Xiaomi's market share has been growing rapidly over the last few years but its growth in terms of smartphone unit shipments has slowed down recently. Still, in the second quarter of this year, the company shipped 17.9 million units and commanded a 5.3 percent market share. The past few years have seen Xiaomi selling high-spec low-cost smartphones to users to build up an install base in order to be able to launch a service like Mi Mobile, analysts said.
"This service is one of the first services to address the long-term strategy. But to be able to succeed in that they need the install base and that has what they have been creating and not just in China but abroad too. When Xiaomi moves to other countries I expect to see similar services," Jeronimo added.
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The Mi Mobile service makes Xiaomi a mobile virtual network operator (MVNO). In order to run this operator service, Xiaomi is essentially renting capacity from existing carriers -- in this case, China Unicom and China Telecom. This means that it won't have to build costly infrastructure.
Xiaomi's SIM cards are also able to be used in different phones, meaning it will be able to attract users who are using other devices to its services. This could open up the potential for bundle deals where Xiaomi sells its Mi Mobile service with one of its handsets for a cheaper price.
Xiaomi is not the the only smartphone manufacturers that is also an MVNO. Earlier this year, Google announced it was building an MVNO service on a "small scale" in the U.S.
At the same time as announcing its MVNO service, Xiaomi also took the wraps off its new 5-inch Mi 4c flagship smartphone that costs 1299 yuan ($204).