Fourth-gen iPad with Retina Display: Subtly different (pictures)
You could keep a new iPad in plain sight and no one would know the difference; however, there are a few telltale clues.
The iOS family tree: the fourth-gen Retina Display iPad (left) now has company with the iPad Mini (middle). One has a 9.7-inch display, the other has a 7.9-inch display. For comparison, the fifth-gen iPod Touch, with a 4-inch display, sits on the far right.
The Lightning cable works just like the one for the iPhone 5, iPod Touch, and all other Lightning-enable devices. The cord is easier to plug in, but the connector requires new cables for video-out and camera-photo-importing functions.