With Forerunner 645 Music, every run can become your best performance yet. This GPS running watch allows you to easily download up to 500 songs for easy, phone-free listening while you run. It also includes the Garmin Pay Ready contactless payment method, so you can leave your wallet at home, plus advanced running dynamics to help you fine-tune your training. Monitor heart rate at the wrist and tap into performance monitoring features, such as training status, that let you see how your body is responding to your workout efforts. Connected features bring you smart notifications and LiveTrack. And with Connect IQ, you can even customise your watch with free watch faces and apps such as Uber, SmartThing, Accuweather, MinuteCast.