Apple Watch Nike+ Smartwatch (Black Strap, 38mm)

S2 Dual Core ProcessorYesAmbient Light Sensor, Heart Rate Sensor, Accelerometer, Gyroscope312 x 390 PixelsOLED Retina18 Hours (Based on Usage)Black38mmIphone 5, Iphone 5C, Iphone 5S, Iphone 5 Se, Iphone 6, Iphone 6 Plus, Iphone 6S, Iphone 6S Plus, Iphone 7, Iphone 7 Plus