This Xiaomi Mi MIX Concept Phone Is Both Foldable & RollableStaff·February 20, 2021AndroidMobile DevicesNews & Reviews A new Xiaomi Mi MIX concept smartphone has surfaced online, and this one is actually both foldable and rollable. The concept comes from Weibo, from an Source: This Xiaomi Mi MIX Concept Phone Is Both Foldable & Rollable