My 3 year old Series 4 dies before 8pm, if it's fully charged at 7am, and with absolutely no use except standby. Some are still using Series 0s (with light use)

My 3 year old Series 4 dies before 8pm, if it's fully charged at 7am, and with absolutely no use except standby. Some are still using Series 0s (with light use), but Apple Watches are disposable electronics by any reasonable definition, especially with battery replacements that cost as much as a new one.