
Apple has highlighted a battery boost with each new Ultra model. Last year, the Ultra 3 was rated for up to 42 hours of normal use, up from 36 hours on the Ultra 2.
Article Link: Apple Watch Ultra 4 to Get Improved Battery Life

This site may as well be renamed www.markgurman.com - so boring.
I had the ultra 2, it lost around 20-25% a day but gained that back charging each morning on the fast charger while showering etc.My ultra 1 is struggling to make it a day. I may be out on ultra though.
Does it need to be Apple Pay? Other brands of smartwatches have their own payment systems.I would never want a Garmin because I'd have to give up Apple Pay, Apple Messages Notes Mail Music etc etc etc, but worst of all Garmin makes you proselytize.
I have the 2 with a cellular plan, I turned off the always on display and it really gave me a lot more life, but it wasn't anywhere near as good as it was when it released, I blame the subsequent watchOS releases.I had the ultra 2, it lost around 20-25% a day but gained that back charging each morning on the fast charger while showering etc.