Garmin Forerunner 645 Music GPS Smartwatch with Cerise Colored Band

Item # GRFR645MC (Part # 010-01863-21)
Not Available
Brand new, USA Warranty
and choose One-Day Shipping at checkout.
Item Description:
Forerunner 645 Music has the tools to help you put on an outstanding show every time you lace up. It features on-device music storage, so you can run with your favorite tunes, and contactless payments that let you buy what you need without missing a beat.

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 (Coming Soon!)
  • Provides advanced running dynamics, including ground contact time balance, stride length, vertical ratio and more
  • 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 is more than just exercise - it's a performance. And Forerunner 645 Music has the tools to help you put on an outstanding show every time you lace up your shoes. It features on-device music storage - so you can run with your favorite tunes - and contactless payments that let you buy what you need without missing a beat. With all those features plus advanced running dynamics and performance monitoring tools, this GPS running watch is the instrument you need to refine the performance.


With up to 500 songs worth of music storage built right into your watch, we're putting the "beat" in your daily mission to beat yesterday. It's easy to transfer music from your computer and then queue up your favorite playlist for easy listening through Bluetooth headphones. You can even sync your carefully crafted playlists from select music streaming services to your watch for more ad-free listening. Now you really can leave your phone behind when you head out for a run, because the music that helps keep you moving is right there on your wrist.

Paying Made Easy

Always on the run? Feel free to leave your phone and wallet behind. Forerunner 645 Music features Garmin Pay contactless payment solution, which lets you pay for purchases with your watch. Use it just about anywhere you can tap your card to pay. A bottle of water here, a bite to eat there - just pay, and keep on moving.

Tune up Your Training

We're making it easier to get the data you need to improve your form. Let Forerunner 645 Music measure crucial running metrics that you can use to analyze your performance. Biomechanical measurements, such as cadence, stride length, ground contact time and balance, vertical oscillation and vertical ratio, are the key to understanding your form so you can bring your best on race day. These metrics are available with the addition of a compatible heart rate strap or the compact Running Dynamics Pod, which clips right onto your waistband. Also, take advantage of feature sets to help with cycling and even swim training. In the pool, Forerunner 645 Music will track your distance, pace, stroke count and more.

Monitor Your Performance

Just how effective is your current training plan? Forerunner 645 Music will help you monitor your training and recovery so you can better prepare for a race or training cycle. Training status is a performance monitoring tool that automatically evaluates your recent exercise history and performance indicators to let you know if you?re training productively, peaking or overreaching. The anaerobic training effect metric opens a window of insight to a critical dimension of training, telling you how your training is improving your ability to push the limits. You can even view your overall training load, which measures your exercise volume from the last 7 days and compares it to the optimal range for your fitness and recent training history.

More Ways to Customize

Check out the Connect IQ store, where you can add personality to Forerunner 645 Music by downloading apps, widgets, watch faces and more. It's easy and - even better - it's free. New apps are added every day, so you can keep tabs on when your Uber is arriving, turn on your lights at home with the SmartThings app, and even use the AccuWeather MinuteCast app to find out when the rain will start. With the Face It watch face app, choose any image from your photo library, make some tweaks, and set it as your watch?s face.

Stay Connected on the Run

Forerunner 645 Music makes it easy to run without leaving important smart features behind. Once paired with your compatible smartphone, you'll be able to receive and even respond to text messages and see social media updates, emails and more right on your wrist. Find your phone, access music controls, and let friends LiveTrack your runs.

Share and Compete

Syncing your activities to Garmin Connect is for more than just storing your data. Garmin Connect is a thriving online community where people on the go can connect and compete by joining challenges, encourage each other's successes and even share their triumphs via social media. Garmin Connect is free and available on the web or on your smartphone with the Garmin Connect Mobile app.

