Last year Tecno presented a rollable phone concept called the Phantom Ultimate. This was just a concept, though, seen only in demo videos – but now the company has some actual prototypes and brought them to the MWC. We got some hands-on time with the Ultimate and a couple of other interesting ideas that are brewing over at Tecno HQ. The Phantom Ultimate may never become a retail product, but it is now a real working device. The phone starts off with a 6.55” display that wraps around the left edge. At the push of a button, it grows wider and as more screen spools out the diagonal grows to...

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