Testing carried out by Apple in August 2024 utilizing preproduction Apple Watch Extremely 2 (GPS + Mobile) paired using an iPhone; all equipment analyzed with prerelease application. Battery lifetime varies by use, configuration, cellular network, sign strength, and a number of other elements; actual effects will differ. Following sources documented https://www.jowissa.com/de-na/products/leather-watch-strap-glossy-croco-e3-1473-m