Train Your Way

Your routine is anything but routine. Forerunner 645 Music lets you change things up with ease, thanks to built-in activity profiles for running (indoor/outdoor), cycling (indoor/outdoor), swimming (pool), elliptical, paddle sports, strength training and many more. Create your own custom workouts, and download for free from our Garmin Connect online fitness community. Then review your past efforts on the app, or share them with family and friends for added motivation.

Love the Look

Designed for runners, Forerunner 645 Music features a reliable five-button interface that lets you mark laps with a quick press. Feel free to take this watch outside in all kinds of weather. Not only is it safe for swimming and showering, its Garmin Chroma Display is easy to read - even in direct sunlight - and housed under chemically strengthened glass. When you want to change it up, swapping bands is fast and doesn?t require tools. And with up to 7 days of battery life in smartwatch mode and 5 hours in GPS mode with music playback, Forerunner 645 Music is the running partner that can keep up with you.

iHeartRadio All Access - All Your Favorite Music

iHeartRadio All Access makes it easy to take your music with you. Just download playlists to your Forerunner 645 Music, and go! Sign up for a free 30-day trial of iHeartRadio All Access today to take your favorite music offline and listen while you?re on the move.

Experience Wireless Audio

Method Wireless by Skullcandy is an ultrastable, sweat-resistant sports earbud with 9 hours of battery life. Pair it with your Forerunner 645 Music, and experience wireless audio with a bud that stays put, regardless of activity. Take advantage of a 50% discount when you purchase Forerunner 645 Music.



  • Lens Material: Chemically strengthened glass
  • Bezel Material: Stainless steel
  • Quick Release Bands: Yes (20 mm, Industry standard)
  • Strap Material: Silicone
  • Physical Size: 42.5 x 42.5 x 13.5 mm, Fits wrists with a circumference of 127-204 mm
  • Weight: 42.2 g
  • Water Rating: 5 ATM
  • Display Type: Sunlight-visible, transflective memory-in-pixel (MIP)
  • Display Size: 1.2" (30.4 mm) diameter
  • Display Resolution: 240 x 240 pixels
  • Color Display: Yes
  • Battery Life Smartwatch Mode: Up to 7 days
  • Battery Life GPS Mode with Music: Up to 5 hours
  • Memory/History: 200 hours of activity data

Clock Features

  • Time/Date: Yes 
  • GPS Time Sync: Yes
  • Automatic Daylight Saving Time: Yes 
  • Alarm Clock: Yes 
  • Timer: Yes 
  • Stopwatch: Yes 
  • Sunrise/Sunset Times: Yes 
  • Face It Watch Face Creator: Yes 


  • GPS: Yes 
  • GLONASS: Yes  
  • Garmin Elevate Wrist Heart Rate Monitor: Yes  
  • Barometric Altimeter: Yes  
  • Compass: Yes 
  • Gyroscope: Yes 
  • Accelerometer: Yes 
  • Thermometer: Yes 

Daily Smart Features

  • Connectivity: Bluetooth, ANT+, Wi-Fi
  • Connect IQ (downloadable watch faces, data fields, widgets and apps): Yes 
  • Smart Notifications: Yes
  • Text response/reject phone call with text (Android only): Yes 
  • Calendar: Yes
  • Weather: Yes
  • Controls Smartphone Music: Yes 
  • Plays and Controls Watch Music: Yes 
  • Music Storage: Up to 500 songs
  • Find My Phone: Yes 
  • Find My Watch: Yes 
  • VIRB Remote: Yes 
  • Smartphone Compatibility: iPhone and Android
  • Compatible with Garmin Connect Mobile: Yes 
  • Garmin Pay: Yes 

Activity Tracking Features

  • Step Counter: Yes 
  • Move Bar (displays on device after a period of inactivity; walk for a couple of minutes to reset it): Yes 
  • Auto Goal (learns your activity level and assigns a daily step goal): Yes 
  • Sleep Monitoring (monitors total sleep and periods of movement or restful sleep): Yes 
  • Calories Burned: Yes 
  • Floors Climbed: Yes 
  • Distance Traveled: Yes 
  • Intensity Minutes: Yes 
  • TrueUp: Yes
  • Move IQ: Yes 
  • Fitness Age: Yes (in app)

