How do you say Xiaomi?

Over to the BBC Pronunciation Unit:

…we recommend to our broadcasters:

SHOW mee (-sh as in ship, -ow as in now, -ee as in street, note first syllable stress)

This reflects the pronunciation used by the VP of Xiaomi Global, the Brazilian Hugo Barra, who said shortly after taking up his position in August 2013: “Think of ‘show me’, and then pronounce the first word as if it was ‘shower.'”