






🏃♂️ Elevate your run, own your day.
The Garmin Forerunner® 255 is a sleek GPS running smartwatch offering up to 14 days of battery life, advanced health insights including HRV and sleep tracking, and adaptive training plans. Its always-on, sunlight-readable display and dynamic running metrics (with optional sensors) empower runners to optimize performance and recovery with personalized data-driven guidance.



| Color | Slate Gray |
| Band Color | Slate Gray |
| Style Name | Non-Music |
| Item Shape | Heart |
| Compatible Devices | Smartphone |
| Display Type | Sunlight-visible, Transflective Memory-in-Pixel (MIP) |
| Screen Size | 1.3 Inches |
| Battery Average Life | 336.0, 30.0 Hours |
| Battery Cell Type | Lithium Ion |
| Item Dimensions | 1.8 x 1.8 x 0.5 inches |
| Item Weight | 1.7 Ounces |
| Band Width | 22 Millimeters |
| Warranty Type | Limited |
| Communication Feature | GPS, NFC |
| Wireless Compability | Bluetooth |
| Wireless Provider | du |
| Connectivity Technology | Bluetooth, USB |
| Human-Interface Input | Buttons |
| Supported Application | GPS |
| Controller Type | Touchscreen, other |
| Metrics Measured | Optical Heart Rate, Accelerometer |
| Case Material Type | Resin |
| Water Resistance Level | Water Resistant |
| Sport Type | Training, Track & Field, Exercise & Fitness, Running, Outdoor Lifestyle |
| Closure Type | Buckle |
| Additional Features | Morning Report; HRV Status; Built-In Sports Apps; Race Adaptive Training Plans; Daily Suggested Workouts; Triathlon and Multisport Profiles; Wrist-Based Running Dynamics; Wrist-Based Running Power, Recovery Time; PacePro™ Feature; Grade-Adjusted Pace; Wrist-Based Heart Rate; Body Battery™ Energy Monitoring; Improved Sleep Monitoring and Sleep Score; Pulse Ox Sensor |
| GPS Geotagging Functionality | GPS Enabled |
| Band Material Type | silicone |
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