Apple - Apple Watch 42mm Space Black Stainless Steel Case - Black Sport Band 42mm Space Black Stainless Steel Case with Black Sport Band 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) Blu