Garmin · 2019
Forerunner® 245 MusicSize, Dimensions & Wrist Fit
The Garmin Forerunner® 245 Music sits best on flat wrist widths of about 45–60mm (≈ 12.0–16.0cm wrist circumference). Adjust the slider below to check your wrist.
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The Forerunner® 245 Music in short
The figures that decide whether this watch suits you, pulled out of the full specification sheet further down.
- Rated for 24 hours of use per charge.
- Water rated to 5 ATM.
- 38.5g on the wrist. Lighter than 68% of the 42mm watches we have weights for.
- 1.2" (30.4 mm) diameter Sunlight-visible, transflective memory-in-pixel (MIP) display.
- Corning® Gorilla® Glass 3 case, Corning® Gorilla® Glass 3 glass.
Does the Forerunner® 245 Music fit your wrist?
Drag the slider to your wrist width and see the Forerunner® 245 Music overlaid at true scale. Lug-to-lug — not case diameter — decides whether a watch overhangs your wrist.
Happy with the fit? Check current availability for the Forerunner® 245 Music.
Check offer2D Dimension Schematics
The Forerunner® 245 Music drawn to scale — from above, and in profile against the wrist.
- Garmin Forerunner® 245 Music42.3mm · 12.2mm thick
3D preview
Garmin Forerunner® 245 Music on a wrist
On an arm sized to your own wrist — the view a product photo never gives you.
Shapes are built from published measurements, not manufacturer 3D models — accurate proportions, generic dial.
Forerunner® 245 Music battery life
The runtime the manufacturer publishes for everyday use.
- Smartwatch24 hours
How the Forerunner® 245 Music ranks on battery
Against the 268 Garmin watches in our database, ranked on each figure Garmin publishes.
- Everyday use7 days#208 of 257
- GPS tracking24 hours#132 of 233
Forerunner® 245 Music specifications
The figures that decide a purchase, followed by every line Garmin publishes.
- Battery life
- Smartwatch Mode: Up to 7 daysGPS mode with music: Up to 6 hoursGPS mode without music: Up to 24 hours
- Display
- 1.2" (30.4 mm) diameter
- Resolution
- 240 x 240 pixels
- Water rating
- 5 ATM
- Bezel
- fiber-reinforced polymer
- Glass
- Corning® Gorilla® Glass 3
- Strap
- silicone
- Storage
- 4 GB
- Charging
- Garmin proprietary plug charger
Full specification sheet
151 published lines across 18 groups, unedited
Overview
- Family
- Garmin
General
- Battery life
- Smartwatch Mode: Up to 7 daysGPS mode with music: Up to 6 hoursGPS mode without music: Up to 24 hours
- Display Size
- 1.2" (30.4 mm) diameter
- Color display
- Lens Material
- Corning® Gorilla® Glass 3
- Bezel Material
- fiber-reinforced polymer
- Memory/History
- 4 GB
- Strap material
- silicone
- Charging method
- Garmin proprietary plug charger
- Display resolution
- 240 x 240 pixels
- Quick Release bands
- yes (20 mm, Industry standard)
Sensors
- GPS
- Compass
- GLONASS
- Galileo
- Thermometer
- yes (tempe™ sensor required)
- Accelerometer
- Pulse Ox Blood Oxygen Saturation Monitor
- Garmin Elevate™ wrist heart rate monitor
Product Info
- Main SKU
- 010-02120-22
- Product ID
- 646690
- Product Name
- Forerunner® 245 Music
- Release Date
- 4/30/2019
- Product Variation
- Aqua
Clock Features
- Timer
- Stopwatch
- Time/date
- Alarm clock
- GPS Time Sync
- Sunrise/sunset times
- Automatic daylight saving time
Cycling Features
- Courses
- Race an activity
- Compatible with Varia™ lights
- Speed and cadence sensor support (w/sensor)
- Compatible with Varia™ radar (rear-facing radar)
- Compatible with Varia Vision™ (head-mounted display)
- Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories)
Running Features
- Run workouts
- Race predictor
- Foot pod capable
- Running dynamics
- yes (with compatible accessory)
- Performance condition
- Run/Walk/Stand detection
- Stride length (real time)
- yes (with compatible accessory)
- PacePro™ Pacing Strategies
- Vertical oscillation and ratio
- yes (with compatible accessory)
- Ground contact time and balance
- yes (with compatible accessory)
- GPS-based distance, time and pace
- Cadence (provides real-time number of steps per minute)
What You'll Love
- Display type
- Sunlight-visible, transflective memory-in-pixel (MIP)
- Water rating
- 5 ATM
- Music storage
- Training status
- Pulse Ox blood oxygen
- yes (spot-check and optionally in sleep)
- Battery life (smartwatch mode)
- Up to 7 days
Activity Profiles
- Gym
- Strength, Cardio, Elliptical Training, Stair Stepping, Indoor Rowing
- Swim
- Pool Swimming
- Cycling
- Biking, Indoor Biking
- Wellness
- Walking, Yoga
- Indoor running
- Treadmill Running, Indoor Track Running, Virtual Running
- Outdoor running
- Running, Outdoor Track Running, Trail Running
Swimming Features
- Pool swim workouts
- Auto rest (pool swim only)
- Drill logging (pool swim only)
