Hello, I am wondering if the Air 3 has an OLEDdisplay like the modern iphone 12 and Air 4 or does it have the older lcd ones? As for the current iPad, they say the display is not laminated and there is an air gap. Do they mean the gap like in the original iPad or is it the same screen in the flatter Air 2? Also both are 3GB RAM and bionic A12, any other difference?