Apple quickly pivoted it to a health tracking device. newer model have even medical grade ECG, blood oxygen level, fall and crash detection, etc. plus the usual activity tracking (steps, calories, workouts)
I think so, yeah. For example if I crash my motorbike it will ask if I'm OK and call emergency services, providing them with my location, name, next of kin, etc if I don't respond.
So far, I've hit the "I'm OK" button the few times that feature has activated, but one day I might not be so lucky.
Mostly though, I like being able to see the accurate time (without needing to adjust it occasionally), the weather forecast, my next calendar schedule, a "traffic is normal" message while getting ready for work in the morning*, and read notifications without taking my phone out of my pocket.
(* if there's a car accident on my commute, my watch tells me to leave for work early, and which route is best to avoid the worst of the traffic)
The newer watches also have better screens, faster processors, more RAM, etc etc... and also lithium batteries don't last forever. So I seriously doubt anyone is actually using an eight year old watch unless they've had the battery replaced at least a couple times. They're not really designed to be taken apart so the cost to replace the battery isn't much cheaper than just upgrading to the new/better model.
I'm never buying a smart watch again. I bought into the Moto360 hype back around this same period. The watch was slow as molasses and basically next to useless. The battery wouldn't last a full day either. You'd look down to tell the time, and it would be blank. So phone out of the pocket, which is what they are supposed to help prevent.
It was the watch that made me realize that I'd rather just have an actual watch. The battery completely gave out on it sometime in 2018, and it looked like a PITA to fix, so now I have this really attractive gold watch with a nice band that's completely useless. Won't be handing it down to the grandkids, that's for sure. I've got a nice real watch now, and they can have that.