Android (operating system) store, and by September 2013, one billion Android devices have been activated. , the Google Play store has over 2.7 million Android applications published, and , apps have been downloaded more than 65 billion times. The operating system's success has made it a target for patent litigation as part of the so-called "smartphone wars" between technology companies. Android devices account for more than half of smartphone sales in most markets, including the US, while "only in Japan was Apple on top" (September–November 2013 numbers). At the end of 2013, over 1.5 billion Android smartphones have been sold in the four
Xiaomi Redmi Redmi phones has included the notion that the firm may be exaggerating its sales by releasing them in small batches, causing them to quickly sell out. On August 4, 2014, "The Wall Street Journal" reported that in China's smartphone market, Xiaomi overtook Samsung in the second-quarter of the 2014 fiscal year with a 14% market share in smartphone shipment rankings, while Samsung had a 12% market share during this time. Additionally, Yulong and Lenovo both had a 12% market share during this time. Redmi sales were attributed as contributing to Xiaomi's increased shipment rankings in the smartphone market. Conversely, in