The differences between the international and German versions of the FRITZ!Box routers mainly revolve around the firmware language and availability. Historically, the German version was tailored to the local market, with German language settings and specific cabling suitable for the region. However, it is possible to change the language of a German FRITZ!Box router by updating the firmware to an international version.

In addition, AVM, the manufacturer of the FRITZ!Box routers, is working on standardising the models, which means that in the future there may no longer be a difference between international and German versions. This could lead to a single version for all models and eliminate the difference between international and German models.