"This growth was led by strong smartphone sales in emerging markets (excluding China); the fastest growing regions were emerging Asia/Pacific, Eastern Europe, and the Middle-East and North Africa," Gartner said in a statement.
Due to these high-performing regions, the emerging markets achieved a 40 percent increase in sales during the quarter.
In terms of overall mobile phone market (smartphone and feature phone), sales grew 2.5 percent to 460.2 million units in the reported quarter from 448.9 million units in March 2014 quarter.
Samsung led the market with 21.3 percent share, followed by Apple (13.1 percent), Microsoft (7.2 percent), LG Electronics (4.3 percent) and Lenovo (4.2 percent).
During the said quarter, local brands and Chinese vendors came out as the key winners (in smartphones) in emerging markets, Gartner Research Director Anshul Gupta said.
Lenovo, Huawei and LG Electronics followed in the smartphone tally with 5.6 percent, 5.4 percent and 4.6 percent share, respectively in the reported quarter.