Confidently run any route using full-color, built-in maps and multi-band GPS. Plan your strategy with daily suggested workouts, course details and more on the race widget. Get up to 20 days of battery life in smartwatch mode for a full picture of your health from sleep to training. Clocking in at just 52 grams, the Forerunner 955 smartwatch will keep you light on your feet and attuned to your body.