Frontrunner 645 W/Music
Frontrunner 645 W/Music
Frontrunner 645 W/Music

Frontrunner 645 W/Music

Regular price$449.99
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With Forerunner® 645 Music, every run is a performance. This GPS running watch stores up to 500 songs and includes Garmin Pay™ contactless payment solution1, so you can leave your wallet at home. Fine-tune your training with wrist-based heart rate2 and advanced running dynamics3. Tap into additional performance monitoring features that evaluate your training and recovery. You can even customize your watch by downloading free watch faces, apps and more from the Connect IQ™ store, and stay linked to what matters with a variety of connected features4. So run to your own rhythm, and let built-in GPS and GLONASS accurately track how far, how fast and where you run.

Forerunner® 645 Music

  • Easily download up to 500 songs to your watch, and connect with Bluetooth® headphones (sold separately) for phone-free listening
  • Garmin Pay™ contactless payment solution1 lets you make convenient payments with your watch, so you can leave your cash and cards at home
  • Provides advanced running dynamics3, including ground contact time balance, stride length, vertical ratio and more
  • Evaluates your current training status to indicate if you’re undertraining or overdoing it and offers additional performance monitoring features
  • Connected features4 include smart notifications, automatic uploads to Garmin Connect™ and the ability to track your runs with LiveTrack
  • Customize with free watch faces, apps and more from the Connect IQ™ store
  • Garmin Elevate™ wrist heart rate technology gives you all-day heart rate monitoring at the wrist2
  • Built-in GPS and GLONASS lets you track how far, how fast and where you run — no phone connection required
  • Features all-day stress tracking and relaxation-based breathing timer to help balance stress and rest
  • Battery life5: up to 7 days in smartwatch mode and 5 hours in GPS mode with music


1View current supported country, payment network and issuing bank information at


3When used with Running Dynamics Pod or HRM-Run™ or HRM-Tri™ monitors (sold separately)

4When paired with a compatible smartphone; see

5Battery life may vary depending on selected performance mode and usage


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