The Garmin Forerunner 255S is a smaller version of the Forerunner 255, catering to users who prefer a more compact design without losing advanced fitness tracking capabilities. With a 1.1-inch sunlight-readable display, a weight of just 39 grams, and a 42mm case size, it ensures maximum comfort for runners with smaller wrists.
Key upgrades over previous models include multi-band GNSS support for superior GPS accuracy, HRV status for better recovery insights, and daily suggested workouts based on training load and recovery status. Additionally, its 14-day battery life in smartwatch mode and up to 30 hours in GPS mode makes it a long-lasting training companion.
The Forerunner 255S Music edition allows users to download playlists from Spotify, Deezer, or Amazon Music, offering phone-free listening with Bluetooth headphones.
Designed for Comfort and Performance
The Garmin Forerunner 255S is built for runners who prioritize both functionality and comfort. With a sleek 42mm case and lightweight 39g design, it fits smaller wrists perfectly without feeling bulky. Whether training for a marathon or wearing it throughout the day, its soft silicone strap and sweat-resistant materials ensure a secure yet comfortable fit. The 1.1-inch sunlight-readable display provides clear visibility in any lighting condition, making it ideal for both indoor and outdoor activities.
Precision GPS with Multi-Band GNSS Technology
Accurate location tracking is essential for runners, and the Forerunner 255S delivers unparalleled GPS performance with its multi-band GNSS technology. This advanced feature ensures precise route mapping even in dense urban environments, forests, or mountainous regions where standard GPS signals might struggle. Whether tracking your pace, distance, or elevation changes, this smartwatch provides real-time data accuracy, allowing users to analyze their runs with confidence.
Comprehensive Running and Training Analytics
The Forerunner 255S is more than just a fitness tracker—it serves as a personal running coach with in-depth performance analytics. It includes VO2 max estimations, helping athletes measure their aerobic capacity and endurance. The HRV status feature tracks heart rate variability, offering insights into recovery and overall fitness readiness.
Additionally, this smartwatch provides advanced running dynamics such as:
24/7 Health and Recovery Monitoring
Understanding your body’s needs is crucial for maximizing performance, and the Forerunner 255S provides continuous health monitoring beyond just fitness tracking. Its wrist-based heart rate sensor offers real-time pulse tracking, while the advanced sleep monitoring system evaluates sleep patterns and assigns a sleep score to help users improve rest quality.
Other essential health metrics include:
Music Storage for Phone-Free Listening
For those who love to run with music but prefer to leave their phone behind, the Forerunner 255S Music edition provides a seamless listening experience. Users can download playlists from Spotify, Amazon Music, and Deezer, storing up to 500 songs directly on the watch. Simply connect Bluetooth headphones, and you’re ready to enjoy music during workouts without distractions or extra devices.
Smart Connectivity for Everyday Convenience
Beyond fitness, the Forerunner 255S functions as a full-featured smartwatch with everyday smart capabilities. With smart notifications, users can receive calls, text messages, emails, and app alerts directly on their wrist. Additionally, Garmin Pay™ contactless payments allow users to make purchases without needing a wallet or phone, making it convenient for those always on the go.
Other smart features include:
Extended Battery Life for Endurance Athletes
Battery life is a crucial factor for endurance runners, and the Forerunner 255S is designed to last. It provides:
Water Resistance and Rugged Durability
Built for all-weather training, the Forerunner 255S boasts a 5 ATM water resistance rating, making it suitable for swimming, rain, and intense sweat-heavy workouts. The Corning® Gorilla® Glass 3 display enhances durability, ensuring the watch withstands accidental bumps, scratches, and rough outdoor conditions. Whether running on trails or navigating urban streets, this smartwatch is built to endure any fitness challenge.
The Garmin Forerunner 255S is a feature-packed smartwatch tailored for runners and endurance athletes. With advanced GPS accuracy, personalized training tools, continuous health monitoring, and seamless music integration, it serves as an all-in-one fitness and lifestyle companion. Whether you're training for a marathon, improving daily fitness, or staying connected on the go, this smartwatch provides the performance and convenience needed for an active lifestyle.