>>janand+(OP)
Just bought a Gl.iNet Puli. It's only 4G but seems like a better option if you want to supply internet to some devices that you move around. Planning to use it for setup and management of a headless presentation PC as it can directly be connected to the LAN port.
>>walter+J6
I have a mobile 4g router from them and it supports physical esim. I even managed to get their suggested card for cheap. They have some support in their firmware to set it up, so you can do that fully on the router.