The ultimate accessory for runners who like to stay connected, the Forerunner® 255 provides comprehensive performance and health data along with an armoury of training tools to help you reach your peak.

With a long battery life, a super-durable construction and a clear, responsive display, the Forerunner® 255 is a must-have piece of tech for life on and off the track or trail. It provides comprehensive health data such as heart rate, calories, sleep and stress. It also comes with helpful data displays like the morning report which provides a useful overview of your sleep, recovery and training outlook.

30+ activity profiles ensure the Forerunner® 255 can adapt to any training regime, including a dedicated triathlon feature that combines dedicated profiles for running, swimming and cycling. It helps to plan your strategy with daily suggested workouts and syncs up with Garmin IQ, Garmin Connect and other platforms like Strava and Komoot so you can input your pre-planned routes or access routes from other members of the running community.

Advanced running metrics go into more detail than other smartwatches to provide the ultimate training assistance, while helpful features like Garmin Pay™ contactless payments and smartphone notifications ensure the watch provides assiatance in everyday life too.

Health

• Wrist-based heart rate
• Stress tracking
• Sleep score and advanced sleep monitoring
• Body battery™ energy monitoring
• Pulse ox
• Fitness age
• Intensity minutes
• Women’s health tracking

Training

• Morning report
• HRV status
• 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
• Pre-existing courses
• Sync routes from other platforms like strava and komoot
• Track running
• Visual race predictor
• Cross-training

Connectivity and Navigation

• Bluetooth®, ANT+®
• Smartphone compatibility: iPhone®, Android®
• Multi-band GNSS support
• Garmin pay contactless payments
• Smart notifications
• Safety and tracking features
• Livetrack feature
• Garmin Connect app
• Connect IQ™ store

Technical specification

• Water rated to 50 metres (5 ATM)
• Thermal and shock resistant
• Fibre-reinforced polymer case
• Scratch-resistant Corning® Gorilla® Glass 3 screen
• 22mm QUICKFIT™ compatible watch band
• Battery: 14 days in smartwatch mode, 30 hours in GPS
• Weight: 49g
• Display: 260 x 260 pixels
• Case size: 46mm
• Edition: Standard
• In the box: Forerunner® 255 watch, Charging/data cable, documentation