Beyond all the traditional specs that you’d associate with a quality smartphone, LG and Samsung have entered into what seems like an oddly-shaped battle: the two manufacturers are trying to out-curve each other. The Galaxy Round features a horizontally curved screen, while the LG Flex has a vertically curved screen. Supposedly, the curved screen optimizes the phone for the average face and improves visual and audio quality. But for the moment, the curved models have yet to prove any real market penetration. We’ll only be able to see whether consumers take to the idea in a few months’ time.