LTE WiFi Travel Router (using a cellular LTE/4G network)

An LTE Wi-Fi router is a router that connects to the Internet using a cellular LTE/4G network instead of a traditional wired connection such as fiber, cable, or DSL. 

You put a SIM card with a mobile-data plan into the router. The router connects to the cellular network and then shares that Internet connection through Wi-Fi and usually Ethernet ports.

In Haiti, an LTE Wi-Fi router needs to connect to a cellular network, so you would generally need a SIM/eSIM and data service from a Haitian mobile operator such as: Digicel or Natcom

Think of it as a combination of: Cellular modem + SIM card + Wi-Fi router