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garmin Forerunner55S gray
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garmin Forerunner55S gray
garmin Forerunner55S gray 4
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garmin Forerunner55S pink
garmin Forerunner55S pink 7
garmin Forerunner55S pink
garmin Forerunner55S pink 5
garmin Forerunner55S pink 8
garmin Forerunner55S pink
garmin Forerunner55S pink 4
garmin Forerunner55S gray
garmin Forerunner55S gray 7
garmin Forerunner55S gray
garmin Forerunner55S gray 5
garmin Forerunner55S gray 8
garmin Forerunner55S gray
garmin Forerunner55S gray 4

Garmin Forerunner 255S

Regular price
$349.99
Sale price
$349.99
Regular price
Shipping calculated at checkout.
100 In Stock

The Garmin Forerunner 255S from ZiahCare is designed to help runners achieve their best times with training and recovery insights. With up to 12 days of battery life in smartwatch mode and 30+ activity profiles, this watch is perfect for triathlons and daily workouts. Features include advanced metrics, adaptive training plans, and wrist-based monitoring for heart rate, sleep, and energy levels. The watch also offers Garmin Pay contactless payments, smart notifications, and safety features like incident detection and Livetrack. Enjoy an in-depth wellness experience with the Garmin Forerunner 255S.

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  • Fitness
  • Fitness Technology
  • Garmin
  • Smartwatches
General
Brand
The brand of the smartwatch
Garmin
Manufacturer
The company that manufactures the watch
Garmin Ltd.
Model Name
The model name of the smartwatch
Forerunner 255S
Product Type
Type or category of the product
GPS Running Smartwatch
Series Name
The series to which the model belongs
Forerunner
Categorization
Product Category
The general category of the product
Wearable Technology
Subcategory
A more specific category under the main one
Running Smartwatch
Department
The store or organizational department
Electronics
Industry
The industry sector the product belongs to
Consumer Electronics
Design and Build
Case Material
Material used for the watch case
Fiber-reinforced polymer
Bezel Material
Material used for the bezel
Fiber-reinforced polymer
Lens Material
Material of the watch lens
Corning Gorilla Glass 3
Band Material
Material of the watch band
Silicone
Interchangeable Bands
Ability to swap out bands
Yes (Quick Release bands, 18 mm, industry standard)
Band Width
The width of the watch band
0.71 inches (18 mm)
Case Dimensions (L x W x H)
Physical dimensions of the watch case
1.61 x 1.61 x 0.49 in (41 x 41 x 12.4 mm)
Case Shape
Shape of the watch case
Round
Water Resistance Rating
Depth to which the watch is water-resistant
5 ATM (up to 50 meters/164 feet)
Design Features
Special design aspects of the watch
Lightweight design, sweat-ready materials, easy-to-use buttons, durable Corning Gorilla Glass 3 lens
Display
Display Type
Type of display used
Sunlight-visible, transflective memory-in-pixel (MIP)
Display Size (Diagonal Measurement)
Size of the display screen
1.1 inches (27.5 mm)
Display Resolution
Pixel resolution of the display
218 x 218 pixels
Color Display
Whether the display is in color
Yes
Large Font Option
Supports large font option
Yes
Screen Shape
Shape of the display screen
Round
Customizable Watch Faces
Ability to change watch face designs
Yes (via Connect IQ Store)
Physical Attributes
Dimensions
Overall size dimensions
1.61 x 1.61 x 0.49 in (41 x 41 x 12.4 mm)
Weight
The weight of the smartwatch
1.4 oz (39 g)
Wrist Size Range
Fits wrists with specified circumference
4.33 to 6.89 inches (110 to 175 mm)
Shape
The physical shape
Round
User Interface
Button Operation
Physical buttons for control
Yes
Control Method
Control features using buttons
Button-based interface
Battery and Power
Battery Type
Type of battery used in the smartwatch
Internal rechargeable lithium-ion battery
Smartwatch Mode
Battery life in smartwatch mode
Up to 12 days
GPS-only GNSS Mode
Battery life in GPS-only GNSS mode
Up to 26 hours
All-Systems GNSS Mode
Battery life in All-Systems GNSS mode
Up to 20 hours
All-Systems GNSS + Multi-Band Mode
Battery life in All-Systems GNSS mode plus Multi-Band
Up to 13 hours
Charging Method
Charging method for the watch
Garmin proprietary plug charger
User-Replaceable Battery
Whether the battery can be replaced by the user
No
Sensors and Components
GPS
Built-in GPS receiver
Yes
GLONASS
Supports GLONASS satellites
Yes
Galileo
Supports Galileo satellites
Yes
SatIQ Technology
Uses SatIQ Technology for positioning
Yes
Garmin Elevate Wrist Heart Rate Monitor
