Earlier quoted context omitted.
A 4G/5G router creates a "real" WiFi network rather than a personal network. Hotspotting is great for 1 or 2 devices, but devices are reluctant to connect to a personal hotspot automatically (Apple devices, at least). You have to manually select/tap the hotspot every time, which gets to be a pain when you have multiple devices and you're using it as your daily, primary internet connection. I might also want to leave…
This. Also, mudi can do everything from act as a WAN, input to a LAN and repeat, connect to a wifi and repeat, and use a SIM for its WAN. Phone hotspot only allows you to take the cell connection and repeat it to other devices via Wifi. It can't repeat a wifi or take a hard wire. Plus no advanced router/switch settings, it just says "use my cell connection and give it to anyone connected to me via wifi"
Too bad it's only 4G, though? I bought my 5G Huawei in 2019! Hopefully they'll come out with a 5G version soon.