Stainless steel or space black stainless steel case, Sapphire crystal, Retina display with Force Touch, Ceramic back, Digital Crown, Heart rate sensor, accelerometer, and gyroscope, Ambient light sensor, Speaker and microphone, Wi-Fi (802.11b/g/n 2.4GHz), Bluetooth 4.0, Up to 18 hours of battery life , Water resistant
The Apple Watch collection features highly polished stainless steel and space black stainless steel cases. The display is protected by sapphire crystal. And there