Measures heart rate at the wrist
Yes
Pulse Ox Sensor
Measures blood oxygen saturation
Yes
Barometric Altimeter
Measures altitude changes
Yes
Compass
Built-in compass sensor
Yes
Gyroscope
Detects movement and orientation
Yes
Accelerometer
Measures acceleration
Yes
Thermometer
Measures ambient temperature
Yes
Connectivity
Bluetooth Connectivity
Supports Bluetooth connections
Yes
ANT+ Connectivity
Supports ANT+ connections
Yes
Wireless Protocols
Wireless protocols supported
Bluetooth®, ANT+®
Memory and Storage
Internal Memory Capacity
Amount of internal storage
4 GB
Smart Features
Smartphone Notifications
Receives smartphone notifications
Yes
Text Response/Reject Call with Text
Allows text response and call rejection with text
Yes (Android only)
View Images from Notifications
View images from notifications on watch
Yes (Android only)
Mobile Payments
Supports Garmin Pay contactless payments
Yes (Garmin Pay)
Music Controls
Controls smartphone music
Yes
Connect IQ Store Access
Downloadable watch faces, data fields, widgets and apps
Yes
Morning Report
Morning report feature
Yes
Calendar
Calendar integration
Yes
Weather Forecasts
Provides weather forecasts
Yes
Battery Saver Mode
Battery saver mode
Yes (customizable low power watch)
Find My Phone
Find My Phone feature
Yes
Find My Watch
Find My Watch feature
Yes
Garmin Messenger App Compatibility
Compatible with Garmin Messenger app
Yes
VIRB Remote
VIRB Remote control
Yes
Pairs with Garmin Connect Mobile
Pairs with Garmin Connect Mobile
Yes
Compatible Operating Systems
Smartphone compatibility
iPhone® and Android™
Stocks
Supports Stocks app
Yes (optional Connect IQ app)
Garmin Share
Garmin Share feature
Yes
Health and Fitness Tracking
Heart Rate Monitoring
Measures heart rate
Yes
Daily Resting Heart Rate
Tracks daily resting heart rate
Yes
Abnormal Heart Rate Alerts
Provides abnormal heart rate alerts
Yes (high and low)
Respiration Rate Monitoring
Monitors respiration rate 24x7
Yes
Fitness Age
Estimates fitness age
Yes
Body Battery Energy Monitor
Monitors energy levels
Yes
All-day Stress Monitoring
Tracks all-day stress
Yes
Relaxation Reminders
Provides relaxation reminders
Yes
Relaxation Breathing Timer
Provides relaxation breathing timer
Yes
Advanced Sleep Monitoring
Advanced sleep monitoring
Yes
Sleep Coach
Provides sleep coach feature
Yes
Nap Detection
Automatically detects naps
Yes
Hydration Tracking
Tracks hydration
Yes (in Garmin Connect and optional Connect IQ widget)
Women's Health Tracking
Women's health tracking
Yes (in Garmin Connect and optional Connect IQ widget)
Health Snapshot Feature
Generates health snapshot
Yes
Safety and Tracking Features
Incident Detection
Incident detection during select activities
Yes
Assistance
Assistance feature sends SOS message
Yes
LiveTrack
LiveTrack allows others to follow your activities
Yes
Live Event Sharing
Live Event Sharing
Yes (Android only)
Activity Tracking Features
Step Counter
Counts the number of steps taken
Yes
Auto Goal
Automatically adjusts daily step goal
Yes
Calories Burned
Estimates calories burned
Yes
Floors Climbed
Tracks floors climbed
Yes
Distance Traveled
Measures distance traveled
Yes
Intensity Minutes
Tracks intensity minutes
Yes
TrueUp
Syncs data across devices
Yes
Move IQ
Automatically detects activity type
Yes
Performance Metrics
VO2 Max Estimation
Provides VO2 Max estimate
Yes
Training Status
Tracks training status
Yes (improved)
Training Readiness
Offers training readiness score
Yes
Recovery Time
Provides recovery time advice
Yes
Training Effect
Provides training effect feedback
Yes
Training Load Focus
Provides training load focus
Yes
PacePro Technology
Includes PacePro pacing strategies
Yes
Grade-Adjusted Pace
Calculates grade-adjusted pace
Yes
Performance Condition
Provides performance condition
Yes
Race Predictor
Offers race predictor
Yes
Software and Compatibility
Compatible Operating Systems
Compatible operating systems
iPhone and Android
Companion App
Dedicated app for watch management
Garmin Connect Mobile app
Software Updates
Supports software updates
Yes
Third-Party App Compatibility
Supports third-party apps
Yes
Environmental Specifications
Water Rating
Water resistance rating
5 ATM (up to 50 meters/164 feet)
Hardware Specifications
Firmware Update Capability
Can receive firmware updates
Yes
Packaging and Shipping
Package Contents
Items included in the box
Garmin Forerunner 255S watch, charging/data cable, documentation
Warranty and Support
Warranty Type
Type of warranty offered
Manufacturer's Warranty
Warranty Period
Duration of the warranty
1 year
  •   Built-in triathlon feature

