(Telecompaper) Xiaomi has unveiled in China its latest flagship smartphone, the Mi 9. The device runs Qualcomm's latest high-end processor, the Snapdragon 855, and upgrades the camera to three lenses and a 48MP sensor. Other new features include the 'Charge Turbo' fast wireless charging and a curved iridescent back shell that changes colour depending on the light. A global launch of the device is planned for 24 February at MWC in Barcelona.