Product #: 010-02641-20
UPC #: 753759279912

Garnim Forerunner® 255 Music, Black - Running

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Sale price$399.99
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Specs Highlights:
Weight
49 g

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.

  • Get an overview of your sleep, HRV status and daily workout with morning report.
  • Charge less, train more with up to 14 days of battery life in smartwatch mode and up to 30 hours in GPS mode.
  • Push your limits with a built-in triathlon feature and 30+ activity profiles.
  • Plan your strategy with daily suggested workouts, course details and more on the race widget.
  • 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
  • Charge/data cable
  • Documentation

 

READY FOR THE LONG RUN

Get an uninterrupted picture of your daily health and nightly sleep with up to 14 days of battery life in smartwatch mode and up to 30 hours in GPS mode.

(ALMOST) AS LIGHT AS A FEATHER

With its sleek design and 1.7 oz weight, you’ll almost forget you’re wearing Forerunner 255 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.

MORNING REPORT

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

Tap into 30+ built-in activities, including the triathlon and open-water swimming profiles — new to the Forerunner 255 series. For races and brick workouts, transition to the next activity with a single button press.

RACE WIDGET

Get ready for your next race with training tips, personalized 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.

TRIATHLON AND MULTISPORT PROFILES

Switch between sports with one press by using built-in profiles for triathlons, duathlons, brick workouts and swimruns. Or, create your own custom multisport profiles.

WRIST-BASED RUNNING POWER

See how much power you’re applying to the trail or the road so you can manage your effort and fine-tune your training. No accessory required.

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

To help you plan your race day strategy, this feature offers GPS-based pace guidance for a selected course or distance, so you can tailor your efforts to what’s ahead.

GRADE-ADJUSTED PACE

Don’t run out of steam before the activity is over. Understand how to adjust your pace over varying terrain to perform according to your plan.

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

See your training history, and compare the intensity of your recent workouts to the optimal range to help improve your fitness.

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 and heart rate for a real-time assessment of your current ability to perform.

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.

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.

TRACK RUNNING

Ready for some speedwork? Input your lane on the built-in track run activity to record accurate lap distances and see your distances in meters.

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.

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.

WRIST-BASED HEART RATE

The watch constantly samples your heart rate2 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 rest 2.

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 Ox3 and respiration, alongside detailed insights for improved sleep quality.

PULSE OX SENSOR

This wrist-based Pulse Ox sensor3 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.

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.

HEALTH SNAPSHOT FEATURE

Log a 2-minute session to record key stats, including heart rate2, heart rate variability, Pulse Ox3, respiration and stress. Then generate a report with those stats to share via the Garmin Connect app on your compatible smartphone.

 

SATIQ TECHNOLOGY

Multi-band GNSS with SatIQ technology ensures the best positioning accuracy in any environment while also optimizing the device’s battery life.

MUSIC ON YOUR WRIST

Download up to 500 songs plus playlists from your Spotify, Deezer or Amazon Music accounts (subscription required).

GARMIN PAY CONTACTLESS PAYMENTS

Breeze through checkout lines with Garmin Pay contactless payments1 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 and widgets from the Connect IQ Store app downloaded on your compatible smartphone.

Features

STR3AMUP! PC tool for streaming biometrics No
Multi-frequency Positioning Yes
3-axis compass with HSI (horizontal situation indicator) No
Touch and/or button lock Yes
Preloaded ski resort maps No
Wind speed and direction (requires connection to Garmin Golf app) No
Live Event Sharing Android™ Only
Sleep yes (advanced)
Battery saver (customizable low power watch) Yes
Swing Tempo No
Plays and controls watch music Yes
APNEA mode No
Ground contact time and balance yes (with compatible accessory)
Density altitude calculator No
Critical swim speed Yes
Training load focus Yes
Compatible with Varia Vision™ (head-mounted display) Yes
HR alerts Yes
Training effect (anaerobic) Yes
Abnormal heart rate alerts yes (high and low)
Easy break planning No
Vertical speed Yes
Lactate threshold yes (with compatible accessory)
Workout tutorials No
Number of transmitters supported No
MTB Grit & Flow No
Customizable data pages Yes
Configurable lap alerts Yes
Incident Detection during select activities Yes
Physio TrueUp Yes
Custom alerts Yes
NEXRAD on moving map No
Back to start Yes
Vertical oscillation and ratio yes (with compatible accessory)
Altimeter with adjustable baro setting No
Physical size

