Apple Watch Gen 1 Sport 42mm Gold Aluminum - Midnight Blue Sport Band MLC72LL/A Gold anodized aluminum case, Ion-X glass, Digital CrownRetina display with Force Touch Speaker and microphone, Wi-Fi (802.11b/g/n 2.4GHz), Bluetooth 4.0 Up to 18 hours of battery Sport Band with stainless steel pin Heart rate sensor, accelerometer and gyroscope; Ambient light sensor