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Running is more than just exercise. It's a performance. With advanced monitoring tools and contactless payments, the Garmin Forerunner 645 GPS watch lets you put on an outstanding show on every run.

  • Features

    • Garmin Pay™ contactless payment solution lets you make convenient payments with your watch, so you can leave your cash and cards at home
    • Wrist-based heart-rate monitoring helps you monitor your exertion levels and refine your training
    • Tracks speed, distance, steps and calories burned, as well as advanced running dynamics including ground contact time, balance, stride length, vertical ratio and more
    • 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 the Garmin Connect IQ™ store
    • Battery life: up to 7 days in smartwatch mode; 12 hrs. in GPS mode

    Imported.

    View all Garmin GPS Sports Watches
  • Technical Specs

    Best Use

    Running

    Average Battery Life

    Smartwatch mode: 7 days; GPS mode: 12 hrs.

    Battery Type

    Lithium Ion

    Display Size

    1.2 inches

    Illumination

    Backlight

    Altimeter

    Pressure-based

    Compass

    Yes

    GPS/Satellite Detectable

    Yes

    HRM Included/Integrated

    Yes

    Heart Rate Sensor Type

    Wrist-based

    Average Heart Rate

    Yes

    Heart Rate Target Zone(s)

    Yes

    VO2 Max Estimate

    Yes

    Recovery Advising

    Yes

    Tracks Steps

    Yes

    Pedometer Type

    Digital 3-axis Accelerometer

    Pace Alert

    Yes

    Interval Training

    Yes

    Tracks Calories Burned

    Yes

    Water-Resistant Depth

    50 meters

    Pool Lap Recognition

    Yes

    Stroke Recognition

    Yes

    Sleep Tracking

    Yes

    Alarm

    Yes

    Time Display

    Yes

    Stopwatch

    Yes

    Customization

    Apps

    Watch Faces

    Smart Device Notifications

    Yes

    Gender

    Unisex

    Sustainability

    Contains recycled materials

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