Developing markets, in particular, are more likely to want the multi-SIM capability.
It has long been known that in many markets consumers prefer having phones with dual-SIM capability. These phones are capable of switching carriers on the fly, valuable in areas where one carrier has a notably better signal than a competitor. This is especially important in countries like India, where cellphone contracts (and the accompanying handset subsidies) are rare, and most service is done on a pay-as-you-go basis, and roaming charges are still a significant problem for users. In addition, in many countries, some carriers have much cheaper rates when calling to other customers of that carrier (in-network) than calling or texting customers in a competing carrier’s network.
India isn’t the only country where dual-SIM is a popular feature, however. According to OpenSignal, a wireless network analytical company, about 25 percent of all Android users have a phone with multi-SIM capabilities. According to the company's data, while 48 percent of Indian users have a dual-SIM phone, this number is not even close to the highest penetration rate; that honor belongs to Nigeria, where 66 percent of users have multi-SIM devices.
Overall, users in developing nations in Sub-Saharan Africa, South Asia, Latin America, and Eastern Europe are very likely to have or want a dual-SIM device. Below are some of the largest markets where such phones have a penetration rate of 40 percent or above:
• India (48 percent)
• Indonesia (44 percent)
• Bangladesh (63 percent)
• Pakistan (46 percent)
• Philippines (48 percent)
• Thailand (44 percent)
• Ukraine (53 percent)