Apple iPad Air and iPad mini with Retina display

Apple ipad Air and Apple ipad mini

Left- iPad mini with Retina display and Right- iPad Air

At an event in california, Apple has finally unveiled the much awaited, new iPad  Air and iPad mini with Retina display , With announcement of  Macbook Pro laptops, it also announced that the  latest operating system OSX Mavericks will be available as a free download.
The 9.7 inch iPad Air with Retina display resembles iPad mini a lot. It is 7.5mm thick and weighs 10 pound. Apple claimed it is the thinnest full-sized tablet in the world.
Both Tablets uses the same 64-bit A7 chip and the M7 motion co-processor that was introduced recently with the iPhone 5S. It can open files and render graphics twice as fast as the iPad 4, while still promising the same 10-hour battery life.

Though both ipads are almost same only noticiable feature is their display and resolution.  Both tablets use a 2048 by 1536 retina display, Because of the smaller size of ipad mini 
It contains more pixels per inch which is 326 w.r.t to 264 of iPad Air.
There is a price difference of  $100 between the two Tablets.
 The Company also showcased two covers for the iPad Air and Retina iPad mini priced at $69 and $79, respectively.
Both Tablets feature two antennas to support Multiple-In-Multiple-Out (MIMO) technology, bringing nearly twice the Wi-Fi performance with data rate possible of going up to 300Mbps. Cellular models too will have better LTE coverage as these will support more LTE networks worldwide.
Surely it will be tough, to choose among the two Tablets.

	IPad Air	IPad mini w/retina display
Price	$499-$929	$399-$829
Operating System	iOS 7	iOS 7
Physical Dimensions	9.4 by 6.6 by 0.29 inches	7.87 by 5.3 by 0.29 inches
Weight	1 pound	0.73 pounds
Battery life	Up to 10 hours	Up to 10 hours
Cpu	Apple A7 (64-bit) + M7 motion coprocessor	Apple A7 (64-bit) + M7 motion coprocessor
Camera Resolution	5MP rear; 1.2MP front	5MP rear; 1.2MP front
Screen Size	9.7 inches	7.9 inches
Screen Resolution	2048 by 1536	2048 by 1536
PPI	264	326
Storage	16, 32, 64 or 128GB	16, 32, 64 or 128GB
Color	Silver, Space Gray	Silver, Space Gray

For more detail Goto Apple official website