According to the latest research from Strategy Analytics, global dual-SIM smartphone sales will increase by 19 per cent to 514 million units in 2016, compared to 431 million units in 2015. Almost one in three of all 1.6 billion smartphones sold globally will be dual-SIM models in 2016. Dual-SIM smartphones come with two or more SIM card slots and are popular in cost-conscious markets such as India and China. Global smartphone vendors such as Samsung, Lenovo and Micromax are focusing their dual-SIM Android models on these two markets. One notable absentee from the worldwide dual-SIM smartphone market is Apple, however. Release