Yeah, it kinda sucks how cloud reliant most smart watches are. Like other people in the thread mentioned I think stuff like the pine time, bangle js, etc are probably your best bet for cheaper ones.
There’s also asteroidOS which you can flash onto certain older smart watches. It’s what I’m currently using but there isn’t as much support for it so for more complicated data tracking would require setting up something like a raspberry pi to periodically fetch data over Bluetooth and process it yourself.
If you otherwise like lemmy I’d recommend dbzer0 or lemm.ee. Both are kinda large instances which ideally would be avoided, but both of them are also very fair with moderation and don’t defederate from many places, which means you can decide whether or not to block one on your own. I also have heard decent stuff about .zip, so that might be worth checking out.
It does suck how many communities ended up centralized on .world, but a lot of the news related ones that are the most susceptible to over-moderation have fairly active alternatives on other instances.