There are some apps/websites that we use daily in Australia and are not accessible in China such as Facebook, WhatsApp, LINE, and Google services.
Traditionally, we would use VPN and unfortunately it is a hit and miss solution. Sometimes it works and few months later the same VPN does not work anymore. Now, Wilh-ma has solution in their pocket wifi through special roaming agreement that allows us to access blocked sites/apps without VPN.
It means we can simply connect to the pocket wifi and enjoy the benefits of renting pocket wifi such as not paying high roaming bill and be able to access sites/apps that are otherwise inaccessible through most of roaming agreement.