45.6 x 45.6 x 12.9 (mm)

Fits wrists with a circumference of 130-205 mm

Move bar (displays on device after a period of inactivity; walk for a couple of minutes to reset it) Yes
Live Delta Time No
Automatic altitude adjustment No
Bezel Material

fiber-reinforced polymer

Hazards and course targets No
Truck driver workouts No
TruSwing™ compatible No
UltraTrac mode Yes
VO2 Max (Trail Run) Yes
Up Ahead Yes
Preloaded race tracks No
Pulse Ox Blood Oxygen Saturation Monitor Yes
Relaxation breathing timer Yes
% HR max Yes
In Case of Emergency (I.C.E.) No
Gas time remaining No
Water rating 5 ATM
Subwave™ Support No
Audible alerts No
Color display Yes
Multiple bike profiles No
Rest timer Yes
Wrist-based heart rate (constant, every second) Yes
Find My Phone Yes
PrePass weigh station notifications and bypass decisions No
Stride length (real time) yes (with compatible accessory)
Bike lap and lap maximum power (with power sensor) Yes
Open-water swim metrics (distance, pace, stroke count/rate, stroke distance, swim efficiency (SWOLF), calories) Yes
Training effect Yes
Spectator messaging No
Advanced workouts Yes
Charging method Garmin proprietary plug charger
Trendline™ Popularity Routing No
Strava Live Segments No
Boundary enter/exit No
Training readiness No
Timer Yes
Courses Yes
Respiration rate (during exercise) yes (with compatible accessory)
Wirelessly receive flight plans from Garmin Pilot™ No
Intensity minutes Yes
Interval training Yes
MOS & Meteogram No
Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories) Yes
Pairs with Garmin Connect™ Mobile Yes
Touchscreen No
Virtual starting line No
Preloaded topographical maps No
Sun and moon information Yes
Automatically saves dive entry and exit locations No
HRV stress test (measures your heart rate variability while standing still, for 3 minutes, to provide you with an estimated stress level; the scale of this is 1 to 100; low scores indicate lower stress levels) No
Sight 'N Go No
Location tracking No
Pulse Ox blood oxygen saturation yes (spot-check, and optional all-day acclimation and in sleep)
Projected waypoint Yes
Bread crumb trail in real time Yes
Customizable activity profiles Yes
Auto start/end dive No
Reference point No
SatIQ™ Technology Yes
Connect IQ™ (downloadable watch faces, data fields, widgets and apps) Yes
Cadence (provides real-time number of steps per minute) Yes
Controls smartphone music Yes
Power meter compatible Yes
LED flashlight No
Improved recovery time Yes
APNEA hunt mode No
60-minute activity goal No
Manual multisport activities Yes
Chores No
Moving Map with aviation airports, navaids, roads, bodies of water and more No
Point-to-point navigation Yes
Anchor Alarm No
Gauge mode No
PacePro™ Pacing Strategies Yes
Course- and weather-specific race predictor Yes
Yardage to layups/doglegs No
TAF (Terminal Aerodrome Forecast) No
Auto Pause® Yes
Running dynamics yes (with compatible accessory)
Esports Activity No
Full vector map No
Body Battery™ energy monitor Yes
BLUETOOTH phone calling and voice assistant support No
Accelerometer Yes
Recovery time Yes
Custom dive data screens No
Drill logging (pool swim only) Yes
Preloaded with 42,000 courses worldwide No
Track timer No
Strap material

