Built to last
Get an uninterrupted picture of your health and night-time sleep with up to 14 days' battery life in connected watch mode and up to 30 hours in GPS mode.
Sweat-resistant materials
Featuring easy-to-use buttons and a nylon strap, this watch is ready to wear and wear again, thanks to its resistant Corning® Gorilla® Glass 3. Lightweight and comfortable, you'll enjoy wearing it every day.
Morning report
Get an overview of your sleep as soon as you wake up, as well as your VFC status and weather information. You can even customize your report to display whatever you want.
VFC status
Improve your understanding of your overall health, recovery and training performance with heart rate variability during sleep, based on technology developed by our Firstbeat Analytics™ team.
Multisports
Enjoy over 30 integrated activities, including triathlon and open-water swimming profiles, new to the Forerunner 255 series. For races and interval training, move on to the next activity at the touch of a button.
Race widget
Prepare for your next race with training tips, personalized daily workout suggestions and final time predictions based on course details, weather and performance.
Daily workout suggestions
View daily training suggestions for the whole week, which adapt after each run according to your performance and recovery, as well as upcoming races in the calendar of your Garmin Connect™ smartphone app.
Precise load
Consult your training history and compare the intensity of your recent workouts with the optimal range for improving your fitness level.
Training effect
You can see how your training influences your endurance, speed and power with information on aerobic and anaerobic training effect. aerobic and anaerobic training effect.
Performance requirements
As you run, get an analysis of your pace and heart rate for a real-time assessment of your body's capabilities.
Course
Create routes or search for them in the Garmin Connect app, so you'll never run out of routes to explore. You can also plan them on other platforms such as Strava and Komoot, then automatically synchronize them on your Forerunner.
Cross-training
Combine your training with different types of exercise. Free HIIT, strength training, cardio, yoga and Pilates exercises are pre-loaded on the watch, and you can download others from the Garmin Connect app.
Body battery energy monitoring
See your energy level Optimize your body's energy reserves by using heart rate variability, stress, sleep and other data to assess when you're at peak performance or need a rest.
Sleep coach
Get personalized guidance on how much sleep you need and how you can improve it. Use these recommendations to find the right balance between intense activity and the recovery your body naturally needs
Track or automatically record your naps to see how beneficial they are to your body, and find out the ideal recommended time and duration.
Stress monitoring
Find out whether you're having a calm, balanced or stressful day. Relaxation reminders even prompt you to do a short breathing activity when your watch detects that you're stressed.
Contactless payment with Garmin pay
Pay for your purchases easily with the contactless payment solution Garmin Pay via partner banks.
Monitoring and safety functions
If you feel in danger, or if your watch detects that an incident has occurred, the assistance and incident detection functions send your position to your emergency contacts. Incident detection is activated by default for certain activity profiles only.
