Designed 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.
Perspiration-resistant materials.
With easy-to-use buttons and a nylon strap, this watch is ready to wear and carry thanks to its resistant Corning® Gorilla® Glass 3. It's lightweight and comfy, so 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 HRV status and weather information. You can even customise your report to show what you want.
HRV status
Improve your understanding of your overall health, recovery and training performance with sleep heart rate variability, based on technology developed by our Firstbeat Analytics team™.
Multisports
Enjoy over 30 built-in activities, including triathlon and open water swimming profiles, new to the Forerunner 255 series. For running and interval training, move on to the next activity at the touch of a button.
Running widget.
Prepare for your next race with training tips, personalised daily workout suggestions and final time predictions based on course details, weather and performance.
Daily training suggestions.
View daily training suggestions for the whole week, which adapt after each run based on your performance and recovery, as well as upcoming races in your Garmin Connect™ smartphone app calendar™.
Accurate charging.
View your training history and compare the intensity of your recent workouts to the optimal range to improve your fitness.
Training effect.
You can see how your training influences your endurance, speed and power with aerobic and anaerobic training effect information.
Performance condition.
As you run, get an analysis of your pace and heart rate for a real-time assessment of your body's capabilities.
Routes
Create routes or search for them in the Garmin Connect app so you never run out of routes to explore. You can also plan them on other platforms such as Strava and Komoot, then sync them automatically to your Forerunner.
Cross Training.
Combine your training with different types of exercise. Free HIIT, weight training, cardio, yoga and Pilates workouts are pre-loaded on the watch and you can download more from the Garmin Connect app.
Body battery energy monitoring.
Check your energy level. Optimise your body's energy reserves by using heart rate variability, stress, sleep and other data to assess when you're at your best or when you need a rest.
Sleep coach.
Get personalised guidance on how much sleep you need and advice on how you can improve it. Use these recommendations to find the right balance between intense activity and the recovery your body naturally needs.
Automatically track or record your naps to see how beneficial they are for your body, and find out the ideal recommended time and duration.
Stress tracking.
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 with ease using the Garmin Pay contactless payment solution via partner banks.
Tracking and security features.
If you feel in danger or if your watch detects that an incident has occurred, the assistance and incident detection functions send your location to your emergency contacts. Incident detection is activated by default for certain activity profiles only.