silicone

Jet lag advisor No
Race App No
Round timer/odometer No
Smart trainer control Yes
Heat and altitude acclimation No
Connected GPS No
Performance condition Yes
Galileo Yes
Distance traveled Yes
Manual lap Yes
GPS-based distance, time and pace Yes
Text messaging No
Realtime stamina No
Running power Yes
Nitrox support No
Assistance Yes
Race predictor Yes
Stealth Mode No
Pairs with Garmin Golf app No
Auto lap splits No
"Repeat on" rest timer (pool swim only) Yes
Pilates workouts Yes
GPS coordinates No
Lap Time Repeatability Score (LTR) No
Air integration No
Audio prompts Yes
Auto CourseView updates No
Downloadable training plans Yes
Stocks yes (optional Connect IQ app)
Measures shot distance (calculates exact yardage for shots from anywhere on course) No
Run/Walk/Stand detection Yes
Closed Circuit Rebreather (CCR) No
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, HRM-Pro or HRM-Pro Plus)
Compatible with Varia™ radar (rear-facing radar) Yes
Task timers (2, 5, 10, 15, 20 and 30 minutes) No
Pool swim workouts Yes
Assistance Plus No
Multi-gas mode No
Music storage Yes
Race an Activity Yes
Kill switch No
Hot keys No
Single-gas mode No
Activity history on watch Yes
On-screen workout animations Yes
Auto max HR Yes
Daily suggested workouts yes (7 days)
Foot pod capable Yes
Compatible with Vector™ and Rally™ (power meters) Yes
Phone-free text messaging No
Tournament legal No
Incident detection alert on phone for wearables Yes
Race an activity Yes
Finish time Yes
Elevation profile Yes
Automatic sync (automatically transfers data to Garmin Connect) No
PlaysLike distance No
Aviation Alerts No
Virtual Partner Yes
VO2 Max (Run) Yes
Relaxation reminders Yes
Reminder alerts No
Wind meter compatible No
Race glance/widget Yes
Training load Yes
Chronograph No
Available gym activity profiles Strength, HIIT, Cardio and Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing, Pilates, Yoga
Ambient light sensor No
Touch-targeting (touch target on display to see the distance to any point) No
Stroke type detection (freestyle, backstroke, breaststroke, butterfly) (pool swim only) Yes
In-flight Pulse Ox No
Yardage to F/M/B (distance to front, middle and back of green) No
Calendar Yes
Barometric altimeter Yes
Unlock new step icons No
On-device Connect IQ™ Store Yes
Weather Yes
Auto Lap® Yes
Sunrise/sunset times Yes
Pacing alerts (pool swim only) Yes
Floors climbed Yes
Respiration rate (24x7) Yes
Gas consumption rate No
% HRR Yes
Ballistics calculator No
On-screen workout muscle maps Yes
Auto rest Yes
Basic rest timer (up from 0) (pool swim only) Yes
Available outdoor recreation profiles

Hiking, Skiing, Snowboarding, XC Classic Skiing, Stand Up Paddleboarding, Rowing

TracBack® Yes
Advanced cycling dynamics No
Handicap scoring No
Primary benefit (Training Effect labels) Yes
HR zones Yes
Auto rest (pool swim only) Yes
Stat tracking (strokes, putts per round, greens and fairways hit) No
Connectivity Bluetooth®, ANT+®, Wi-Fi®
Improved interval (includes open repeats, intervals data page, rest screen and auto detection) Yes
Sleep score and insights Yes
Custom targets No
Downloadable cartography support No
Available run profiles

Running, Outdoor Track Running, Treadmill Running, Indoor Track Running, Trail Running, Virtual Running, Ultra Running

