When to replace Apple Watch because of battery health?

[swandy]

My Watch series 8 has the Maximum Capacity down to 85% and it seems like it is getting low battery levels quicker than it used to. Especially as I like to exercise with it even though the music is downloaded to the watch not streaming.
I am probably replacing it this year with a Series 10 but I read about lots of users keeping their AW for several years. I am considering trying every other year to replace it. Any thoughts?

 

[Jackbequickly]

Replace it when it is no longer serving the function you need and you have the money to replace it. You series 8 has served you well.

 

[the future]

Also, Apple will not replace the battery unless it is below 80%.