- Underwater wrist-based heart rate
- "Repeat on" rest timer (pool swim only)
- Basic rest timer (up from 0) (pool swim only)
- Stroke type detection (freestyle, backstroke, breaststroke, butterfly) (pool swim only)
- Pool swim metrics (lengths, distance, pace, stroke count, swim efficiency (SWOLF), calories)
Outdoor Recreation
- TracBack®
- Back to start
- UltraTrac mode
- GPS coordinates
- Distance to destination
- Point-to-point navigation
- Bread crumb trail in real time
Daily Smart Features
- Calendar
- Connectivity
- Bluetooth®, ANT+®, Wi-Fi®
- Find My Phone
- Find My Watch
- VIRB® Remote
- Weather forecasts
- Smart Notifications
- Smartphone compatibility
- iPhone® and Android™
- Controls smartphone music
- Plays and controls watch music
- Pairs with Garmin Connect™ Mobile
- Text response/reject phone call with text (Android™ only)
- Connect IQ™ (downloadable watch faces, data fields and apps)
Activity Tracking Features
- TrueUp™
- Move IQ™
- Step counter
- Calories burned
- Distance traveled
- Intensity minutes
- Automatic rep counting
- Garmin Connect™ Challenges app
- yes (optional Connect IQ app)
- Move alerts (displays on device after a period of inactivity)
- Auto goal (learns your activity level and assigns a daily step goal)
Workout and Training Plans
- Cardio workouts
- Strength workouts
Health & Wellness Monitoring
- Sleep
- yes (advanced)
- Hydration
- yes (in Garmin Connect™ and optional Connect IQ™ widget)
- Fitness age
- yes (in app)
- All-day stress
- Women's health
- yes (in Garmin Connect™ and optional Connect IQ™ widget)
- Resting heart rate
- Abnormal heart rate alerts
- yes (high and low)
- Relaxation breathing timer
- Body Battery™ energy monitor
- Wrist-based heart rate (constant, every second)
Safety and Tracking Features
- Assistance
- Live Event Sharing
- Android™ Only
- Incident Detection during select activities
- Incident detection alert on phone for wearables
Kid Activity Tracking Features
- Toe-to-Toe™ Challenges app
- yes (optional Connect IQ Toe-to-Toe™ Challenges app)
Training, Planning and Analysis Features
- % HRR
- % HR max
- HR zones
- HR alerts
- Manual lap
- Auto max HR
- Auto scroll
- Finish time
- HR calories
- Voice alerts
- Custom alerts
- Physio TrueUp
- Recovery time
- Training load
- VO2 Max (Run)
- Course guidance
- Training effect
- Virtual Partner
- Race an Activity
- Advanced workouts
- Interval training
- GPS speed and distance
- Improved recovery time
- Configurable lap alerts
- Customizable data pages
- Touch and/or button lock
- Activity history on watch
- Downloadable training plans
- Training effect (anaerobic)
- HRM running pace and distance
- Customizable activity profiles
- Auto Pause® automatic timer halt
- Auto Lap® interval tracking feature
- HR broadcast (broadcasts HR data over ANT+® to paired devices)
- yes (using ANT+ or BLE)
Alternatives to the Forerunner® 245 Music
Watches that cover a similar amount of wrist, with the measurements that separate them.
Garmin
Forerunner® 245
- Width
- 42.3mm
- Thick
- 12.2mm
- Weight
- 38.5g
Garmin
Vivoactive 6
- Width
- 42.2mm
- Thick
- 10.9mm
- Weight
- 36g
Garmin
Vivoactive 5
- Width
- 42.2mm
- Thick
- 11.1mm
- Weight
- 36g
Garmin
Forerunner® 570 - 42mm
- Width
- 42.4mm
- Thick
- 12.9mm
- Weight
- 42g
Garmin
Forerunner® 645
- Width
- 42.5mm
- Thick
- 13.5mm
- Weight
- 41.8g
Garmin
Forerunner® 645 Music
- Width
- 42.5mm
- Thick
- 13.5mm
- Weight
- 42.2g
Forerunner® 245 Music — Frequently Asked Questions
Will the Garmin Forerunner® 245 Music fit my wrist?
The Garmin Forerunner® 245 Music looks balanced on flat wrist widths of roughly 45–60mm (about 12.0–16.0cm circumference). Drag the slider above to check it against your own measurement.
How long does the Garmin Forerunner® 245 Music battery last?
Garmin rates it at 24 hours per charge in everyday use.
How does the Garmin Forerunner® 245 Music battery compare with other Garmin watches?
At 7 days in everyday use it ranks #208 of the 257 Garmin watches in our database — below the middle of the range. The full ranking, including GPS and power-saving figures, is on our Garmin battery life comparison.
Is the Garmin Forerunner® 245 Music thick for a 42mm watch?
At 12.2mm, middle of the pack for thickness at this width. Thickness, not case width, is what decides whether a watch catches on a shirt cuff.
What other watches are the same size as the Garmin Forerunner® 245 Music?
Certina DS Action Chrono PVD / Carbon / Bracelet, Omega Speedmaster Professional Moonwatch 3861 Moonshine Gold / Black Lacquer, TAG Heuer Carrera Chronograph Seafarer Stainless Steel / Silver, Huawei Watch 5 - 42mm all sit within half a millimetre of the Garmin Forerunner® 245 Music's 42.3mm case, so they cover the same amount of wrist.
