Huawei has developed a smartphone that tri-folds out into a tablet. Closed, the Huawei Mate XT Ultimate Design offers a 6.4" screen; unfold one panel, and it's a 7.9" screen; open the whole thing, and you've got an iPad-rivaling 10.2" display. Fancy engineering apparently keeps the hinges rigid when it's unfolded.

Closed, the profile is just over ½" thick; in tablet mode, it's closer to 1/8".

As you can see by the video, they appear to be targeting China's version of the "Succession" crowd, right down to the similar theme song.

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The company's taking pre-orders for the phone in China. Despite the eye-watering 19,999 yuan (USD $2,808) asking price, they've clocked over 4 million pre-orders and counting!