Garmin
Item no. 010-02641-21

Discontinued

Forerunner® 255 Music

Garmin Forerunner® 255 Music - Whitestone See more

$399.99

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Overview
FEATURES
Specifications
DOWNLOADS

TUNE YOUR TRAINING

Add a beat to your step. Get the training and recovery insights you need to run at a higher level — plus music to motivate you along the way.

Charge less, train more with up to 12 days of battery life in smartwatch mode and up to 26 hours in GPS mode.

Plan your strategy with daily suggested workouts, course details and more on the race widget.

Get an overview of your sleep, HRV status and daily workout with morning report.

Push your limits with a built-in triathlon feature and 30+ activity profiles.

Utilize a full suite of advanced metrics and training tools to reach your goals.

Pay for your post-workout coffee with Garmin Pay^™ contactless payments¹ — and listen to music on the go.

In the Box:

Forerunner 255 Music
Charging/data cable
Documentation

READY FOR THE LONG RUN

Get an uninterrupted picture of your daily health and nightly sleep with up to 12 days of battery life in smartwatch mode and up to 26 hours in GPS mode.

♦

(ALMOST) AS LIGHT AS A FEATHER

With its sleek design and 1.4 oz weight, you’ll almost forget you’re wearing Forerunner 255S Music — even when you’re asleep.

♦

SWEAT-READY MATERIALS

Featuring easy-to-use buttons and a silicone band, this watch is ready to wear — and tear — with durable Corning^® Gorilla^® Glass 3.

Light on the wrist,
not on features.

MORNING REPORT

Receive an overview of your sleep, recovery and training outlook as soon as you wake up — alongside HRV status, training readiness and weather. You can even customize your report to show what you want to see.

HRV STATUS

Gain a deeper understanding of your overall health, recovery and training performance through heart rate variability while you sleep, based on technology developed by our Firstbeat Analytics^™ team.

BUILT-IN SPORTS APPS

Switch up your workouts with activity profiles for cycling, triathlon, pool and open-water swimming, track running and more. For races and brick workouts, switch sports with a single button press.

RACE WIDGET

Get ready for your next race with training tips, daily suggested workouts and completion time predictions based on course details, weather and performance.

DAILY SUGGESTED WORKOUTS

View your entire week of daily suggested workouts, which adapt after every run to match your performance and recovery as well as the races coming up in your Garmin Connect^™ smartphone app calendar.

GARMIN COACH

Free adaptive training plans include 5K, 10K, and half-marathon programs, featuring guidance from expert coaches that adapt to you and your goals.

RUNNING POWER

Get a continuous measurement on your wrist of how much power you’re applying to the road as you run when using a Running Dynamics Pod or HRM-Pro^™ monitor.

RECOVERY TIME

Know how long to recover before your next high-effort workout based on your latest training as well as overall stress, sleep and daily activities outside of workouts.

PACEPRO™ FEATURE

The PacePro feature helps keep you on pace with grade-adjusted guidance as you run a course.

TRAINING STATUS

Using new indicators such as HRV status, your recent exercise history and performance, get an easy insight into your overall effort — and whether you’re training productively, peaking or strained.

ACUTE LOAD

Compare the intensity of your recent workouts to the optimal range to improve your fitness and training history.

RUNNING DYNAMICS

When using a Running Dynamics Pod or HRM-Pro monitor, the Forerunner 255 Music watch measures crucial running metrics such as cadence, stride length, ground contact time and balance, and more — while comparing to others in the Garmin Connect app.

TRAINING EFFECT

See how your workouts influence your endurance, speed and power with aerobic and anaerobic training effect feedback.

PERFORMANCE CONDITION

While you run, get an analysis of your pace, heart rate and heart rate variability for a real-time assessment of your current ability to perform.

VISUAL RACE PREDICTOR

Based on your running history and overall fitness level, get an estimate of what your pace could be for a 5K, 10K — or even a marathon. Plus, trend data highlights your training’s impact over time.

COURSES

Create or find existing courses in the Garmin Connect app, so you’ll never run out of places to run. Or plan one on other platforms such as Strava and Komoot, then automatically sync them to your Forerunner.

CROSS-TRAINING

Mix up your training with different types of workouts. Free HIIT, strength, cardio, yoga and Pilates workouts come preloaded on the watch, and you can download more from the Garmin Connect app.

A depth of wellness
insights.

WRIST-BASED HEART RATE

The watch constantly samples your heart rate⁴ with our latest-generation heart rate sensor and will alert you if it stays too high or too low while you’re at rest. It also helps gauge how hard you work during activities — even while swimming.

BODY BATTERY™ ENERGY MONITORING

Track your body’s energy levels so you can find the best times for activity and rest⁴.

