If your Apple Watch is already your most consistent gym partner, the new updates coming to watchOS 4 this Fall are primed to turn it into your gym BFF. Jay Blahnik, director of fitness for Health Technologies at Apple, promises the new iteration will be "more powerful and easier to use than ever." I had a chance to preview some of the changes and improvements to the device Apple is rolling out in the coming months — here are a few of the ways they could transform your workouts: