Using a router abroad

Hi,

Assuming you are using a data sim that is valid in the country in question, then check the router you wish to use supports the frequency bands and standards of the networks/countries you want to connect with. Some info here: https://www.worldtimezone.com/gsm.html

There are different bands and sub bands for 4G and 5G, of course don't confuse this wit the 5G WIFI compatability! 

As an example, the Huawei h112-37x 4G/5G unlocked routers differ mainly on channel band support.  The more bands, the more countries/networks it will work with.  All you would need to do is swap to a local carrier SIM if your Smarty package isn't available and roaming isn't an option.

This is the main consideration as this is a broad question, hope it helps point you in the right direction for further research for your particular circumstances. 

Thank you. That's very helpful. I have an unlocked Huawei I want to try in France. So I'll give it a go with my data package. (What confused me at first was that all advice was aimed at phone users for calls and texts.) Thanks agin for your help.