TechInsights has lowered handset and smartphone sales forecast numbers from 2023 onwards due to the uncertain China demand after re-opening, geo-political tensions, and macroeconomic headwinds across the globe. We expect global handset and smartphone will continue the downturn track in 2023. Smartphone segment expects to start rebounding from 2024 on. Asia Pacific will remain by far the world's largest region. The "Big Five" countries globally will be China, India, the United States, Brazil, and Indonesia by 2028. Our extensive report forecasts global handset, smartphone, and feature phone sales for 88 countries worldwide for two decades from 2002 to 2028. Every major country worldwide is covered, including United States, China, India, Indonesia, Russia, Brazil, Mexico, Japan, South Korea, South Africa, Saudi Arabia, UK, Germany, France, Italy, Spain, Sweden, and many others. This report can be used by operators, software developers, content developers, handset vendors, component makers, car manufacturers and other stakeholders to determine or prioritize the size and growth rate of the huge global mobile phone market.