Forerunner 255 from Garmin
Forerunner 255 from Garmin
Forerunner 255 from Garmin
Forerunner 255 from Garmin
Forerunner 255 from Garmin
Forerunner 255 from Garmin
Forerunner 255 from Garmin
Forerunner 255 from Garmin
Forerunner 255 from Garmin
Forerunner 255 from Garmin
Forerunner 255 from Garmin
Forerunner 255 from Garmin
Forerunner 255 from Garmin
Forerunner 255 from Garmin
Forerunner 255 from Garmin
Forerunner 255 from Garmin

Forerunner 255 from Garmin

800-0439-A


Sale price $349.99 Save $-349.99
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Run at a Higher Level


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You’re making strides. Now, let’s take the next step. Get the training and recovery insights you’ll need to notch your best time yet.

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.

 

STR3AMUP! PC tool for streaming biometrics No
Wheelchair mode No
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 No
APNEA mode No
Load ratio Yes
Ground contact time and balance Yes
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)
View images from notifications on watch (Android™ only) Yes
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
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 alerts (displays on device after a period of inactivity) No
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
Team sports

Basketball, Volleyball, Field Hockey, Ice Hockey, Football/Soccer, American Football, Lacrosse, Rugby, Ultimate Disc, Cricket, Softball, Baseball

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
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
Outdoor running Running, Outdoor Track Running, Trail Running, Ultra Running
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
Nap detection  Yes
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
Virtual starting line 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
Built-in mapping No
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
Snow & winter

Skiing, Snowboarding, XC Classic Skiing

LED flashlight No
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
Other activity profiles

Inline skating

Auto Pause® Yes
Running dynamics Yes
Battery life (smartwatch mode) Up to 14 days
Gaming Activity No
Full vector map No
Body Battery™ energy monitor Yes
BLUETOOTH phone calling and voice assistant support No
Accelerometer Yes
Recovery time Yes
On the Water Stand Up Paddleboarding, Rowing
Custom dive data screens No
Drill logging (pool swim only) Yes
Preloaded with 43,000 courses worldwide No
Track timer No
Multisport

Triathlon

Strap material

silicone

Jet lag adviser No
Wearable trolling motor remote No
Race App No
Round timer/odometer No
Smart trainer control Yes
Heat and altitude acclimation No
Make calls and send texts via voice 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
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)
Solar Charging No
Foot pod capable Yes
Compatible with Vector™ and Rally™ (power meters) Yes
Phone-free text messaging No
Tournament legal No
Display type Sunlight-visible, transflective memory-in-pixel (MIP)
Incident detection alert on phone for wearables Yes
Race an activity Yes
Finish time Yes
Elevation profile Yes
PlaysLike distance No
Aviation Alerts No
Virtual Partner Yes
VO2 Max (Run) Yes
Relaxation reminders Yes
Reminder alerts No
Wind meter compatible No
Racket sports

Tennis, Pickleball, Badminton, Squash, Table Tennis, Padel, Platform Tennis, Racquetball

Race glance/widget Yes
Training load Yes
Touchscreen No
Chronograph No
Gym Strength, HIIT, Cardio, Elliptical Training, Stair Stepping, Floor Climbing, Indoor Rowing
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
Garmin ECG App No
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 forecasts 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 solver No
On-screen workout muscle maps Yes
Auto rest Yes
Basic rest timer (up from 0) (pool swim only) Yes
Outdoor recreation Hiking
TracBack® Yes
Advanced cycling dynamics No
Handicap scoring No
Primary benefit (Training Effect labels) Yes
Multi-band GPS Yes
HR zones Yes
Auto rest (pool swim only) Yes
Stat tracking (strokes, putts per round, greens and fairways hit) No
Connectivity Bluetooth®, ANT+®
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
Indoor running

Treadmill Running, Indoor Track Running, Virtual Running

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
In the ring Boxing, Mixed Martial Arts
Compatible with Varia™ lights Yes
Two-way voice calls No
Thermometer Yes
Skin temperature No
Red shift mode No
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
Swim

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
Water rating 5 ATM
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
Cycling Biking, Mountain Biking, eBiking, eMountain Biking, Indoor Biking
HIIT workouts Yes
Future elevation plot Yes
Large font option 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
Fish forecast 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
Wellness Walking, Pilates, Yoga

Physical & Performance

Display Size 1.3" (33 mm) diameter
Battery life

Smartwatch mode: Up to 14 days
GPS-Only GNSS mode: Up to 30 hours
All-Systems GNSS mode: Up to 25 hours
All-Systems GNSS mode plus Multi-Band: Up to 16 hours
See Details

Display resolution 260 x 260 pixels
GPS Yes
Weight

49 g

Memory/History 4GB



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