You don't need this. Strictly speaking, we don't need much.
But a travel router can be nice to have.
I bring some tech with me when I travel.
Obviously a phone, but also a decent-sounding smart speaker with long battery life so I can hear some music of my choosing in decent fidelity without using Bluetooth [bonus: battery-backed alarm clock!], a laptop for computing, a streaming box for plugging into the TV, maybe some manner of SBC to futz with if I'm bored and can't sleep during downtime.
All of this stuff really wants to have a [wifi] connection to a local area network, like it has when I'm at home.
A travel router (this one, or something from any other vendor mentioned in these threads, or just about anything that can run openwrt well) solves that problem.
All I have to do is get the router connected to the Internet however I do that (maybe there's ethernet, decent wifi, or maybe my phone hotspot or USB tethering is the order of the day), and then everything else Just Works as soon as it is unpacked and switched on.
And it all works togetherly, on my own wireless LAN -- just as those things also work at home.
Bonus nachos: With some manner of VPN like Tailscale configured in the router, or the automagic stuff this UBNT device is claimed to be able to do, a person can bring their home LAN with them, too -- without individual devices being configured to do that.
I think travel routers are pretty great, myself.
(But using Ubiquiti gear makes me feel filthy for reasons that I can't properly articulate, so I stick with things like Latvian-built Mikrotik hardware or something running OpenWRT for my own travel router uses.)
In my opinion, you only need this if you don't like connecting to unknown (insecure or suspect) network to get access to the internet. Ideally, you would configure this kind of router to connect to a VPN so that as soon as it connects to the internet, it immediately logins to the VPN and reroutes all your network traffic through it. This makes it more difficult for someone to hijack your connection or crack it. From the comments it also appears that some people use it to connect to their home network, either to access their home server or to use as VPN (this can help you get around geo-fence and unnecessary additional authentications that some services require for fraud prevention). Some travel routers can also combine 2 or more internet connections (public WiFi + mobile data) to provide you a more stable internet connection, which is often desirable.
You have a workplace that insists you are working from your home while you travel.
It has limits, like the amazon hardware keypress thingy with north korea showed recently, but unless your working at superbigtech or defense contractor it would probably work.
connect screenless devices, e.g., Echo Dot
extend weak wireless range in hotel
screen share or network between multiple devices eg travel with two laptops and can virtual KVM
only have to do the captive device on one - many hotels limit number of devices
extra security buffer
phone can't bridge wifi for headless like this
etc etc
You don't need this. Strictly speaking, we don't need much.
But a travel router can be nice to have.
I bring some tech with me when I travel.
Obviously a phone, but also a decent-sounding smart speaker with long battery life so I can hear some music of my choosing in decent fidelity without using Bluetooth [bonus: battery-backed alarm clock!], a laptop for computing, a streaming box for plugging into the TV, maybe some manner of SBC to futz with if I'm bored and can't sleep during downtime.
All of this stuff really wants to have a [wifi] connection to a local area network, like it has when I'm at home.
A travel router (this one, or something from any other vendor mentioned in these threads, or just about anything that can run openwrt well) solves that problem.
All I have to do is get the router connected to the Internet however I do that (maybe there's ethernet, decent wifi, or maybe my phone hotspot or USB tethering is the order of the day), and then everything else Just Works as soon as it is unpacked and switched on.
And it all works togetherly, on my own wireless LAN -- just as those things also work at home.
Bonus nachos: With some manner of VPN like Tailscale configured in the router, or the automagic stuff this UBNT device is claimed to be able to do, a person can bring their home LAN with them, too -- without individual devices being configured to do that.
I think travel routers are pretty great, myself.
(But using Ubiquiti gear makes me feel filthy for reasons that I can't properly articulate, so I stick with things like Latvian-built Mikrotik hardware or something running OpenWRT for my own travel router uses.)
In my opinion, you only need this if you don't like connecting to unknown (insecure or suspect) network to get access to the internet. Ideally, you would configure this kind of router to connect to a VPN so that as soon as it connects to the internet, it immediately logins to the VPN and reroutes all your network traffic through it. This makes it more difficult for someone to hijack your connection or crack it. From the comments it also appears that some people use it to connect to their home network, either to access their home server or to use as VPN (this can help you get around geo-fence and unnecessary additional authentications that some services require for fraud prevention). Some travel routers can also combine 2 or more internet connections (public WiFi + mobile data) to provide you a more stable internet connection, which is often desirable.
You have a workplace that insists you are working from your home while you travel.
It has limits, like the amazon hardware keypress thingy with north korea showed recently, but unless your working at superbigtech or defense contractor it would probably work.
connect screenless devices, e.g., Echo Dot extend weak wireless range in hotel screen share or network between multiple devices eg travel with two laptops and can virtual KVM only have to do the captive device on one - many hotels limit number of devices extra security buffer phone can't bridge wifi for headless like this etc etc