The income gap within countries is also consistent across regions and differing levels of economic development. In all of the countries surveyed with sufficient sample sizes, people with a higher income are more likely to own a smartphone than people in the lower income bracket.

While the 2015 survey shows only 17 per cent of Indians owning a smartphone, the population of India is well over 1 billion people, so it is still one of the largest smartphone markets in the world.