The mobile phone segment will continue to grow in 2014 due to strong sales of lower-end smartphones, which has contributed to the increase in the global market share of smartphones — set to reach 71% in 2014, up 17 percentage points from 2013.

As for operating systems (OS), the emerging markets represent an attractive sector for Android, which is set to grow 47% in 2014.

Gartner estimates that in 2015, shipments of Android devices will reach over one billion in emerging markets, driven by sales of lower-cost products.

Apple's new devices, which target the premium market, will continue to help drive iOS volumes. These devices will benefit from a controlled and integrated ecosystem, a focus on the user experience and a leading enterprise tablet position.