Garmin Forerunner 645M GPS Running Watch Medium Black

New product

  • Easily download up to 500 songs to your watch, and connect with Bluetooth headphones (sold separately) for phone-free listening
  • Provides advanced running dynamics3, including ground contact time balance, stride length, vertical ratio and more

For More Details and Color Kindly Contact Us on +91 9833853388

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Garmin Forerunner 645M GPS Running Watch Medium Black

For More Details and Color Kindly Contact Us on +91 9833853388


Lens Materialchemically strengthened glass
Bezel Materialstainless steel
Quick Release Bands(20 mm, Industry standard)
Strap materialsilicone
Physical size42.5 x 42.5 x 13.5 mm Fits wrists with a circumference of 127-204 mm
Weight42.2 g
Water rating5 ATM
Display typesunlight-visible, transflective memory-in-pixel (MIP)
Display size1.2" (30.4 mm) diameter
Display resolution240 x 240 pixels
Color display 
Battery lifeSmartwatch Mode: Up to 7 days
GPS mode with music: Up to 5 hours
Memory/History200 hours of activity data

Clock Features

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


Garmin Elevate™ wrist heart rate monitor 
Barometric altimeter 

Daily Smart Features

ConnectivityBluetooth®, ANT+®, Wi-Fi®
Connect IQ™ (downloadable watch faces, data fields, widgets and apps) 
Smart notifications 
Text response/reject phone call with text (Android™ only) 
Controls smartphone music 
Find My Phone 
Find My Watch 
VIRB® remote 
Smartphone compatibilityiPhone® and Android™
Compatible with Garmin Connect™ Mobile 
Garmin Pay™ 

Activity Tracking Features

Step counter 
Move bar (displays on device after a period of inactivity; walk for a couple of minutes to reset it) 
Auto goal (learns your activity level and assigns a daily step goal) 
Sleep monitoring (monitors total sleep and periods of movement or restful sleep) 
Calories burned 
Floors climbed 
Distance traveled 
Intensity minutes 
Move IQ™ 
Fitness Age(in app)

Fitness Equipment/Gym

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

Training, Planning and Analysis Features

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

Heart Rate Features

HR zones 
HR alerts 
HR calories 
% HR max 
% HRR 
Recovery time 
Auto max HR 
HR Broadcast (broadcasts HR data over ANT+™ to paired devices) 

Running Features

Preloaded run profilesRunning, Treadmill Running, Indoor Track
GPS-based distance, time and pace 
Running dynamics 
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) 
Run workouts 
Race predictor 
Foot pod capable 

Outdoor Recreation Features

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

Cycling Features

Preloaded cycling profilesBiking, Indoor Biking
Race an activity 
Time/distance alerts (triggers alarm when you reach goal) 
Compatible with Varia Vision™ (head-mounted display) 
Compatible with Varia™ radar (rear-facing radar) 
Compatible with Varia™ lights 
Speed and cadence sensor support (with sensor)(ANT+® and Bluetooth® Smart)

Swimming Features

Preloaded swim profilesPool Swimming
Pool swim metrics (lengths, distance, pace, stroke count/rate, calories) 
Stroke type detection (freestyle, backstroke, breaststroke, butterfly) 
Swim efficiency (SWOLF) 
Drill logging 
Pool swim workouts