ZTE Axon M
A top focus for ZTE at CES 2018 was showcasing the novel Axon M smartphone. The device is all about the screen -- or rather, the two screens. The smartphone folds open to reveal dual 5.2-inch displays with 1,080p resolution, which can be combined to provide 6.75 inches of display space (in "extended mode"). For productive multi-tasking, users can use the Axon M to run different apps on each display. Other uses include mirror mode, for viewing the same thing on both displays -- which could come in handy with entertaining the kids by folding the phone open into a tent.
The ZTE Axon M is available through just one carrier, AT&T, and is priced at $724.99.