We forecast global smartphone user base will increase 18% from 2020 to 2024. Africa and Middle East will enjoy the highest growth rate, followed by Asia Pacific and Central Eastern. The smartphone penetration rate will continue to grow, and North America and Western Europe will lead with the higher penetration rates worldwide. This extensive report forecasts global smartphone user population penetration and household penetration rate for 88 countries worldwide, from 2007 to 2024. Almost every major country worldwide is covered, including United States, China, India, Indonesia, Japan, South Korea, Russia, Brazil, Mexico, South Africa, Saudi Arabia, UK, Germany, France, Italy and Spain. This report can be used by operators, software developers, content developers, handset vendors, component makers, car manufacturers and other stakeholders to determine the distribution of smartphone ownership across the huge global smartphone market.