Global smartphone replacement rate reached the peak in 2013 when operator subsidies also reached the record high level. However, replacement rate has been experiencing the downward trend from 2014. The downturn track has accelerated recent years, mainly due to de-subsidy shift in major countries, the completion of 4G migration (phone side), smartphone booming in emerging markets, improved smartphone quality, as well as no major hardware innovations. Covid-19 further dragged down global smartphone replacement rate to a record low in 2020. However, the downturn trend would shift from 2021 on-wards 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 2026. 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 life cycle of smartphone ownership across the huge global smartphone market.