IMPROVED SLEEP MONITORING AND SLEEP SCORE

Understand how your body is recovering — and get ready for training — with our improved sleep monitoring feature. After waking up, you’ll receive a sleep score, as well as breakdown of your sleep stages, Pulse Ox⁵ and respiration, alongside detailed insights for improved sleep quality.

PULSE OX SENSOR

This wrist-based Pulse Ox sensor⁵ monitors blood oxygen saturation levels to support advanced sleep monitoring and altitude acclimation.

WOMEN'S HEALTH TRACKING

Use the Garmin Connect app to track your menstrual cycle or pregnancy. Log symptoms, get exercise and nutrition education, and more. Even see and log details on your wrist with the Women’s Health Tracking app.

HEALTH SNAPSHOT™ FEATURE

Log a 2-minute session to record key stats, including heart rate⁴, heart rate variability, Pulse Ox⁵, respiration and stress. Then generate a report with those stats to share via the Garmin Connect app on your compatible smartphone.

INTENSITY MINUTES

Our intensity minutes feature tells you when during the day you earned them and during what activity.

STRESS TRACKING

Find out if you’re having a calm, balanced or stressful day. Relax reminders will even prompt you to do a short breathing activity when the watch detects that you’re feeling stressed.

Stay connected
at every step.

MULTI-BAND GNSS SUPPORT

Access multiple global navigation satellite systems, and get access to multiple frequencies sent by navigation satellites for improved accuracy in areas where GNSS signals are reflected, weak or typically don’t penetrate — giving you superior accuracy for how far and how fast you’ve run — even in challenging environments.

MUSIC ON YOUR WRIST

Download up to 2,000 songs plus playlists from your Spotify, Deezer or Amazon music accounts (subscription may be required).

GARMIN PAY CONTACTLESS PAYMENTS

Breeze through checkout lines with Garmin Pay contactless payments⁶ through participating providers.

SMART NOTIFICATIONS

Receive emails, texts and alerts right on your watch when paired with your Apple® or Android™ smartphone. You can even respond to texts if you have an Android phone.

SAFETY AND TRACKING FEATURES

If you feel unsafe or if your watch senses that an incident occurred, the Assistance and incident detection features⁴ send your location to emergency contacts. Incident detection is enabled by default for select activity profiles only.

LIVETRACK FEATURE

Use LiveTrack to let friends and family follow your real-time location⁴ and even view your entire preplanned course. Rest assured that your loved ones know exactly where you’re running.

GARMIN CONNECT APP

See your health and fitness information, connect and compete with friends, sign up for challenges to earn badges and more — all in one free, zero-subscription app.

CONNECT IQ™ STORE

Download custom watch faces, add data fields, and get apps or widgets from the Connect IQ Store app downloaded on your compatible smartphone..

See your stats, and track your goals in the Garmin Connect™ app

Learn More

Run with the best. Follow us on the @GarminRunning Instagram® channel.

Customize your Garmin device using the Connect IQ Store

Learn More

QuickFit® accessory bands let you match your style with no tools required.

Learn More

¹View current supported country, payment network and issuing bank information

²Activity tracking accuracy

³This is not a medical device and is not intended for use in the diagnosis or monitoring of any medical condition; see Garmin.com/ataccuracy. Pulse Ox not available in all countries.

⁴When paired with your compatible smartphone. For safety and tracking feature requirements and limitations, see Garmin.com/safety.

SPOTIFY and the Spotify logo are among the registered trademarks of Spotify AB. Amazon Music and all related logos are trademarks of Amazon.com, Inc. or its affiliates. Apple is a trademark of Apple Inc., registered in the U.S. and other countries. Android is a trademark of Google LLC.

GENERAL

LENS MATERIAL
Corning® Gorilla® Glass 3

BEZEL MATERIAL
fiber-reinforced polymer

QUICK RELEASE BANDS yes (22 mm, Industry standard)
STRAP MATERIAL
silicone

PHYSICAL SIZE
45.6 x 45.6 x 12.9 (mm)

Fits wrists with a circumference of 130-205 mm

COLOR DISPLAY
DISPLAY SIZE 1.3" (33 mm) diameter
DISPLAY RESOLUTION 260 x 260 pixels
DISPLAY TYPE sunlight-visible, transflective memory-in-pixel (MIP)
WEIGHT
49 g

BATTERY LIFE
Smartwatch mode: Up to 14 days
GPS-only GNSS mode: Up to 30 hours
All-Systems GNSS mode with music: Up to 6.5 hours
All-Systems GNSS mode: Up to 25 hours
All-Systems GNSS mode plus Multi-Band:Up to 16 hours
See Details

