Testing executed by Apple in August 2024 making use of preproduction Apple Watch Ultra 2 (GPS + Cellular) paired by having an iPhone; all products tested with prerelease program. Battery existence may differ by use, configuration, mobile network, signal energy, and all kinds of other aspects; precise benefits will change. https://www.jowissa.com/de-na/products/anwy-swiss-ladies-watch-j6-317-l