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 255 |
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
|
Smartwatches |
Subcategory
A more specific category under the main one
|
GPS Running Watches |
Industry
The industry sector the product belongs to
|
Sports and Outdoor |
Battery and Power | |
Battery Type
Type of battery used
|
Internal rechargeable lithium-ion |
Battery Life (Smartwatch Mode)
Battery life in smartwatch mode
|
Up to 14 days |
Battery Life (GPS-Only GNSS Mode)
Battery life in GPS-only GNSS mode
|
Up to 30 hours |
Battery Life (All-Systems GNSS Mode)
Battery life in All-Systems GNSS mode
|
Up to 25 hours |
Battery Life (All-Systems GNSS Mode plus Multi-Band)
Battery life in All-Systems GNSS mode plus Multi-Band
|
Up to 16 hours |
Charging Method
Charging method for the device
|
Garmin proprietary plug charger |
Design and Build | |
Lens Material
Material of the watch lens
|
Corning® Gorilla® Glass 3 |
Bezel Material
Material used for the bezel
|
Fiber-reinforced polymer |
Strap Material
Material of the watch strap
|
Silicone |
Quick Release Bands
Supports quick release bands
|
Yes (22 mm, industry standard) |
Dimensions (L x W x H)
Physical dimensions of the watch
|
45.6 x 45.6 x 12.9 mm |
Wrist Circumference
Fits wrists with the following circumference
|
130-205 mm |
Physical Attributes | |
Weight
Weight of the watch
|
49 g |
Display | |
Display Type
Type of display used
|
Sunlight-visible, transflective memory-in-pixel (MIP) |
Display Size (Diameter)
Size of the display screen
|
1.3" (33 mm) |
Display Resolution
Pixel resolution of the display
|
260 x 260 pixels |
Color Display
Whether the display is in color
|
Yes |
Large Font Option
Supports large font option
|
Yes |
Physical Attributes | |
Water Rating
Water resistance rating
|
5 ATM |
Sensors and Components | |
GPS
Built-in GPS receiver
|
Yes |
GLONASS
Supports GLONASS satellites
|
Yes |
Galileo
Supports Galileo satellites
|
Yes |
SatIQ™ Technology
Provides optimal positioning accuracy
|
Yes |
Garmin Elevate™ Wrist Heart Rate Monitor
Monitors heart rate at the wrist
|
Yes |
Pulse Ox Sensor
Measures blood oxygen saturation levels
|
Yes |
Barometric Altimeter
Measures atmospheric pressure
|
Yes |
Compass
Built-in compass sensor
|
Yes |
Gyroscope
Detects rotational movement
|
Yes |
Accelerometer
Detects movement and orientation
|
Yes |
Thermometer
Measures ambient temperature
|
Yes |
Connectivity | |
Wireless Protocols
Types of wireless connections supported
|
Bluetooth®, ANT+® |
Smartphone Compatibility
Supports pairing with compatible smartphones
|
iPhone®, Android™ |
Memory and Storage | |
Internal Memory Capacity
Amount of internal storage
|
4 GB |
Health and Fitness Tracking | |
Heart Rate Monitoring
Measures heart rate
|
Yes |
Blood Oxygen Saturation Monitoring
Measures blood oxygen saturation levels
|
Yes |
Respiration Rate Monitoring
Monitors respiration rate
|
Yes |
Stress Monitoring
Monitors stress levels
|
Yes |
Sleep Monitoring
Tracks sleep patterns
|
Yes (Advanced) |
Sleep Coach
Provides sleep score and personalized coaching
|
Yes |
Women's Health Tracking
Tracks women's health
|
Yes |
Body Battery™ Energy Monitor
Monitors body energy levels
|
Yes |
Health Snapshot
Includes Health Snapshot feature
|
Yes |
Activity Tracking Features | |
Step Counter
Counts steps taken
|
Yes |
Calorie Burn Tracking
Tracks calories burned
|
Yes |
Floors Climbed
Tracks floors climbed
|
Yes |
Distance Traveled
Monitors distance traveled
|
Yes |
Specialized Activity Profiles | |
Activity Profiles
Preloaded sports and activity profiles
|
Gym, Multisport, Wellness, Indoor and Outdoor Running, Outdoor Recreation, Cycling, Swimming, Water Sports, Racket Sports, Snow Sports, Team Sports, Combat Sports, Other Activities |
Navigation Features | |
Navigation
Provides navigation features
|
Yes |
Environmental Specifications | |
Water Rating
Specific water-resistance rating
|
5 ATM |
Software and Compatibility | |
Companion App
Dedicated app for device management
|
Garmin Connect™ Mobile |
Third-Party App Compatibility
Supports third-party apps
|
Yes |
Smart Features | |
Garmin Pay
Supports Garmin Pay contactless payments
|
Yes |
Smartphone Notifications
Receives smart notifications
|
Yes |
Connect IQ™ Store
Downloadable watch faces and apps
|
Yes |
Safety and Tracking Features | |
Incident Detection
Provides incident detection during activities
|
Yes |
Assistance
Allows sending assistance alerts
|
Yes |
LiveTrack
Supports LiveTrack feature
|
Yes |
- Acute load workout comparison
- Daily suggested workouts
- Up to 14 days battery life
- Up to 30 hours GPS mode
- 30+ activity profiles
- Garmin Pay contactless payments
- Lightweight design
- Morning report
- 30+ built-in sports apps
- Race adaptive training
- Recovery time advisor
- PacePro technology
- Grade-adjusted pace metrics
- Training status updates
- Courses feature for running routes
- Visual race predictor
- Cross-training options
- Wrist-based heart rate monitoring
- Body Battery energy monitoring
- Sleep coach
- Pulse Ox sensor
- Womens health tracking
- Intensity minutes feature
- Stress tracking
- Health Snapshot feature
- Smart notifications
- Safety and tracking features
- Connect IQ Store access
- Integrates with Garmin Connect
- Sunlight-visible MIP display
- HRV status monitoring
- Nap detection
- Performance condition insights
- SatIQ technology
- Built-in triathlon features
- Training effect insights
- Wrist-based running power
- Targeted cycling coaching
- Wrist-based running dynamics
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