WATER RATING 5 ATM
MEMORY/HISTORY 4 GB
CLOCK FEATURES

Time/date
GPS Time Sync
Automatic daylight saving time
Alarm clock
Timer
Stopwatch
Sunrise/sunset times
Health Monitoring

WRIST-BASED HEART RATE (CONSTANT, EVERY SECOND)
DAILY RESTING HEART RATE
ABNORMAL HEART RATE ALERTS yes (high and low)
RESPIRATION RATE (24X7)
PULSE OX BLOOD OXYGEN SATURATION yes (spot-check, and optional all-day acclimation and in sleep)
FITNESS AGE
BODY BATTERY™ ENERGY MONITOR
ALL-DAY STRESS
RELAXATION BREATHING TIMER
SLEEP yes (advanced)
SLEEP SCORE AND INSIGHTS
HYDRATION yes (in Garmin Connect™ and optional Connect IQ™ widget)
WOMEN'S HEALTH yes (in Garmin Connect™ and optional Connect IQ™ widget)
HEALTH SNAPSHOT
SENSORS

GPS
GLONASS
Galileo
Multi-frequency Positioning
Garmin Elevate™ wrist heart rate monitor
Barometric altimeter
Compass
Gyroscope
Accelerometer
Thermometer
Pulse Ox Blood Oxygen Saturation Monitor
DAILY SMART FEATURES

Connectivity Bluetooth®, ANT+®, Wi-Fi®
Connect IQ™ (downloadable watch faces, data fields, widgets and apps)
On-device Connect IQ™ Store
Smart Notifications
Text response/reject phone call with text (Android™ only)
Calendar
Weather
Realtime settings sync with Garmin Connect™ mobile
Battery saver (customizable low power watch)
Controls smartphone music
Plays and controls watch music
Music storage Up to 2000 songs
Find My Phone
Find My Watch
VIRB® Remote
Smartphone compatibility iPhone®, Android™
Pairs with Garmin Golf app
Pairs with Garmin Connect™ Mobile
Garmin Pay™
SAFETY AND TRACKING FEATURES

LiveTrack
Spectator messaging yes (with compatible smartphone)
Group LiveTrack
Live Event Sharing Android™ Only
Incident Detection during select activities
Assistance
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)
CALORIES BURNED
FLOORS CLIMBED
DISTANCE TRAVELED
INTENSITY MINUTES
TRUEUP™
MOVE IQ™
GARMIN CONNECT™ CHALLENGES APP yes (optional Connect IQ app)
GYM & FITNESS EQUIPMENT

AVAILABLE GYM ACTIVITY PROFILES Strength, HIIT, Cardio and Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing, Pilates, Yoga
CARDIO WORKOUTS
STRENGTH WORKOUTS
HIIT WORKOUTS
YOGA WORKOUTS
PILATES WORKOUTS
ON-SCREEN WORKOUT ANIMATIONS
ON-SCREEN WORKOUT MUSCLE MAPS
AUTOMATIC REP COUNTING
TRAINING, PLANNING AND ANALYSIS FEATURES

HR ZONES
HR ALERTS
HR CALORIES
% HR MAX
% HRR
RECOVERY TIME
AUTO MAX HR
MORNING REPORT
RACE GLANCE/WIDGET
HRV STATUS
HR BROADCAST (BROADCASTS HR DATA OVER ANT+™ TO PAIRED DEVICES)
RESPIRATION RATE (DURING EXERCISE) yes (with compatible accessory)
GPS SPEED AND DISTANCE
CUSTOMIZABLE DATA PAGES
CUSTOMIZABLE ACTIVITY PROFILES
AUTO PAUSE®
INTERVAL TRAINING
IMPROVED INTERVAL (INCLUDES OPEN REPEATS, INTERVALS DATA PAGE, REST SCREEN AND AUTO DETECTION)
ADVANCED WORKOUTS
DOWNLOADABLE TRAINING PLANS
AUTO LAP®
MANUAL LAP
REST TIMER
CONFIGURABLE LAP ALERTS
VO2 MAX (RUN)
VO2 MAX (TRAIL RUN)
TRAINING STATUS improved
TRAINING LOAD
TRAINING LOAD FOCUS
TRAINING EFFECT
TRAINING EFFECT (ANAEROBIC)
PRIMARY BENEFIT (TRAINING EFFECT LABELS)
IMPROVED RECOVERY TIME
DAILY SUGGESTED WORKOUTS yes (7 days)
CUSTOM ALERTS
AUDIO PROMPTS
FINISH TIME
VIRTUAL PARTNER
RACE AN ACTIVITY
AUTO MULTISPORT ACTIVITIES
MANUAL MULTISPORT ACTIVITIES
COURSE GUIDANCE
TOUCH AND/OR BUTTON LOCK
AUTO SCROLL
ACTIVITY HISTORY ON WATCH
PHYSIO TRUEUP
RUNNING FEATURES

