The iPad range was updated in late 2013, with a lighter, thinner model known as the iPad Air, and a new mini with a Retina display. The iPad mini with Retina display’s 7.9-inch screen resolution matches the iPad Air’s. Both new iPads have an A7 chip, with 64-bit architecture, advanced graphics and good cameras on the rear of the device.
Precision-engineered to weigh just one pound, the iPad Air is 20% thinner and 28% lighter than the fourthgeneration iPad it replaced. The bezel is narrower too, and it‘s snappier to use. The iPad 2 was discontinued in March 2014, and replaced by the fourth-generation iPad with Retina display. Along with the iPad mini (without a Retina display), these are the cheapest options.