Garmin
Forerunner 255
The i-Run team says
The Garmin Forerunner 255S sports watch accompanies you in both your regular running sessions and new athletic challenges. Its sophisticated design helps you achieve even the most demanding goals.
You have access to more than 30 sports profiles to help you get the most out of yourself, including running, cycling, triathlon, hiking, and swimming. For the latter, you can choose between pool swimming and open water swimming modes.
The Garmin Forerunner 255S is equipped with the Elevate Gen 4 heart rate sensor and the Pulse Ox 2.0 oximeter, capturing important fitness data. Based on this information, it shows you training recommendations and health data directly after waking up.
An analysis is performed to improve your performance, which can be used to optimize your recovery after exertion. The Garmin Connect app allows you to organize and create training sessions, taking into account your level and goals.
The multi-band GPS calculates your position with high precision, even in difficult environments. The barometric altimeter is also useful for your outdoor excursions.
The watch features the Fitness Age 2.0 algorithm and the HRV test, which allow you to monitor your health status. The HRV test evaluates the time interval between two heartbeats to measure your fitness and stress level.
The watch, revised for longer battery life, runs up to 26 hours in GPS mode and up to 12 days in smartwatch mode.
Technical description
Model Type: Smaller version of the Forerunner 255, designed for narrower wrists.
Sports Profiles: Over 30 sports profiles for diverse athletic needs.
GPS Features: Multi-band GPS and Multi-GNSS (GPS, GLONASS, GALILEO) ensure precise positioning in challenging environments like canyons and urban areas.
Heart Rate Sensor: Elevate Gen 4 sensor for 24/7 heart rate monitoring, including underwater.
Oximeter: Pulse Ox 2.0 measures blood oxygen saturation
Altimeter: Barometric altimeter for analyzing altitude differences and assessing storm risks.
Additional Sensors: Includes a compass, accelerometer, and thermometer.
Activity Tracking: 24/7 tracking of steps, sleep, calories, floors climbed, distance, physical age, daily strain, and intensity minutes.
Training Recommendations: Automatic suggestions based on your fitness, stress level, and sleep patterns.
Performance and Training Features
- HRV Test: Displays fitness and health status by analyzing heart rate variability.
- Running Power: Calculates the power output during running (requires an HRM strap with Running Dynamics, not included).
- Race Predictor Trend: Forecasts running times and tracks performance with a chart.
- PacePro: Helps in managing pace over a set distance.
- Continuous Heart Rate Measurement: Monitors the intensity of athletic activities and stress levels.
- Garmin Coach: Access to downloadable training plans.
Wellness Functions
- Morning Report: Provides a summary of sleep quality, training suggestions, weather updates, and more.
- Body Battery: Monitors and reports energy levels.
- Fitness Age 2.0: Estimates the body's fitness age using VO2 Max, resting heart rate, and BMI or body fat percentage.
Smart Features
- Garmin Pay: Facilitates contactless payments.
- Music Control: Manage music playback (requires a nearby smartphone).
- Notifications: Displays alerts and messages.
- LiveTrack: Enables real-time location sharing.
- Safety Features: Allows sending location information to emergency contacts.
Materials and Specifications
- Color Options: Available in light gray, orange, and black.
- Battery Life: Up to 26 hours in GPS mode and 12 days in Connected Watch mode.
- Weight: 39 grams.
- Dimensions: 41 mm x 41 mm x 12.4 mm.
- Water Resistance: Rated at 5 ATM.
- Screen: 1.1'' Memory-In-Pixel color display (MIP) with a resolution of 218 x 218 pixels.
- Memory Capacity: Stores 2000 hours of activity data.
Included Accessories
- Silicone strap.
- Charging cable.
Technologies
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Fréquence cardiaque
Permanently display your beats per minute to help you improve your physical condition.
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Running Dynamics
- Stride Length: Measure the distance traveled horizontally towards your destination.
- Ground Contact Time Balance: Measure your balance during ground contact to determine if your run is symmetrical.
