Testing conducted by Apple in August 2024 using preproduction Apple Watch Extremely 2 (GPS + Mobile) paired with the apple iphone; all units analyzed with prerelease computer software. Battery daily life varies by use, configuration, mobile network, signal toughness, and a number of other variables; genuine final results will range. https://www.jowissa.com/de-na/products/facet-swiss-ladies-watch-j5-602-m