Mi OS is an embedded operating system based on linux kernel and a virtual operating system based on browser. Users can operate applications on the mi OS through the browser.
Xiaomi mobile phone 4 was released in Beijing at 2 pm on July 22nd, 20th14th. Xiaomi mobile phone 4 mobile 4G version was officially launched in Xiaomi official website at noon on September 9th, 20 14, and the price is still 1999 yuan. On October 2014110, Unicom's 4G version of Xiaomi mobile phone 4 was released, supporting TD-LTE/FDD-LTE/WCDMA/GSM. In 2065438+2005 65438+27 10, telecom 4G Xiaomi 4[3] mobile phone was open for purchase.