The Huawei Mate X uses one big wraparound display made by BOE. [credit: Huawei ] Huawei's futuristic foldable smartphone, the Huawei Mate X, is finally a real product. The phone went on sale in China today for the heart-stopping price of $2,421 (16,999 yuan). Just like that other foldable smartphone on the market, the Galaxy Fold, the Mate X had a very bumpy road on its way to market full of delays and setbacks.