yeah, i've had a garmin and i've had an apple watch. both have their strong points, but the battery life of the apple watch was really just never an issue for me. it seems like it should be an obvious downsite, but it's pretty easy to get in the habit of charging it, and once it is habit its just really not an issue.
if anything, the garmin's battery life was a downside, because i wouldn't charge it daily, and then i'd go to start a bike ride and find it was at 10% battery.
Unless you're riding for 4-5 hours, 10% should still be more than enough to get through a workout though? And in my experience a 10 minute charge would have you north of 30%.
not in my experience. i had an edge 120 bike computer and a vivoactive watch, and the last 10% wasn't enough to get through anything. the 10% from 100 to 90% would be plenty, but the last 10% always drained really quick and charged slow.
if anything, the garmin's battery life was a downside, because i wouldn't charge it daily, and then i'd go to start a bike ride and find it was at 10% battery.