Apple has updated its iPad mini tablet, which now comes with a Retina display. See also: iPad mini 2 review of reviews - what do the experts say about the iPad mini with Retina Display?

The device retains a similar look and feel to its predecessor, but the big upgrade is obviously a long requested retina display.

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The display has a resolution of 2048 x 1536, the same as the company's larger iPad Air. The screen has a pixel density of 326ppi.

The new iPad mini is powered by Apple's new 64-bit A7 processor. Apple says it offers up to four times the CPU performance, and up to eight times the graphics performance compared to the original iPad mini.

The new iPad mini also has an M7 motion co-processor, just like the iPhone 5s.

The iPad mini with Retina display is slightly thicker and heavier than its predecessor. It measures 7.5mm thick compared to 7.2mm, and the Wi-Fi only version weighs 331g compared to the previous model's 308g.

The Wi-Fi+LTE model tips the scales at 341g compared to 312g.

The Apple iPad mini with Retina display will be available to purchase in Australia from "later in November" but Apple hasn't yet announced an official release date.

It will be available in a total of eight variants -- 16GB, 32GB, 64GB and 128GB models in Wi-Fi-only and Wi-Fi+LTE configurations. Pricing is as follows:

iPad Air 16GB Wi-Fi -- $479iPad Air 32GB Wi-Fi -- $598iPad Air 64GB Wi-Fi -- $699iPad Air 128GB Wi-Fi -- $799

iPad Air 16GB Wi-Fi + 4G -- $629iPad Air 32GB Wi-Fi + 4G -- $749iPad Air 64GB Wi-Fi + 4G -- $849iPad Air 128GB Wi-Fi + 4G -- $949