Garmin Forerunner 255, GPS Running Smartwatch, Advanced Insights, Long-Lasting Battery, Slate Gray (Renewed)

Items Description

The Garmin Forerunner 255 is a precision-engineered running smartwatch designed to deliver advanced performance metrics and comprehensive fitness tracking in a durable, lightweight package. This slate gray variant features a 46mm fiber-reinforced polymer case with a brushed metal bezel, offering a rugged yet refined aesthetic that transitions seamlessly from trail runs to daily wear. With an always-on, full-color display that remains legible even under direct sunlight, the Forerunner 255 provides instant access to critical training data without compromising readability.

 

Built for athletes who demand depth, this smartwatch integrates GPS, GLONASS, and Galileo satellite systems for accurate route tracking, while providing up to 14 days of battery life in smartwatch mode. The Forerunner 255 introduces HRV status, daily suggested workouts based on your current training load, and advanced recovery insights—all accessible through Garmin Connect. Whether you are training for a marathon or maintaining daily fitness, the slate gray Forerunner 255 offers the durability, comfort, and analytical power needed to elevate your performance.

 

Key Advantages of the Garmin Forerunner 255, GPS Running Smartwatch, Advanced Insights, Long-Lasting Battery, Slate Gray (Renewed)

 

1. Precision Multi-Band GPS Tracking

The Forerunner 255 employs multi-band GNSS technology, simultaneously accessing GPS, GLONASS, and Galileo satellite constellations. This ensures exceptional accuracy even in challenging environments such as dense urban canyons or forested trails. The slate gray model’s robust antenna system delivers consistent positioning data, allowing runners to analyze their routes with confidence.

 

• Multi-Constellation Support: GPS, GLONASS, and Galileo for global coverage.
• Urban Accuracy: Multi-band reception minimizes signal loss near tall buildings.
• Trail Reliability: Consistent tracking under heavy tree canopy.

 

2. Advanced Training & Recovery Insights

This smartwatch goes beyond basic metrics by offering HRV status, a critical indicator of nervous system recovery. The Forerunner 255 analyzes your heart rate variability during sleep, providing a daily readiness score that helps optimize training intensity. Combined with training load focus, which breaks down your recent effort into aerobic, anaerobic, and high aerobic categories, you gain a holistic view of your fitness trajectory.

 

• HRV Status: Measures overnight heart rate variability for recovery feedback.
• Training Load Focus: Categorizes effort type to guide balanced progression.
• Daily Suggested Workouts: Adaptive recommendations based on current fitness and recovery.
• Race Time Predictor: Estimates finish times for common race distances using performance data.

 

3. Long-Lasting Battery for Extended Training

Battery performance is a standout feature of the Forerunner 255. In smartwatch mode, it delivers up to 14 days of use, while GPS-only mode extends to approximately 30 hours. This endurance makes it suitable for ultra-distance events, multi-day adventures, or simply reducing charging frequency during daily training cycles.

 

• Smartwatch Mode: Up to 14 days for all-day wear and notifications.
• GPS-Only Mode: Up to 30 hours for marathon training or long rides.
• All-Systems GNSS: Up to 25 hours with multi-band accuracy enabled.

 

4. Slate Gray Design & Build Quality

The slate gray colorway offers a subdued, professional appearance that complements athletic and casual attire. The 46mm fiber-reinforced polymer case is lightweight and impact-resistant, while the scratch-resistant Corning Gorilla Glass 3 lens protects the display. A silicone band provides secure, sweat-resistant wear, ensuring comfort during high-intensity sessions. This variant is available in a single 46mm size, optimized for wrist presence and readability.

 

• Case Material: Fiber-reinforced polymer with brushed metal bezel.
• Display Protection: Corning Gorilla Glass 3 for durability.
• Band: 22mm silicone strap, interchangeable with standard quick-release bands.
• Weight: Approximately 49 grams (with band), ensuring negligible wrist fatigue.

 

5. Comprehensive Health Monitoring Suite

Beyond training, the Forerunner 255 provides 24/7 health tracking. The Elevate wrist heart rate sensor monitors heart rate continuously, while Pulse Ox acclimation sensing tracks blood oxygen saturation during sleep and at altitude. Sleep score and nap detection offer detailed sleep stage analysis, helping you understand rest quality. The watch also features stress tracking with a body battery energy monitor, giving a holistic view of daily energy levels.

 

• Heart Rate Monitoring: Optical sensor with abnormal heart rate alerts.
• Pulse Ox: On-demand or all-night monitoring for acclimation assessment.
• Sleep Score: Details sleep stages, including light, deep, and REM.
• Body Battery: Energy monitoring based on heart rate variability and activity.

 

6. Smart Features & Safety Functions

When paired with a compatible smartphone, the Forerunner 255 offers smart notifications for calls, texts, and calendar alerts. Safety features include incident detection, which sends your real-time location to emergency contacts via the Garmin Connect app when a GPS incident is detected. The watch also supports music controls and Garmin Pay contactless payments, enhancing convenience during runs or daily errands.

 

• Smart Notifications: Incoming calls, text messages, and app alerts.
• Incident Detection: Automatic alert with GPS location to selected contacts.
• Garmin Pay: Contactless payment at supported terminals.
• Music Controls: Manage playback from your wrist (requires a paired phone).

 

The Garmin Forerunner 255 in slate gray is a definitive tool for runners who value detailed performance analytics, robust build quality, and enduring battery life. Its multi-band GPS ensures accurate route tracking, while HRV status and daily suggested workouts provide data-driven guidance for every session. The subdued slate colorway offers versatility, matching a professional wardrobe or active gear. With comprehensive health monitoring and integrated safety features, this smartwatch serves as both a training partner and a daily companion. Whether you are logging daily miles or preparing for a competitive race, the Forerunner 255 delivers the insights and reliability needed to progress confidently.

Specifications of Garmin Forerunner 255, GPS Running Smartwatch, Advanced Insights, Long-Lasting Battery, Slate Gray (Renewed)

Brand	Garmin
Model Name	Forerunner 255
Special Feature	GPS
Connectivity Technology	Bluetooth, USB
Wireless Communication Standard	Bluetooth
Battery Cell Composition	Lithium Ion
GPS	True
Shape	Train
Screen Size	1.3 Inches

Prev:  Garmin 010-01614-00 Forerunner 735XT, Multisport GPS Running Watch With Heart Rate, Black/Gray     Next: Garmin 010-02540-00 Fenix 7 Smartwatch Silver with Graphite Band | Official USA Partner Model | Bundle with 2 YR CPS Enhanced Protection Pack

Specifications
[Brand]	Garmin
[Model Name]	Forerunner 255
[Special Feature]	GPS
[Connectivity Technology]	Bluetooth, USB
[Wireless Communication Standard ]	Bluetooth
[Battery Cell Composition]	Lithium Ion
[GPS]	True
[Shape]	Train
[Screen Size]	1.3 Inches

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