Forerunner 955, power-data cable, documentation

Built with an always-on, full-color display that’s light on the wrist and easy to read even in direct sunlight
Battery life: up to 15 days of battery life in smartwatch mode for a full picture of your health — from sleep to training; plus, get up to 42 hours in GPS mode and up to 80 hours in UltraTrac mode
Click or swipe through maps and stats with traditional button controls or a new, responsive touchscreen