If they get a OHR sensor update that does readings every second or much more frequently than now and that does more frequent HRV readings and slightly increase battery life, I’ll almost certainly upgrade my Ultra 1. I’d like them to bring back blood oxygen sensor use, too. It’s not that it’s a crucial metric for me. It’s more that it’s annoying to me for them to go backwards. They need to either figure out a deal with Massimo or have a new sensor ready.
I’ve been tempted by the Ultra 2 for brighter screen, improved Siri, and double tap, but I’ve held of this long that I figure I might as well wait for the fall.