Run workouts Yes
Stopwatch Yes
Worldwide airport database(s) No
Waypoint information page No
GPS speed and distance Yes
Round-trip course creator (running/cycling) No
Area calculation No
Find My Watch Yes
Automatic club tracking compatible (requires accessory) No
Connext avionics connectivity No
Preloaded road and trail maps No
Unified training status Yes
VIRB® Remote Yes
Smartphone compatibility iPhone® and Android™
Dual grid coordinates No
HRM running pace and distance Yes
Expedition GPS Activity No
TrueUp™ Yes
Morning report Yes
Multiple time zones with Zulu/UTC No
Trimix support No
Compatible with Varia™ lights Yes
Two-way voice calls No
Thermometer Yes
Hydration yes (in Garmin Connect™ and optional Connect IQ™ widget)
Alarm clock Yes
Group LiveTrack No
Gyroscope Yes
Underwater wrist-based heart rate Yes
Countdown start (pool swim only) Yes
Health snapshot Yes
ClimbPro™ Ascent Planner No
Truck plaza loyalty programs No
Night vision mode No
Available swim profiles

Pool Swimming, Open Water Swimming

Tempo Training No
Move IQ™ Yes
Speed and cadence sensor support (w/sensor) Yes
Do not disturb/School mode No
Garmin Elevate™ wrist heart rate monitor Yes
Tides No
GLONASS Yes
Smart Notifications Yes
Garmin Pay™ Yes
HRV status Yes
Automatic daylight saving time Yes
Yoga workouts Yes
Depth sensor No
Time/date yes
Sync dive log to Garmin Dive™ Mobile app No
Rewards (coins) No
Virtual caddie No
Calories burned Yes
Toe-to-Toe™ Challenges app yes (optional Connect IQ Toe-to-Toe™ Challenges app)
Garmin Live Segments No
HR broadcast (broadcasts HR data over ANT+™ to paired devices) Yes
Fly activity emergency mode No
Total ascent/descent Yes
Auto multisport activities Yes
Last race summary No
Cycle Map (routable cycling-specific street map) No
PinPointer No
Step counter Yes
METAR (Meteorological Aerodrome Report) No
Quick Release bands yes (22 mm, Industry standard)
Trail run auto climb Yes
Barometric trend indicator with Storm Alert Yes
Automatic rep counting Yes
LiveTrack Yes
HR calories Yes
Grade-adjusted pace Yes
Tides No
Time and distance alerts Yes
Garmin Connect™ Challenges app yes (optional Connect IQ app)
XERO™ Locations No
All-day stress Yes
Tack assist mode No
Compatible with dēzl™ OTR truck navigators No
Worldwide NAVAID and Intersection database(s) No
Available cycling profiles

Biking, Indoor Biking, Mountain Biking, eBiking, eMountain Biking

HIIT workouts Yes
Future elevation plot Yes
Games No
Orienteering No
Text response/reject phone call with text (Android™ only) Yes
Around Me mode No
Realtime settings sync with Garmin Connect™ mobile Yes
Hunt/fish calendar No
Course guidance Yes
GPS Time Sync Yes
Countdown timer No
Auto scroll Yes
Analog hands No
Compass Yes
Lens Material

Corning® Gorilla® Glass 3

Green View with manual pin position No
Strength workouts Yes
Distance to destination Yes
Voice messaging No
Women's health yes (in Garmin Connect™ and optional Connect IQ™ widget)
Training status yes (improved)
Pool swim metrics (lengths, distance, pace, stroke count, swim efficiency (SWOLF), calories) Yes
Daily resting heart rate Yes
Auto goal (learns your activity level and assigns a daily step goal) Yes
Garmin AutoShot™ No
Fitness age Yes
FTP (Functional Threshold Power) yes (with compatible accessory)
Dive ascent/descent rate indicator No
Built-in barometer and tide tables No
Display Size 1.3" (33 mm) diameter
Display Type sunlight-visible, transflective memory-in-pixel (MIP)
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
Display resolution 260 x 260 pixels
GPS Yes
Weight 49 g
Memory/History 4 GB

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