GPS Running Watch with Music and Contactless Payments. Easily download up to 500 songs to your watch, and connect with Bluetooth® headphones (sold separately) for phone-free listening. Syncs music from select streaming services for offline listening. Garmin Pay™ contactless payment solution lets you make convenient payments with your watch, so you can leave your cash and cards at home. Provides advanced running dynamics, including ground contact time balance, stride length, vertical ratio and more. Uses wrist-based heart rate to offer performance monitoring features, including evaluating your current training status. Battery life: up to 7 days in smartwatch mode; 5 hours in GPS mode with music.