Garmin Forerunner 645 Music Black
Version/Colour
Features
Overview
- Running watch with music and compatible with Spotify Premium Account
- Lightweight, waterproof (5 ATM, 50 metres) GPS running watch with wrist-based heart rate sensor
- Advanced running dynamics when paired with optional running dynamics pod or HRM-Run/HRM-Tri straps
- Supports a variety of different sports: running, cycling, swimming
- Smart notifications: texts, emails, social media
- Customisable with downloadable apps, widgets, watch faces
- Supports contactless payments - limited in Ireland to KBC Mastercard
- Long battery life: up to 7 days in smartwatch mode, 14 hours in GPS mode
Product Screen Shots
- Forerunner 645 Music GPS watch
- Charging cradle
- Documentation
Specs
Technical Specification
| Garmin Forerunner 645 Music Black | Product Code: 010-01863-30 |
General |
|
| Lens Material | Corning Gorilla Glass 3 |
| Bezel Material | Stainless steel |
| Case Material | Fibre-reinforced polymer |
| Quick Release Bands | Yes (20 mm) |
| Strap Material | Silicone |
| Physical Size | 42.5 x 42.5 x 13.5 mm |
| Display Size | 1.2" (30.4 mm) diameter |
| Display Resolution | 240 x 240 pixels |
| Display Type | Colour, sunlight-visible, transflective memory-in-pixel (MIP) |
| Weight | 42.2 g |
| Battery Life |
Smartwatch Mode: Up to 7 days GPS mode without music: Up to 14 hours GPS mode with music: Up to 5 hours |
| Water Rating | 5 ATM |
| 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 |
Health Monitoring |
|
| Wrist-based Heart Rate (constant, every second) | yes |
| Daily Resting Heart Rate | yes |
| Fitness Age | yes (in app) |
| All-Day Stress Tracking | yes |
| Relaxation Breathing Timer | yes |
| Sleep | yes |
| Hydration | yes (in Garmin Connect) |
| Menstrual Cycle | yes (in Garmin Connect) |
Sensors |
|
| GPS | yes |
| Glonass | yes |
| Galileo | yes |
| Garmin Elevate Wrist Heart Rate Monitor | yes |
| Barometric Altimeter | yes |
| Compass | yes |
| Accelerometer | yes |
| Thermometer | Yes |
| Gryoscope | yes |
Daily Smart Features |
|
| Connectivity | Bluetooth Smart, Ant+, Wi-Fi |
| Connect IQ (Downloadable watch faces, data fields, widgets, apps) | yes |
| Smart Notifications | yes |
| Text Response/Reject Phone Call with Text (Android only) | yes |
| Calendar | yes |
| Weather | yes |
| Find My Phone | yes |
| Find My Watch | yes |
| Smartphone Compatibility | iPhone, Android |
| Controls Smartphone Music | yes |
| Garmin Pay | Yes |
| Compatible with Garmin Connect Mobile | yes |
| VIRB Camera remote | Yes |
| Plays and Controls Watch Music | yes |
| Music Sorage | Up to 500 songs |
Safety and Tracking Features |
|
| LiveTrack | Yes |
| Incident Detection Diring Selected Activities | Yes |
Activity Tracking Features |
|
| Step Counter | yes |
| Move Bar | yes |
| Auto Goal | yes |
| Calories Burned | yes |
| Floors Climbed | yes |
| Distance Travelled | yes |
| Intensity Minutes | yes |
| TrueUp | yes |
| Move IQ | yes |
Fitness equipment/gym |
|
| Available Gym Activity Profiles | Strength, cardio and 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 |
|
| HR Zones | yes |
| HR Alerts | yes |
| HR Calories | yes |
| % HR Max | yes |
| % HRR | yes |
| Auto Max HR | yes |
| Recovery Time | yes |
| HR broadcast (broadcasts HR data over Ant+ to paired devices) | yes |
| GPS Speed and Distance | yes |
| Customisable Screens | yes |
| Customisable Activity Profiles | yes |
| Auto Pause | yes |
| Interval training | yes |
| Advanced Workouts | yes |
| Downloadable Training Plans | yes |
| Auto Lap | yes |
| Manual Lap | yes |
| Configurable Lap Alerts | yes |
| VO2 Max | yes |
| Training Status | yes |
| Training Load | yes |
| Training Effect (Aerobic) | yes |
| Training Effect (Anerobic) | yes |
| Customisable Alerts | yes |
| Audio Prompts | yes |
| Finish Time | yes |
| Virtual Partner | yes |
| Race an Activity | yes |
| Course Guidance | yes |
| Garmin Live Segments | yes |
| Strava Live Segments | yes |
| Touch and/or Button Lock | yes |
| Activity History on Watch | yes |
| Physio TrueUp | yes |
| Auto Scroll | yes |
Running Features |
|
| Available Run Profiles | Running, Treadmill Running, Indoor Track Running, Trail Running |
| GPS-Based Distance, Time, Pace | yes |
| Running Dynamics | yes (with compatible accessory) |
| Vertical Oscillation and Ratio | yes (with compatible accessory) |
| Ground Contact Time and Balance | yes (with compatible accessory) |
| Stride Length | yes (with compatible accessory) |
| Cadence (provides real-time number of steps per minute) | yes |
| Performance Condition | yes |
| Run Workouts | yes |
| Race Predictor | yes |
| Foot Pod Capable | yes |
Outdoor Recreation Features |
|
| Available Outdoor Recreation Profiles | Skiing, Snowboarding, XC Skiing, Stand up Paddleboarding, Rowing |
| Point-to-Point Navigation | yes |
| Breadcrumb 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 |
|
| Alerts (triggers alarms when you reach goals) | yes |
| Courses | yes |
| Garmin Cycle Map | no |
| Available Cycling Profiles | Biking, indoor biking |
| Race an Activity | yes |
| Compatible with Varia Vision | yes |
| Compatible with Varia Radar | yes |
| Compatible with Varia Lights | yes |
| Speed and Cadence Sensor Support | yes (ANT+ and Bluetooth Smart sensors) |
Swimming Features |
|
| Available Swim Profiles | Pool Swimming |
| Pool Swim Metrics (lengths, distance, pace, stroke count, swim efficiency, calories) | yes |
| Stroke Type Detection | yes |
| Drill Logging (pool swim only) | yes |
| Basic Rest Timer (up from 0, pool swim only) | yes |
| Countdown Start | yes |
| Pool Swim Workouts | yes |
| "Repeat On" Rest Timer | yes |
