Real answer for me is I generally dislike ANY watch that's going to require me to charge it on a regular interval. For me that's a no go. I sleep with my watch and jewelry on pretty regularly. I take it off to shower, keep jewelry on in the shower. My gold bracelets almost never leave my wrist and my rings never do. I like to use things for at least a decade. Easiet way is to never take em off. I do have a rubber band Casio I switch to on occasion. Same goes for my shoes and clothes though. I wear them until the stitching is fading and ripping apart from so many washes. I wear shoes until the soles fall off. For me, things on my person, whether it be a watch, clothes, my gun or my knife, are ultimately tools. I buy tools that last and use them until they just don't work anymore and fix em up when they break down and keep going too. In short. Smart watches and apple watch seem very high time preference to me. A watch has a simple function. Tell time.