"Worldwide mobile phone sales to end users totalled nearly 478 million units during the third quarter of 2015. Continued growth in emerging markets helped bolster sales of local brands. As a result, Micromax Informatics cemented its place among the top 10 global mobile phone vendors," Gartner said.
The sales were up by 3.7 per cent during the third quarter of 2015 from the same period in 2014, the firm said.
Samsung maintained its global leadership with sales growing by about 9 per cent year-on-year to over 102 million units and was followed by Apple which registered 20.6 per cent growth in sales at over 46 million devices.
Microsoft Devices occupied third spot globally with sale of 30.29 million devices in the reported quarter despite decline of about 30 per cent in its sales compared to the third quarter of 2014.
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Microsoft was followed by Huawei, LG Electronics, Lenovo, Xiaomi, TCL Communications and ZTE in terms of unit sales in July-September 2015 period.
"The availability of affordable smartphones in emerging markets saw consumers upgrade their 'feature phones' to smartphones more quickly because of the small price gap," Gartner Research Director Anshul Gupta said.
Smartphone sales in emerging markets alone increased by 18.4 per cent to 259.7 million in the third quarter of 2015 over the third quarter of 2014.
"Sales in mature markets saw growth of just 8.2 per cent over the same period," Gupta said.
In the smartphone operating system (OS) market, Apple's
iOS continued to see strong performance and grew 21 per cent, above market average.
Android platform gained 1.4 percentage points in share year over year due to strong smartphone sales from Samsung and Huawei globally, the firm said.
Android platform led global market with 84.7 market share followed by Apple's iOS with 13.1 per cent share, Windows 1.7 per cent and BlackBerry 0.3 share.
"Despite the announcement of Windows 10, we expect Windows smartphone market share will continue to be a small portion of the overall smartphone OS market as consumers remain attracted by competing ecosystems," Gartner research director Roberta Cozza said.