Even though mobile plans have recently shifted to an unlimited data model, there still aren't any options for unlimited WiFi data on a dongle. Optus is the first provider to offer unlimited data on its 5G Home product but that's still a home broadband solution, not a portable WiFi dongle. Still, if you really need unlimited data on the go, we recommend checking out an unlimited mobile plan provider like Felix Mobile, which allows you to tether your phone's WiFi connection using a personal hotspot.