I don’t understand how you can say a smart watch isn’t, on top of all the smart features, also the best watch there is when it comes to keeping time. It keeps perfect time, always, even over DST changes, even when you change time zones. You never even have to set them!
Also your Apple Watch is defective if you have to charge it all night. I’m up to my third, I always wear it while I sleep, I only charge it when I’m getting ready for bed or getting ready in the morning, and the battery never runs out.