Have had my ultra2 for 10 months. Love it. I have knocked it on walls, etc. and it has taken chunks out of the wall rather than chunks out of itself. 
Hubby now has both. I like the blackI looked at the black version when I was at the Apple Store the other day. I think the original looks better.
I tried but returned mine and went back to the S10 Ti. Thinner and much less bulk and all the features I need and more. To each their own.
Ppl say that the Black one IS lighter than the titanium sliver one. ;-). It’s also slimming.Well after previously returning the Ultra original due to the weight on my wrist, then buying again then returning for the same reason for testing..
I have purchased the Black Ultra 2 and gave the watch a long time to see if I still feel the same way, and I don't, and it's fantastic
What I would say to everyone who feels it's too 'weighty' on their wrist, definetely give it some time for you to adjust.
It's a fantastic watch, and the battery life is just the cherry on top!
When talking about health features - more is of course always prefered, but I'm from Europe so we have the blood oxygen on the newest models as well and to be honest not really a feature I use - many say they will stay on old models to keep it, but do I miss something or is that a bit over the top?I bought my Apple Watch Ultra at the perfect time in 2023. Right before the blood oxygen capability got removed. As tempted as I am to get an Apple Watch Series 10, I'm probably going to keep this until 2028 unless we get major feature upgrades before then.