Based on the latest key assumptions including the prolonged geopolitical tensions , COVID-related manufacture disruption, as well as the cloudy global economy outlook, TechInsights has lowered the global smartphone sales forecast numbers in 2023 and 2024. In consequence, the smartphone replacement rate will fall even further during the forecast window. In 2023, global smartphone the replacement rate would reach the bottom. We expect global smartphone replacement rate will be rebounded from 2024 onwards thanks to economy recovery and 5G migration. This extensive report forecasts global smartphone replacement rate and replacement cycle for 88 countries worldwide, from 2008 to 2028. 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 lifecycle of smartphone ownership across the huge global smartphone market.