There’s Bluetooth and USB (with Ghirehtet over ADB or external wireless/Ethernet card) that you can use to make a Wi-Fi internet hotspot without mobile data. Also, you could NOT connect to the internet and use LAN-based apps (KDE Connect, network printers) without extra hardware in a pinch, or just broadcast an SSID in a public space for fun.
Hotspots share your phones mobile data as a local wifi access point. If you don’t have a sim, you don’t have mobile data, and so, no hotspot.
There’s Bluetooth and USB (with Ghirehtet over ADB or external wireless/Ethernet card) that you can use to make a Wi-Fi internet hotspot without mobile data. Also, you could NOT connect to the internet and use LAN-based apps (KDE Connect, network printers) without extra hardware in a pinch, or just broadcast an SSID in a public space for fun.
Absolutely yes. So many phones have USB 2.0, so the Wi-Fi speed is often going to be faster than cable.
what if you want to use the wifi hotspot for a LAN party in a plane?