For me, the worst part about running in cold weather isn’t the freezing wind, black ice, or the fact that my face feels like it’s been stabbed with one thousand needles. It’s the 10 seconds spent shivering as my icicle fingers navigate through menus to launch an Apple Watch workout. Ten seconds isn’t much, but it’s enough for the cold to seep into your bones because you’re not moving. That’s why I was stoked for the Apple Watch Ultra and one of its key new features: the Act...