Fitness Equipment/Gym

  • Preloaded Gym Activity Profiles: Strength Training, Cardio Training, Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing and Yoga
  • Cardio Workouts: Yes 
  • Strength Workouts: Yes 
  • Automatic Rep Counting: Yes 

Training, Planning and Analysis Features

  • GPS Speed and Distance: Yes 
  • Customizable Data Pages: Yes 
  • Customizable Activity Profiles: Yes 
  • Auto Pause: Yes
  • Interval Training: Yes 
  • Advanced Workouts: Yes
  • Downloadable Training Plans: Yes 
  • Auto Lap: Yes
  • Manual Lap: Yes
  • Virtual Partner: Yes
  • Configurable Lap Alerts: Yes 
  • V02 Max: Yes 
  • Training Status (lets you see if you're training effectively by tracking your training history and fitness level trend.): Yes 
  • Training Load (your total training load for the last 7 days calculated from estimated EPOC): Yes 
  • Training Effect (aerobic): Yes 
  • Training Effect (anaerobic): Yes 
  • Customizable Alerts: Yes 
  • Audio Prompts: Yes 
  • Finish Time: Yes
  • Race an Activity: Yes
  • Course Guidance: Yes
  • Segments (Live, Garmin): Yes
  • Strava Features (Beacon, live segments): Yes
  • LiveTrack: Yes
  • Touch and/or Button Lock: Yes
  • Auto scroll: Yes
  • Activity History on Watch: Yes 

Heart Rate Features

  • HR Zones: Yes 
  • HR Alerts: Yes 
  • HR Calories: Yes 
  • % HR Max: Yes 
  • % HRR: Yes
  • Recovery Time: Yes
  • Auto Max HR: Yes
  • HR Broadcast (broadcasts HR data over ANT+ to paired devices): Yes 

Running Features

  • Preloaded Run Profiles: Running, Treadmill Running, Indoor Track
  • GPS-Based Distance, Time and Pace: Yes 
  • Running Dynamics: Yes (with compatible accessory)
  • Cadence (provides real-time number of steps per minute): Yes 
  • Performance Condition (after running 6?20 minutes, compares your real-time condition to your average fitness level): Yes 
  • Run Workouts: Yes 
  • Race Predictor: Yes 
  • Foot Pod Capable: Yes 

Outdoor Recreation Features

  • Preloaded Outdoor Recreation Profiles: Skiing, Snowboarding, XC Skiing, Stand up Paddleboarding, Rowing
  • Point-to-Point Navigation: Yes 
  • Bread crumb trail in real time: Yes 
  • Back to Start: Yes 
  • TracBack: Yes 
  • UltraTrac Mode: Yes 
  • Elevation Profile: Yes 
  • Distance to Destination: Yes
  • Vertical Speed: Yes 
  • Total Ascent/Descent: Yes 
  • GPS Coordinates: Yes

Cycling Features

  • Preloaded cycling profiles: Biking, Indoor Biking
  • Courses: Yes 
  • Race an activity: Yes 
  • Time/distance alerts (triggers alarm when you reach goal): Yes 
  • Compatible with Varia Vision (head-mounted display): Yes 
  • Compatible with Varia Radar (rear-facing radar): Yes 
  • Compatible with Varia Lights: Yes 
  • Speed and cadence sensor support (with sensor): Yes (ANT+ and Bluetooth Smart)

Swimming Features

  • Preloaded swim profiles: Pool Swimming
  • Pool swim metrics (lengths, distance, pace, stroke count/rate, calories): Yes 
  • Stroke type detection (freestyle, backstroke, breaststroke, butterfly): Yes 
  • Swim efficiency (SWOLF): Yes 
  • Drill logging: Yes 
  • Pool swim workouts: Yes 
Garmin Forerunner 645 Music GPS Smartwatch with Cerise Colored Band
Charging Cable
This Kit Includes: