Apple Watch Nike+ Series 4 (GPS + Cellular) 44mm Space Gray Aluminum Case with Anthracite/Black Nike Sport Band - Space Gray Aluminum

Band fits 140-210mm wristsCompatible with iOSAnthracite/Black Nike Sport BandGPS enabledHeart rate sensorUp to 18 hours of battery lifeWater-resistant up to 164'

Track your runs with GPS and altimeter. Pair your watch wirelessly with compatible gym equipment. Apple Watch Nike+ is swimproof² so you can take a post-run dip in the pool. And built-in cellular¹ 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 bands: The Nike Sport Band with compression-molded perforations for breathability and the Nike Sport Loop is woven with a special reflective thread.