- Vertical Ratio: Observe the effort required to move towards your destination. A low score indicates low energy expenditure or low bounce for a high stride length.
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Body Battery
Optimize your body's energy reserves by using heart rate variability, stress, sleep, and other data to assess your fitness level or when you should rest.
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Pulse Ox
Pulse measurement, a pulse oximeter measures the amount of oxygen (relative to the maximum capacity) in the blood as it moves through your body.
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LiveTrack
Incident detection and assistance request functions.
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Garmin Coach
Are you training for a 5K, 10K, or a half marathon? Download a custom-fit Garmin Coach training plan for free, tailored to your schedule and abilities.
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Garmin Connect
Garmin Connect is an online community where athletes can connect and compete by participating in challenges, encouraging each other, and sharing their performances via social networks. Garmin Connect is free and available on your smartphone with the Garmin Connect Mobile app.
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VO2 Max
Train smarter with VO2 Max, an indicator of your performance.
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Garmin Connect IQ
Personalize your watch with watch faces, data fields, apps, and free widgets from the Connect IQ TM store.
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PacePro
Plan your race strategy with the PacePro TM 3 feature that offers GPS pace guidance based on elevation for a selected course or distance in the Garmin Connect TM app.
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Profil d'activité HIIT
Proposal for a selection of HIIT training options, such as AMRAP, EMOM, Tabata, and much more. HIIT provides tips throughout your workouts, sets the number of rounds, and chooses the work/rest intervals.
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Race Predictor Trend
The Race Predictor function displays, on a graph, the evolution of race time predictions over the long term, allowing you to better track the development of your capabilities and performance.
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GNSS Multi-bandes
This unique new feature from Garmin is a technological achievement, delivering unparalleled GPS location accuracy. Thanks to the constant recalibration of position by the watch on both frequencies of each multi-band compatible GNSS network, this technology effectively identifies and eliminates erroneous positioning data, thereby offering much higher accuracy, especially in canyons, cities, and challenging alpine environments.
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Elevate
The wrist-based optical heart rate monitor of Garmin smartwatches is a useful tool that enables the user to obtain precise heart rate estimates at any time. The optical heart rate monitor is designed to monitor the user's heart rate 24 hours a day, 7 days a week.
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Suivi menstruel et grossesse 2.0
Allows you to track menstrual cycles and display cycle details as well as other statistics on Garmin Connect.
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Fitness Age 2.0
New algorithm using the user's chronological age, VO2 Max, resting heart rate, and either BMI or body fat percentage (BMI will be used if body fat percentage is not available). Indicates to users whether their body is "older" or "younger" than they are.
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Suivi de respiration 2.0
Enables the consultation of respiration data throughout the day, during sleep, and during yoga and breathing activities.
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Test HRV/VFC
Heart rate variability is the variation in the time interval between two heartbeats. The level of HRV varies greatly among individuals, but in general, a high HRV is considered a marker of good physical fitness and health, while a low HRV is associated with negative health effects and a high level of stress.
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Profil d'activité Piste
For greater accuracy on the track, the track activity profile increases the frequency of GPS position updates.
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Running Power
The "Running Power" feature utilizes metrics such as pace, vertical oscillation, slope, and even wind force to calculate the power in watts that you apply to the ground while running. By knowing the power you expend each minute and each kilometer, you can manage your pace more effectively and thus better manage your effort.
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Entraînements animés
More than 1400 fully customizable exercises available. Displays the muscle groups worked during the activity directly on the watch.
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Live Events
Live Events Sharing (Android only) allows your entourage to interact via text messages and send encouragements.
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Puissance en course à pied
The running power function developed by Garmin utilizes metrics such as pace, vertical oscillation, incline, and even wind resistance to calculate the power you transfer to the ground while running.
By obtaining the power you expend each minute and each kilometer, you can manage your pace more easily and thus avoid tiring yourself out too quickly.
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Rythme adapté à la pente
Whether uphill or downhill, runners can now obtain their equivalent pace on flat terrain, making it easier to maintain a steady effort.
