Small Stylish Design. Built-in GPS. Body Battery Energy Monitoring. Sleep Score. Fitness Tracking and Sports Apps. Health based functions for Heart rate HRV Women's health and more. Fitness functions for Move alerts Intensity Minutes Garmin Coach and more. Receive smart notifications. Garmin Connect app. Up to 9 day battery life. Corning Gorilla Glass 3 lens. Jasper Green anodized aluminum bezel and case. Jasper Green silicone band with buckle closure. Case size: 38mm x 38mm x 11mm. Band fits wrists 110-175mm in circumference. Includes charging cable.