  •   Acute load workout comparison

  •   Adaptive cycling coaching

  •   Daily suggested workouts

  •   12 days battery in smartwatch mode

  •   26 hours battery in GPS mode

  •   30+ activity profiles

  •   Garmin Pay contactless payments

  •   Sleek 1.4 oz design

  •   Morning report on health stats

  •   30+ built-in sports apps

  •   Race adaptive training plans

  •   Recovery time advisor

  •   PacePro technology

  •   Grade-adjusted pace metrics

  •   Courses feature for running routes

  •   Track running accuracy

  •   Visual race predictor

  •   Cross-training options

  •   Wrist-based heart rate monitoring

  •   Body Battery energy monitoring

  •   Sleep coaching insights

  •   Pulse Ox sensor

  •   Womens health tracking

  •   Intensity minutes monitoring

  •   Stress tracking with reminders

  •   Health Snapshot feature

  •   Multi-band GPS with SatIQ

  •   Smart notifications

  •   Safety and incident detection

  •   LiveTrack for real-time location

  •   Integrates with Garmin Connect

  •   Connect IQ Store access

  •   HRV status for recovery insights

  •   Nap detection utility

  •   Performance condition analysis

  •   Training effect insights

  •   Wrist-based running power

  •   Training status indicators

  •   Wrist-based running dynamics

Garmin is a global leader in GPS navigation and wearable technology, dedicated to engineering products that enhance life outdoors and the pursuit of passions. With a team of over 19,000 associates across 35 countries, Garmin serves the automotive, aviation, marine, outdoor, and fitness markets with innovation and a commitment to beating yesterday. Their mission focuses on creating superior, essential products across various sectors, aiming to be the global leader recognized for compelling design, superior quality, and exceptional value. At the core of Garmin's culture are honesty, integrity, and respect, driving their commitment to outstanding customer service and performance, embodying their vision and values in every product and interaction.

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