Garmin Forerunner 645 Music

Sensors Accelerometer YES Barometric altimeter YES Compass YES Garmin Elevate™ wrist heart rate monitor YES GLONASS YES GPS YES Gyroscope YES Thermometer YES Clock Features Alarm clock YES Automatic daylight saving time YES GPS Time Sync YES Stopwatch YES Sunrise/sunset times YES Time/date YES Timer YES Daily Smart Features Calendar YES Compatible with Garmin Connect™ Mobile YES Connect IQ™ YES, (downloadable watch faces, data fields, widgets and apps) Connectivity Bluetooth® Smart, ANT+®, Wi-Fi® Controls smartphone music YES Face It™ watch face creator YES Find my Phone feature YES Find My Watch feature YES Garmin Pay™ YES Music controls YES Music Storage up to 500 songs Plays and controls watch music YES Smart notifications YES Smartphone compatibility iPhone®, Android™, Windows® Text response/reject phone call with text (Android™ only) YES VIRB® Camera Remote YES Weather YES Fitness Equipment/Gym Automatic rep counting YES Cardio workouts YES Preloaded gym activity profiles Strength Training, Cardio Training, Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing and Yoga Strength workouts YES GENERAL Battery life Smartwatch Mode: Up to 7 days GPS mode without music: Up to 14 hours GPS mode with music: Up to 5 hours Battery type Rechargeable lithium-ion Bezel material: Stainless steel Case material: fiber-reinforced polymer Colour display YES Display resolution 240 x 240 pixels Display size 1.2" (30.4 mm) diameter Display type sunlight-visible, transflective memory-in-pixel (MIP) Lens material: Corning® Gorilla® Glass 3 Memory/history 200 hours of activity data Physical size 42.5 x 42.5 x 13.5 mm QuickFit™ watch bands yes (20 mm, Industry standard) Strap material: silicone Water rating 5 ATM Weight , 42.2 g Heart Rate Features % HR max YES % HRR YES Auto max HR YES HR alerts YES HR Broadcast (broadcasts HR data over ANT+™ to paired devices) YES HR calories YES HR zones YES Recovery time YES Outdoor Recreation Features Back to start YES Bread crumb trail in real time YES Distance to destination YES Elevation profile YES GPS coordinates YES Point-to-point navigation YES Preloaded outdoor recreation profiles Skiing, Snowboarding, XC Skiing, Stand up Paddleboarding, Rowing Total ascent/descent YES UltraTrac™ mode YES Vertical speed YES Training, Planning and Analysis Features Activity history on watch YES Advanced workouts YES Audio prompts YES Auto Lap® YES Auto Pause® YES Auto scroll YES Configurable lap alerts YES Course guidance YES Customisable alerts YES Customisable screen(s) YES Customizable activity profiles YES Customizable alerts YES Downloadable training plans YES Finish time YES Fitness Age yes (in app) GPS speed and distance YES LiveTrack YES Manual lap YES Segments (Live, Garmin) YES Touch and/or button lock YES Training Effect (aerobic) YES Training Effect (anaerobic) YES Training Load YES, (your total training load for the last 7 days calculated from estimated EPOC) Training Status YES, (lets you see if you’re training effectively by tracking your training history and fitness level trend.) V02 max YES Vibration alerts YES Virtual Partner YES Virtual Racer™ YES Running Features Cadence (provides real-time number of steps per minute) YES Foot pod capable YES GPS-based distance, time and pace YES Performance condition YES, (after running 6–20 minutes, compares your real-time condition to your average fitness level) Preloaded run profiles yes (Running, Treadmill Running, Indoor Track) Race predictor YES Run workouts YES Running dynamics YES Cycling Features Bike lap and lap maximum power (with power sensor) YES Compatible with Varia Vision™ (head-mounted display) YES Compatible with Varia™ lights YES Compatible with Varia™ radar (rear-facing radar) YES Compatible with Vector YES, (power meter) Courses (compete against previous activities) YES FTP (Functional Threshold Power) yes (with compatible accessory) Interval training YES Power meter compatible YES, (displays power data from compatible third-party ANT+™-enabled power meters) Preloaded cycling profiles Biking, Indoor Biking Race an activity YES Speed and cadence sensor support (with sensor) yes (ANT+® and Bluetooth® Smart sensors) Strava features (Group LiveTrack, live segments) YES Time/distance alerts (triggers alarm when you reach goal) YES Golfing Features Stat tracking YES, (strokes, putts per round, greens and fairways hit and average shot distance) Swimming Features Drill logging YES Pool swim workouts YES Preloaded swim profiles Pool Swimming Stroke type identification (eg. freestyle) YES, (freestyle, backstroke, breaststroke, butterfly) Swim efficiency (SWOLF) YES Pool swim metrics YES, (lengths, distance, pace, stroke count/rate, calories) Activity Tracking Features Calories burned YES Distance traveled YES Floors climbed YES Intensity minutes YES Move IQ™ YES TrueUp™ YES Step counter YES Auto goal YES, (learns your activity level and assigns a daily step goal) Move bar YES, (displays on device after a period of inactivity; walk for a couple of minutes to reset it) Sleep monitoring YES, (monitors total sleep and periods of movement or restful sleep) Outdoor Features TracBack® YES