I have a smartwatch, I like it just fine, but I kind of think that smartwatches are actually pretty bad at being a watch. I had a Casio G-Shock for about a decade that I wore nearly every day [1], and I never had to change the battery. My Garmin Instinct Crossover, which is considered to have very good battery life, has to be charged every two weeks, which despite that seeming like a long time, I manage to forget about it every time until the battery is dead.
[1] I have a few fancy wind-up watches I wear to formal occasions.
Sure, for new equipment or in a pinch (that becomes cumbersome) but even traveling, you know what equipment you have, charge rate and things needing to get charged from what connector type. So you purchase the variants that you need.