Garmin Forerunner 255S 

Running is important to you. Take it a step further with the Forerunner 255S everyday GPS smartwatch. Train smarter, recover smarter and run better than ever before. 

Run at a higher level - You're making strides. Now, let's take the next step. Get the training and recovery insights you'll need to notch your best time yet.

• Get an overview of your sleep, HRV status and daily workout with your morning report.
• Charge less, train more with up to 12 days of battery life in smartwatch mode and up to 26 hours in GPS mode.
• Push your limits with a built-in triathlon feature and 30+ activity profiles.
• Plan your strategy with daily suggested workouts, course details and more on the race widget.
• Utilise a full suite of advanced metrics and training tools to reach your goals.
• Pay for your post-workout coffee with Garmin Pay contactless payments.   

Display:

• Technology: MIP
• Size: 2.79 cm (1.1")
• Resolution: 218 x 218 pixel

Operation / Sensors:

• Buttons on the side
• Accelerometer, Gyroscope, GPS, Galileo, Glonass, Compass, Thermometer
• Heart rate sensor

Functions:

• Altitude measurement, calorie consumption measurement, sleep monitoring, heart rate measurement¹, pedometer, alarm clock, timer, distance measurement, speed measurement

¹ This product is not a medical device and is not intended to diagnose, treat, cure or prevent any disease.

Energy:

• Lithium-Ion battery
• Max. Running time: 12 days
• Typical use: Up to 12 days

Dimensions:

• Silicone wristband: suitable for wrist circumference from 110 to 175 mm
• Housing: 41 x 41 x 12.4 mm
• Weight: 39 g

Features: 

• Ready for the long run 
• Almost as light as a feather 
• Sweat-ready materials 
• Monrning report 
• HRV satus 
• Built-In sports APPS 
• Race widget 
• Daily suggested workouts 
• Garmin coach 
• Triathlon and multisport profiles 
• Running power 
• Recovery time 
• Pacepro feature 
• Training status 
• Acute load 
• Training effect
• Performance condition 
• Running dynamics 
• Courses 
• Track running 
• Visual race predictor 
• Cross-Training 
• Wrist-Based Heart Rate 
• Body battery energy monitoring 
• Sleep score and advanced sleep monitoring 
• Pulse OX sensor 
• Women´s health tracking 
• Intensity minutes 
• Stress tracking 
• Health snapshot feature 
• SATIQ Technology 
• Garmin Pay contactless payments 
• Smart notifications 
• Safety and tracking features 
• Livetrack feature
• Gamin connect APP
• Connect IQ store