Do you need to print your visa when going through immigration in Thailand, or is showing it on your phone sufficient?

It is strongly advised to print out your visa rather than relying on a digital copy on your phone when going through immigration in Thailand. Many users recommend having a printed copy, preferably on A4 paper, for a smoother process. It can help avoid delays caused by phone issues and is preferred by immigration officers, who often scan printed documents. While showing the visa on your phone may be technically possible, having a physical copy ensures better compliance with Thai bureaucratic practices.