Forerunner® 645 Music

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Easily download up to 500 songs to your watch, and connect with Bluetooth® headphones (sold separately) for phone-free listening.

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Overview

GPS running watch with music and Garmin Pay ready

  • Easily download up to 500 songs to your watch, and connect with Bluetooth® headphones (sold separately) for phone-free listening
  • Syncs music from Deezer (coming soon) for offline listening7
  • Includes the Garmin Pay Ready contactless payment method1lets you make convenient payments with your watch, so you can leave your cash and cards at home
  • 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
  • Battery life5: up to 7 days in smartwatch mode; 5 hours in GPS mode

Running is more than just exercise, it’s a performance. And Forerunner 645 Music has the tools to help you put on the perfect show every time you lace up your shoes. It features on-device music storage, so you can run with your favourite tunes. And contactless payments let you buy what you need without missing a beat. With all that plus advanced running dynamics and performance monitoring tools, this GPS running watch is the instrument you need perfect the act.

Music

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 favourite playlist for easy listening through Bluetooth headphones. 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. If you’re a Deezer premium+ subscriber you can even sync your carefully-crafted playlists to your watch for more ad-free listening (coming soon).

music

Paying made easy

Always on the run? Feel free to leave your phone and wallet behind. Forerunner 645 Music features the Garmin Pay Ready contactless payment method1, 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.

garmin pay

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 metrics2 that you can use to analyse your performance. Biomechanical measurements, such as cadence, stride lengthground contact time and balancevertical 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.

Training

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 new 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 new 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.

Monitor Performance

Ways to Customise

More ways to customise

Check out our 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 Itwatch 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 respond6 to text messages and see social media updates, emails and more right on your wrist. You can even use it to find your phone. Or access music controls. And let friends LiveTrack your runs.

Compete

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.

Training

Love the Look

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 extra-durable Corning® Gorilla® Glass. When you want to change it up, swapping bands is fast and doesn’t require tools. The perfect everyday companion, this lightweight watch is rated to 5 ATM (50 meters) to be safe for swimming and showering. 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.

Experience wireless audio

Method Wireless by Skullcandy is an ultra stable, sweat resistance 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 a Forerunner 645 Music.

1
2 When used with Running Dynamics Pod (sold separately) or HRM-Run or HRM-Tri monitor.
3 Activity tracking accuracy
4 When paired with a compatible smartphone
5 Under typical use; battery life may vary depending on usage
6 Responding capability available for Android™ customers only. Android is a trademark of Google Inc.
7 May require premium subscription by a third-party music provider
The Bluetooth® word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by Garmin is under license.

FirstbeatANT+

Spec

General

Lens Material Corning® Gorilla® Glass 3
Bezel Material Stainless steel
Quick Release Bands
Strap material Silicone
Physical dimensions 42.5 x 42.5 x 13.5 mm
Weight 42.2 g
Water rating 5 ATM
Display type Sunlight-visible, transflective memory-in-pixel (MIP)
Display size, WxH 1.2" (30.4 mm) diameter
Display resolution, WxH 240 x 240 pixels
Color display
Battery life Smartwatch Mode: Up to 7 days GPS mode with music: Up to 5 hours
Memory/history 200 hours of activity data

Clock Features

Time/date
GPS Time Sync
Automatic daylight saving time
Alarm clock
Timer
Stopwatch
Sunrise/sunset times
Face It™ watch face creator

Sensors

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

Daily Smart Features

Connectivity Bluetooth®, ANT+®, Wi-Fi®
Connect IQ™ (downloadable watch faces, data fields, widgets and apps)
Smart notifications
Text response/reject phone call with text (Android™ only)
Calendar
Weather
Music controls
Plays and controls watch music
Music Storage up to 500 songs
Find my phone feature
VIRB® remote
Smartphone compatibility iPhone® and Android™
Compatible with Garmin Connect™ Mobile
Find My Watch feature
Garmin Pay™

Heart Rate Features

HR zones
HR alerts
HR calories
% HR max
% HRR
Recovery time
Auto max HR
HRV stress test (measures your heart rate variability while standing still, for 3 minutes, to provide you with an estimated stress level; the scale of this is 1 to 100; low scores indicate lower stres Yes (Charging/data cable)
HR Broadcast (broadcasts HR data over ANT+™ to paired devices)

Activity Tracking Features

Step counter
Auto goal (learns your activity level and assigns a daily step goal)
Move bar (displays on device after a period of inactivity; walk for a couple of minutes to reset it)
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)

Training, Planning and Analysis Features

Activity history on watch
Customizable activity profiles
Customizable alerts
Audio prompts
Course guidance
Advanced workouts
Auto Lap®
Auto Pause®
Interval training
Auto scroll
Customizable screen(s)
Virtual Partner
Finish time
Configurable lap alerts
LiveTrack
Touch and/or button lock
Manual lap
Segments (Live, Garmin)
Strava features (Beacon, live segments)
GPS speed and distance
Training Effect (aerobic)
Training Effect (anaerobic)
Race an activity
Training Load (your total training load for the last 7 days calculated from estimated EPOC)
Downloadable training plans
Training Status (lets you see if you’re training effectively by tracking your training history and fitness level trend.)
V02 max

Running Features

Preloaded run profiles Yes (Running, Treadmill Running, Indoor Track)
GPS-based distance, time and pace
Running dynamics Yes (with compatible accessory)
Vertical oscillation and ratio (the degree of 'bounce' in your running motion and the cost-benefit ratio with stride length) Yes (Charging/data cable)
Ground contact time and balance (shows how much time, in the running motion, your foot is on the ground rather than in flight and lets you check your running symmetry) Yes (Charging/data cable)
Stride length (real time) Yes (Charging/data cable)
Cadence (provides real-time number of steps per minute)
Performance condition (after running 6–20 minutes, compares your real-time condition to your average fitness level)
Lactate threshold (through analysis of your pace and heart rate, estimates the point where your muscles start to rapidly fatigue) Yes (Charging/data cable)
Run workouts
Race predictor
Foot pod capable

Outdoor Recreation Features

Preloaded outdoor recreation profiles Skiing, Snowboarding, XC Skiing, Stand up Paddleboarding, Rowing
Point-to-point navigation
Bread crumb trail in real time
Back to start
TracBack®
UltraTrac™ mode
Elevation profile
Distance to destination
Vertical speed
Total ascent/descent
GPS coordinates

Cycling Features

Preloaded cycling profiles Biking, Indoor Biking
Courses (compete against previous activities)
Race an Activity
Time/distance alerts (triggers alarm when you reach goal)
Compatible with Vector™ (power meter)
Compatible with Varia Vision™ (head-mounted display)
Compatible with Varia™ lights
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)
Stroke type detection (freestyle, backstroke, breaststroke, butterfly)
Pool swim workouts
Swim efficiency (SWOLF)
Drill logging

Fitness Equipment/Gym

Preloaded gym activity profiles Strength Training, Cardio Training, Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing and Yoga
Cardio workouts
Strength workouts
Automatic rep counting

In the box

  • Forerunner 645 Music
  • Charging cable
  • Documentation
Added to Cart
Forerunner® 645 Music

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