For outdoor athletes who train hard and move fast Lightweight and low-profile for all-day and night comfort Extended battery life for weeks of continuous training Next-generation optical heart rate and SpO2 sensors Barometric altimeter for accurate elevation measurement Breadcrumb navigation feature to help you stay on track Always-on 1.2" transflective touchscreen display Dual-frequency GPS for pinpoint distance calculation Enjoy your favorite music with built-in audio support Nylon watchband and charging cable included