After traveling abroad, where Wi-Fi was not always available, I decided to learn more about
cellular data. I found a website that explains the difference between Wi-Fi and mobile data in a very accessible way. The site has detailed information about the different types of mobile networks, how they work, and what roaming is. It also discusses the pros and cons of using mobile data compared to Wi-Fi, which has been very useful for me while traveling. Thanks to this site, I now have a better understanding of how to optimally use mobile data in different countries.