The document discusses several mobile devices: - The Nokia Lumia 1520 smartphone has a large, high-definition touchscreen display, 20 megapixel camera, and integrates Microsoft Office apps. - The Blackberry Z10 is Blackberry's first fully touchscreen smartphone running the new Blackberry 10 OS, with a 4.2-inch screen resolution of 1280 x 720 pixels. - The new Samsung Galaxy S5 smartphone has an improved screen, software, and memory compared to previous models.