Garmin Forerunner 255 Music Running Watch (Black)The Garmin Forerunner 255 Music Running Watch gives you an uninterrupted picture of your daily health and nightly sleep with up to 14 days of battery life in smartwatch mode and up to 30 hours in GPS mode. As Light as a Feather With its sleek design and 1. 7 oz. weight, you will almost forget youre wearing Forerunner 255 Music even when youre asleep. Sweat Ready Materials Featuring easy to use buttons and a silicone band, this watch is ready to wear