The required amount of memory for the VR headset depends on the intended use. Standalone headsets have their own operating system with memory and allow to hold any type of content right in the device. The file size of VR games ranges in the area from tens of megabytes to lower units of gigabytes. In general, a value of 64GB is sufficient, however, if you plan to have more games and applications installed in the headset for a longer time, we recommend choosing a higher capacity (at least 128GB).