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- Easily download up to 500 songs to your watch, and connect with Bluetooth headphones for phone-free listening
- Provides advanced running dynamics², including ground contact time balance, stride length, vertical ratio and more
- Uses wrist-based heart rate³ to offer performance monitoring features, including evaluating your current training status
- Connected features4 include smart notifications, automatic uploads to Garmin Connect and the ability for others to track your runs with the LiveTrack feature
- Customise with free watch faces, apps and more from the Garmin Connect IQ store
- Battery life5: FR 645 - up to 7 days in smartwatch mode; 14 hours in GPS mode / FR 645 Music - up to 7 days in smartwatch mode; 14 hours in GPS mode
With up to 500 songs worth of music storage built right into your watch, Garmin are 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 services¹ 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.
Tune up Your Training
Garmin are making it easier to get the data you need to improve your form. Let Forerunner 645 or 645 Music measure crucial running metrics³ that you can use to analyse your performance. Biomechanical measurements², 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, either the Forerunner 645 or 645 Music will track your distance, pace, stroke count and more.
Monitor Your Performance
Just how effective is your current training plan? Both the Forerunner 645 and 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 Customise
Check out the Gramin Connect IQ store, where you can add personality to your Forerunner 645 or 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
The Forerunner 645 or 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 respond7 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 or 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, Both the Forerunner 645 amd 645 Music feature 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. Additionally, with up to 7 days of battery life in smartwatch mode and 14 hours for the Forerunner 645 in GPS mode and 5 hours for the Forerunner 645 Music in GPS mode with music playback, These watches are the running partner that can keep up with you.
²View current supported country, payment network and issuing bank information
³When used with Running Dynamics Pod or HRM-Run or HRM-Tri monitor (sold separately)
4Activity tracking accuracy
5Battery life may vary depending on selected performance mode and usage
6When paired with a compatible smartphone
7Responding capability available for Android customers only
The Bluetooth word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by Garmin is under license. Android is a registered trademark of Google Inc.
|Name||Garmin Forerunner 645 Music Black|
|In the box||Forerunner 645 (colour / model specific) Charge cable Quick Start Manual|
|Physical dimensions||42.5 x 42.5 x 13.5 mm Fits wrists with a circumference of 127-204 mm|
|Display size, WxH||1.2" (30.4 mm) diameter|
|Display resolution, WxH||240 x 240 pixels|
|Display type||sunlight-visible, transflective memory-in-pixel (MIP)|
|Negative mode display||No|
|Water rating||5 ATM|
|Smart notifications (displays email, text and other alerts when paired with your compatible phone)||No|
|Find my Phone feature||Yes|
|Accelerometer (calculates distance for indoor workouts, without need for a foot pod)||Yes|
|Bike speed/cadence sensor||Yes|
|Heart rate monitor||Yes|
|Pace alert (triggers alarm if you vary from preset pace)||Yes|
|Heart rate-based calorie computation||Yes|
|Calculates calories burned||Yes|
|Pool swim metrics (lengths, distance, pace, stroke count/rate, calories)||Yes|
|Measures shot distance (calculates exact yardage for shots from anywhere on course)||No|
|Yardage to F/M/B (distance to front, middle and back of green)||No|
|Yardage to layups/doglegs||No|
|Auto goal (learns your activity level and assigns a daily step goal)||Yes|
|Move bar (displays on device after a period of inactivity; walk for a couple of minutes to reset it)||Yes|
|Sleep monitoring (monitors total sleep and periods of movement or restful sleep)||Yes|
|Garmin Connect™ compatible||Yes|
Pool swim workouts
Swim efficiency (SWOLF)
Stroke type detection (freestyle, backstroke, breaststroke, butterfly)
Preloaded swim profiles
Compatible with Varia™ lights
Compatible with Varia™ radar (rear-facing radar)
Compatible with Varia Vision™ (head-mounted display)
Time/distance alerts (triggers alarm when you reach goal)
Race an activity
Preloaded cycling profiles