Yeah I went through 3 Charges in a year. Lower quality than the cheapest no-name electronics I've ever had, but at a price premium. It's like they were manufactured to be disposable.
Very similar experience here, I went through 2 Charge HRs in about a year. I'm on my third now, but I purchased this one new on eBay for $50 iirc (after the Charge 3 was released).
Every Fitbit I've had has felt disposable, and I've been using their products since 2013.