iPad mini 4 has a 7.9-inch Retina display, yet it's only 6.1 mm thin and weighs only 0.65 pounds, making it small enough to hold in one hand. It has a very powerful A8 chip with 64-bit desktop-class architecture, iSight and FaceTime HD cameras, Touch ID fingerprint sensor, Wi-Fi connectivity, and up to 10 hours of battery life.