Personally, I've had two fitbits, bought mother-in-law a fitbit, and have another friend who also had one and all of ours broke for similar reasons listed as OP

Personally, I've had two fitbits, bought mother-in-law a fitbit, and have another friend who also had one and all of ours broke for similar reasons listed as OP, all in the second or third year of wearing it. Based on these experiences, I wholeheartedly agree that their hardware just doesn't last very long and is why I switched to an Apple Watch (just got one a couple weeks ago!)