The device is tipped to launch late this year or in Q1Y19.
It is pretty clear that smartphones with a large footprint are here to stay. These are meant to be used in a device launching in the fourth quarter of this year or the first quarter of 2019. The brand has ordered for flat panels and not curved ones. For comparison, the display size of Samsung Galaxy Note is equal to 9 of 6.38 inches.
"According to a new report from Korea, Huawei has placed orders for 6.9" AMOLED panels with Samsung Display. Most phones are opting for a taller 18:9 aspect ratio now instead of the older 16:9 displays, which helps quite a bit for usability, and I'd expect Huawei to utilize all of this to make a phone that's actually still usable. Also, it is expected to be 0.8 inches larger than the screen of the Huawei P20 Pro.
Although the Mate 20 Pro is not explicitly referenced, considering the wide diagonal of the display and the traditional lineup of Huawei flagships, everything points to the next generation Mate.
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The trailer also seemed to be pretty careful to show an even mix of single player, four player, and larger-scale 8-player gameplay.
If the Mate 20 Pro gets a 6.9-inch screen that would make it about the size of a small tablet.
The Mate 10 Pro also integrates an OLED display.
It's common for flagship smartphones to have displays of over 6-inches but the panels have not yet reached the 7-inch mark which would essentially push them into the tablet territory.
The report said Huawei, China's largest smartphone maker with more than 20 percent market share, may have chose to play it bigger with aims to take an edge in the burgeoning premium market at home where consumers prefer bigger-screen phones to scribble complicated Chinese characters. As for the specs, we don't know much about the handset right now.