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    Get Addicted to Beating your PR's! 

    • Provides advanced running dynamics, including ground contact time balance, stride length, vertical ratio and more
    • Garmin Pay: leave your wallet at home
    • Weight: 42g
    • Uses wrist-based heart rate to offer performance monitoring features, including evaluating your current training status
    • Connected features include smart notifications, automatic uploads to Garmin Connect™ and the ability for others to track your runs with the LiveTrack feature
    • Customize with free watch faces, apps and more from Garmin Connect IQ™ store
    • Battery life: up to 7 days in smartwatch mode; 14 hours in GPS mode

    In The Box:

    • Forerunner 645
    • Charging cable
    • Documentation

    Lens Material

     Corning® Gorilla® Glass 3

    Bezel Material

     stainless steel

    Quick Release Bands  yes (20 mm, Industry standard)
    Strap material


    Physical size

    42.5 x 42.5 x 13.5 mm

    Fits wrists with a circumference of 127-204 mm

    Display size 1.2" (30.4 mm) diameter
    Display resolution 240 x 240 pixels
    Display type  sunlight-visible, transflective memory-in-pixel (MIP)

    41.8 g

    Battery life   Smartwatch Mode: Up to 7 daysGPS mode: Up to 14 hours
    Water rating 5 ATM
    Color display
    Memory/History 200 hours of activity data