Personally I wouldn’t get it unless you’re into a lot of athletic stuff.
The ultra is virtually 2x the price, but it comes with a lot of stuff that makes it competitive with garmin and coros for athletes. If you were to buy it and not use it to its potential, you’re getting an identical experience to a series 9 but it’s bulkier and the battery lasts a bit longer.
It also worth mentioning that big watches like these tend to get caught in cuffs and can be pretty annoying at times, you probably wouldn’t even notice a regular series watch mon your wrist most times.
The thing with tech is there is always gonna be the “better one next year”, if there wasn’t, the companies would be in trouble.