Mobile broadband routers create a Wi-Fi hotspot. In contrast, a "femtocell" brings cellular service inside a home or office (see femtocell). THIS DEFINITION IS FOR PERSONAL USE ONLY. All other ...
Mobile routers are, by contrast, actually not all that different from a mobile hotspot. There are differences, to be sure, ...
While both mesh systems from Google are outdated at this point, but they'll still get you steady and reliable whole-home Wi-Fi.