Can I install a travel eSIM on a 4G or 5G router?
Only if the router supports eSIM, and most home routers use a physical SIM rather than eSIM. Some newer 4G/5G routers do accept eSIM: look for an 'Add eSIM' option or an EID number in their settings. If your router only has a physical SIM slot, a travel eSIM can't be installed on it — instead, share your phone's internet over Wi-Fi.