Forerunner® 645 Music


GPS Running Smartwatch with music, Garmin Pay™ contactless payments and wrist-based heart rate



GPS running watch with music and Garmin Pay ready

  • Easily download up to 500 songs to your watch, and connect with Bluetooth® headphones (sold separately) for phone-free listening
  • Includes the Garmin Pay Ready contactless payment method1 that lets you make convenient payments with your watch, so you can leave your cash and cards at home
  • Provides advanced running dynamics2 including ground contact time balance, stride length, vertical ratio and more
  • Uses wrist-based heart rate3 to offer performance monitoring features, including evaluating your current training status
  • Battery life5: up to 7 days in smartwatch mode; 5 hours in GPS mode
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Additional information


With Black Coloured Band, With Cerise Coloured Band, Black with Slate Hardware, Black with Rose-gold Hardware