Garmin Forerunner® 255 Music, Black - Running

Name: Garmin Forerunner® 255 Music, Black - Running
Brand: Garmin
SKU: 010-02641-20
Price: 399.99 USD
Availability: InStock

Product #: 010-02641-20

UPC #: 753759279912

Authorized Dealer

Garmin Forerunner® 255 Music, Black - Running-Optics Force

Roll over image to zoom in Click on image to zoom

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