The Garmin Forerunner 255 Smart Watch is an advanced GPS running and multisport smartwatch engineered for runners, triathletes and fitness enthusiasts who want deeper performance insights, smarter training guidance and reliable recovery information in one dedicated device. Designed to help you understand how you train, recover and perform, the Garmin Forerunner 255 GPS Watch combines sophisticated training tools, GPS-based activity tracking, health and wellness monitoring, race-planning features and everyday smartwatch functionality. Whether you are preparing for a personal best, building endurance, training for a triathlon or simply following a structured fitness routine, the Forerunner 255 provides the information and technology needed to make every workout more purposeful.
At the core of the Garmin Forerunner 255 Running Watch is a comprehensive training experience designed around performance and consistency. The watch helps you monitor your activities and understand your training routine while providing useful information to guide your next workout. Its Morning Report gives you a convenient overview of your sleep, HRV status and daily workout, helping you start the day with greater awareness of your recovery and training outlook. By bringing key wellness and training information together, the Forerunner 255 helps you make more informed decisions about your daily activity and workout planning.
For athletes who participate in multiple sports, the Garmin Forerunner 255 Multisport GPS Watch includes a dedicated triathlon feature and more than 30 activity profiles. This allows you to track a broad range of workouts and sports, including running, cycling, swimming and other fitness activities. The multisport functionality makes the Forerunner 255 particularly useful for athletes who want one watch capable of supporting different stages of their training rather than relying on separate devices for individual sports.
The Garmin Forerunner 255 GPS Running Watch is built for athletes who need dependable tracking during outdoor training. Its advanced GNSS capabilities provide different tracking modes depending on your activity and battery requirements. The watch delivers up to 30 hours in GPS-only GNSS mode, up to 25 hours in All-Systems GNSS mode and up to 16 hours in All-Systems GNSS mode with Multi-Band. This extended GPS performance makes it suitable for long runs, endurance workouts, outdoor training and demanding race preparation. For everyday use, the rechargeable lithium-ion battery provides up to 14 days in smartwatch mode, allowing you to spend more time training and less time charging.
Race preparation is another important strength of the Garmin Forerunner 255 Smartwatch. The race widget provides useful information such as course details and daily suggested workouts to help you plan your training strategy. Instead of approaching race preparation without a structured plan, these tools can help you organise your workouts around upcoming events and maintain greater awareness of your progress. Whether you are preparing for a running race or a multisport challenge, the Forerunner 255 provides practical information to help you stay focused on your performance objectives.
The watch also provides a comprehensive collection of advanced metrics and training tools designed to help athletes better understand their workouts. By reviewing training information alongside recovery insights, you can develop a more structured approach to exercise and make better-informed decisions about your routine. This makes the Garmin Forerunner 255 Fitness Smart Watch particularly suitable for users who want more than basic step counting or simple activity recording.
Built for active lifestyles, the Forerunner 255 features a 33.1 mm colour display designed to provide clear access to training data, activity information and smartwatch functions. Its touchscreen and physical button controls provide convenient ways to interact with the watch, while the Fiber Reinforced Polymer construction offers a practical combination of durability and lightweight performance. The silicone strap is designed for comfortable everyday wear, making the watch suitable for long training sessions as well as daily use.
With a weight of approximately 49 g and dimensions of 45.6 x 45.6 x 12.9 mm, the Garmin Forerunner 255 maintains a performance-focused design without unnecessary bulk. Its 5 ATM protection rating provides additional practicality for active users, while the rechargeable lithium-ion battery supports both everyday smartwatch use and extended GPS workouts. Whether you are training outdoors, exercising at the gym or going about your daily routine, the Forerunner 255 is designed to remain a dependable part of your active lifestyle.
Connectivity is another key advantage of the Garmin Forerunner 255 GPS Fitness Watch. It supports ANT+, Bluetooth and Wi-Fi, providing flexible connectivity with compatible devices, accessories and smartphones. Bluetooth and Wi-Fi data transfer make it convenient to synchronise supported information, while compatibility with iPhone and Android devices allows the watch to fit easily into different smartphone ecosystems. The device also includes 4GB of memory, supporting smartwatch functions and stored data.
For everyday convenience, the Garmin Forerunner 255 includes Garmin Pay contactless payments for compatible users. This allows you to make supported payments directly from your watch, providing additional convenience when heading out for a run, workout or everyday activity. Instead of carrying your wallet for every short trip, compatible Garmin Pay functionality can help simplify your routine.
The Garmin Forerunner 255 Sports Smartwatch is designed to bridge the gap between dedicated athletic equipment and everyday smartwatch convenience. Its combination of GPS tracking, multisport profiles, advanced training tools, recovery insights, race planning functionality, long battery life and Garmin Pay makes it a versatile companion for serious training and everyday fitness.
For runners, the Forerunner 255 can support a wide variety of training goals, from improving endurance and running consistency to preparing for a faster race performance. For triathletes and multisport athletes, its dedicated triathlon functionality and extensive activity profiles provide additional flexibility for tracking different disciplines. For fitness enthusiasts, its health, training and smartwatch capabilities make it useful beyond individual workouts.
The Garmin Forerunner 255 Smart Watch is ultimately designed for athletes who want to train with greater awareness and make better use of their performance data. From the moment you wake up and review your Morning Report to the end of a long GPS training session, the watch provides information designed to help you understand your activity, recovery and progress. With up to 14 days of smartwatch battery life and up to 30 hours of GPS-only GNSS tracking, it is built to support demanding training schedules while reducing the need for frequent charging.
Whether you are a dedicated runner, competitive triathlete, recreational athlete or fitness-focused user, the Garmin Forerunner 255 GPS Running Watch delivers a powerful combination of performance tracking, multisport functionality, training guidance, recovery insights and everyday smart features. With its advanced GPS capabilities, 30+ activity profiles, race widget, Garmin Pay, 4GB memory, ANT+, Bluetooth and Wi-Fi connectivity, 5 ATM protection and long-lasting battery, the Forerunner 255 is a comprehensive Garmin Training Smartwatch designed to help you train smarter, recover with greater awareness and move confidently towards your next performance goal.

