Forerunner 645 Music - booley
Forerunner 645 Music - booley

Forerunner 645 Music

Regular price €460.00

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

  • Receive and respond to text messages and see social media updates, emails and more
  • Provides advanced running dynamics, including cadence, stride length, ground contact time and balance, vertical oscillation and vertical ratio

  • 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

  • Running, Cycling, Swimming & Outdoor Recreation activities


  • Physical size: 42.5 x 42.5 x 13.5 mm
  • Display size: 30.4 mm diameter
  • Weight: 42.2 g
  • Battery life: Smartwatch Mode: Up to 7 days; GPS mode with music: Up to 5 hours; GPS mode without music: Up to 14 hours
  • Water rating: 5 ATM

Clock Features

  • Time/date
  • GPS Time Sync
  • Automatic daylight saving time
  • Alarm clock
  • Timer
  • Stopwatch
  • Sunrise/sunset times


  • GPS
  • Garmin Elevate™ wrist heart rate monitor
  • Barometric altimeter
  • Compass
  • Gyroscope
  • Accelerometer
  • Thermometer

Activity Tracking Features

  • Step counter
  • Move bar (displays on device after a period of inactivity; walk for a couple of minutes to reset it)
  • Auto goal (learns your activity level and assigns a daily step goal)
  • Sleep monitoring (monitors total sleep and periods of movement or restful sleep)
  • Calories burned
  • Floors climbed
  • Distance traveled
  • Intensity minutes
  • TrueUp™
  • Move IQ™
  • Fitness Age yes (in app)
  • All-day Stress Tracking