Track your runs with GPS and altimeter. Pair your watch wirelessly with compatible gym equipment. Apple Watch Nike+ is swimproof, so you can take a post-run dip in the pool. And built-in cellular lets you stream your favorite music and get phone calls, messages, and notifications—even when you don’t have your phone. There are new Nike watch faces and two Nike bands: The Nike Sport Band with compression-molded perforations for breathability and the Nike Sport Loop woven with a special reflective thread.