Tests carried out by Apple in August 2024 using preproduction Apple Watch Ultra two (GPS + Mobile) paired by having an iPhone; all gadgets examined with prerelease computer software. Battery life differs by use, configuration, mobile network, signal power, and a number of other variables; precise success will differ. Indeed. https://www.jowissa.com/de-na/products/roma-swiss-ladies-watch-j2-289-s