Garmin Forerunner 645 Music GPS Running Smartwatch

Garmin Forerunner 645 Music GPS Running Smartwatch

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Product Information

Train like a champion with the Garmin Forerunner 645 Music GPS Running Smartwatch. This feature-rich smartwatch does it all, from tracking your steps, running dynamics, and calories to monitoring your stress levels and providing pace and distance information during your workouts. It pairs to your smartphone, provides personalized coaching with the Garmin Coach adaptive training plans, and allows you to download and listen to up to 500 songs wirelessly with Bluetooth headphones.


  • Tracks advanced running dynamics
  • GPS tracks pace, distance, intervals, etc.
  • Garmin Coach adaptive training plans for personalized coaching
  • Automatic uploads to Garmin Connect™ online community
  • Safety features with incident detection to send location to emergency contacts
  • Garmin Pay® allows contactless payment with watch
  • Syncs with music streaming services like Spotify® to play songs from watch
  • Stores up to 500 songs
  • Connects to Bluetooth® headphones


  • 5-button interface
  • Corning® Gorilla® Glass 3 lens
  • Stainless steel bezel material
  • 20mm quick release bands
  • Silicone strap
  • Includes watch, charging cable, documentation


  • Size: 42.5 x 42.5 x 13.5mm
  • Display Size: 1.2” diameter
  • Display Resolution: 240 x 240 pixels
  • Fits: 127-204mm wrist circumference
  • Weight: 42.2 g
  • Battery Life: Up to 7 days (smartwatch mode), up to 14 hours (GPS mode without music), up to 5 hours (GPS mode with music)
  • Water Rating: Swim, 5 ATM
  • Memory/History: 200 hours of activity data

Additional Details

  • 1-Year Consumer Limited Warranty
  • Style: 010-01863M