All available units of Xiaomi's Mi 9 were sold out in minutes during the device's first flash sale at a store in Beijing on Tuesday. (Photos: VCG)

Xiaomi launched its new flagship 5G mobile device globally in Barcelona on Sunday at the Mobile World Congress 2019.

All available units of Xiaomi's Mi 9 were sold out in minutes during the device's first flash sale at a store in Beijing on Tuesday. (Photos: VCG)

Xiaomi launched its new flagship 5G mobile device globally in Barcelona on Sunday at the Mobile World Congress 2019.