Track advanced fitness metrics for on-the-fly training adjustments with this black Garmin Forerunner 245 Music GPS running smartwatch. The long-lasting battery life lets you tackle marathons and other extensive training sessions before needing to recharge. This Garmin Forerunner 245 Music GPS running smartwatch features an easy-to-read large digital display, while the built-in memory stores music, so you can leave your phone at home.