What's the reason for the mudi device? Why not just use the esim in the iphone and have the iphone in hotspot mode? Just battery life?
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 the house/hotel room/office for whatever reason with my phone but keep other devices connected. In this case the router can either be fixed in place (and plugged in) or travel with me on battery. Flexibility!
A properly functioning phone hotspot is a "real" WiFi network. The ones created by Android devices, at least, are running `hostapd`, which every Linux-based home router is running behind the scenes.
> devices are reluctant to connect to a personal hotspot automatically (Apple devices, at least).
Solution: don't use Apple devices.
1) Tethering to my laptop when I need to check something for work in a pinch
2) Letting friends use my data if they don't have any or have a limited plan
In both cases, I think it makes sense to not automatically connect every time my phone is near.
Too bad it's only 4G, though? I bought my 5G Huawei in 2019! Hopefully they'll come out with a 5G version soon.