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The Garmin Forerunner® 255S is a compact GPS running smartwatch designed for serious athletes and fitness enthusiasts. Featuring a sunlight-visible 1.1-inch display, multi-satellite GPS, and a 12-day battery life, it delivers personalized training plans, race predictions, and advanced health metrics like sleep score and HRV status. Lightweight and wrist-mounted, it supports multisport profiles and seamless smartphone connectivity, making it the ultimate companion for adaptive, data-driven training.



| Memory Storage Capacity | 4 GB |
| Display Type | Sunlight-visible, Transflective Memory-in-Pixel (MIP) |
| Human-Interface Input | Buttons |
| Compatible Devices | Smartphone |
| Control Method | App |
| Are Batteries Included | Yes |
| Supported Satellite Navigation System | GPS |
| Connectivity Protocol | Bluetooth, Wi-Fi |
| Sport Type | Training, Track & Field, Exercise & Fitness, Running, Outdoor Lifestyle |
| Battery Average Life | 12 days |
| Mount Type | Wrist Mount |
| Resolution | 218 x 218 pixels |
| Screen Size | 1.1 Inches |
| Additional Features | Triathlon And Multisport Profiles, Built-in Sports Apps, HRV Status, Wrist-Based Running Power, Garmin Coach, Race Adaptive Training Plans, Improved Sleep Monitoring And Sleep Score, Morning Report, Wrist-Based Running Dynamics, Daily Suggested Workouts |
| Connectivity Technology | Bluetooth, USB |
| Map Types | North America |
| Item Weight | 1.4 Ounces |
| Item Dimensions L x W x H | 1.61"L x 1.61"W x 0.49"H |
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