately failed. I had to return it to Amazon warranty sector.
I had purchased a warranty when I bought it because I thought the 1 yr
warranty by the company for $170 product was low. I am glad I did.