AVAILABLE RUN PROFILES
Running, Outdoor Track Running, Treadmill Running, Indoor Track Running, Trail Running, Virtual Running, Ultra Running

GPS-BASED DISTANCE, TIME AND PACE
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 (REAL TIME) yes (with compatible accessory)
CADENCE (PROVIDES REAL-TIME NUMBER OF STEPS PER MINUTE)
RUNNING POWER yes (with compatible accessory)
PERFORMANCE CONDITION
LACTATE THRESHOLD yes (with compatible accessory)
PACEPRO™ PACING STRATEGIES
RUN WORKOUTS
RACE PREDICTOR
COURSE- AND WEATHER-SPECIFIC RACE PREDICTOR
FOOT POD CAPABLE
OUTDOOR RECREATION FEATURES

AVAILABLE OUTDOOR RECREATION PROFILES
Hiking, Skiing, Snowboarding, XC Classic Skiing, Stand Up Paddleboarding, Rowing

POINT-TO-POINT NAVIGATION
BREAD CRUMB TRAIL IN REAL TIME
BACK TO START
TRACBACK®
ULTRATRAC MODE
UP AHEAD
ELEVATION PROFILE
DISTANCE TO DESTINATION
BAROMETRIC TREND INDICATOR WITH STORM ALERT
TRAIL RUN AUTO CLIMB
VERTICAL SPEED
TOTAL ASCENT/DESCENT
FUTURE ELEVATION PLOT
PROJECTED WAYPOINT
SUN AND MOON INFORMATION
CYCLING FEATURES

AVAILABLE CYCLING PROFILES
Biking, Indoor Biking, Mountain Biking, eBiking, eMountain Biking

ALERTS (TRIGGERS ALARM WHEN YOU REACH GOALS INCLUDING TIME, DISTANCE, HEART RATE OR CALORIES)
COURSES
BIKE LAP AND LAP MAXIMUM POWER (WITH POWER SENSOR)
RACE AN ACTIVITY
FTP (FUNCTIONAL THRESHOLD POWER) yes (with compatible accessory)
COMPATIBLE WITH VECTOR™ AND RALLY™ (POWER METERS)
POWER METER COMPATIBLE
COMPATIBLE WITH VARIA VISION™ (HEAD-MOUNTED DISPLAY)
COMPATIBLE WITH VARIA™ RADAR (REAR-FACING RADAR)
COMPATIBLE WITH VARIA™ LIGHTS
SPEED AND CADENCE SENSOR SUPPORT (W/SENSOR)
SWIMMING FEATURES

AVAILABLE SWIM PROFILES
Pool Swimming, Open Water Swimming

OPEN-WATER SWIM METRICS (DISTANCE, PACE, STROKE COUNT/RATE, STROKE DISTANCE, SWIM EFFICIENCY (SWOLF), CALORIES)
POOL SWIM METRICS (LENGTHS, DISTANCE, PACE, STROKE COUNT, SWIM EFFICIENCY (SWOLF), CALORIES)
STROKE TYPE DETECTION (FREESTYLE, BACKSTROKE, BREASTSTROKE, BUTTERFLY) (POOL SWIM ONLY)
DRILL LOGGING (POOL SWIM ONLY)
BASIC REST TIMER (UP FROM 0) (POOL SWIM ONLY)
"REPEAT ON" REST TIMER (POOL SWIM ONLY)
AUTO REST (POOL SWIM ONLY)
TIME AND DISTANCE ALERTS
PACING ALERTS (POOL SWIM ONLY)
COUNTDOWN START (POOL SWIM ONLY)
POOL SWIM WORKOUTS
CRITICAL SWIM SPEED
UNDERWATER WRIST-BASED HEART RATE
HEART RATE FROM EXTERNAL HRM (REAL-TIME DURING RESTS, INTERVAL AND SESSION STATS DURING RESTS, AND AUTOMATIC HEART RATE DOWNLOAD POST-SWIM) yes (with HRM-Swim™ or HRM-Pro™)
Kid Activity Tracking Features

Toe-to-Toe™ Challenges app yes (optional Connect IQ app)
CONNECTIVITY

iPhone®, Android™
COUNTRY OF ORIGIN

Made in Taiwan. Cable made in Taiwan or China.
GIFT BOX DIMENSIONS

2.7” x 5.6” x 2.4” (6.9 cm x 14.1 cm x 6.2 cm)
GIFT BOX WEIGHT

5.3 oz (152 g)
UPC

753759279929