U3 Pro is 2nd product of Smartisan’s mid level range, it has involved in many aspects, such as display, performance and design. U3 Pro’s proportion is basically defined by the 18:9 screen, however we have pushed the technology limit to achieve super slim bezels, it results a much more elegant proportion among same generations. With the unique invisible sensor technology, the front face has been simplified to one dot and one rectangle. The metal frame of U3 Pro is built in aluminum with dual anodized finishing, a characterized diamond-cut seem running through the center, which ties all elements on side of the phone. The finger print sensor has been integrated with Smartisan logo on back of the phone, together with the smart dual camera design, the rear face of U3 Pro is much cleaner than usual smartphones.