The appeal of the Netgear Orbi 4G LTE is obvious: it blankets your home in Wi-Fi that connects back to a SIM card, which means that even if your broadband falls over, you can still get online ...

But a bit of hacking allowed him to add a SIM card slot to it. Even though he’s not the one who originally found this hack (XDA thread here), his write-up is definitely an interesting read.