The Nubia Z20 is a dual-screen smartphone that's launching worldwide with prices starting at $549. What makes it stand out from the competition is the massive 6.42-inch AMOLED display on the front and 5.1-inch screen on the back, beneath the triple camera setup. Inside it's packing the latest Snapdragon 855+ CPU with 128GB storage and 8GB RAM, a 4,000mAh battery, and Android 9.0 Pie running out of the box. Do you think you need a dual-screen smartphone?
