Best dongle for mirroring screen to non-smart TV?

[scythefwd]

late, but just done this at school.. I setup a hotspot on my phone with the same credentials as my home network.. hooked the chromecast into that hotspot, and screen mirrored my phone to it.. so I know that works (I plan that exact setup in my car in the next year or so...)

 

[Mohd Waqi]

OK, here are my test results:
1) You DO need WiFi to do screen mirroring (or for the Chromecast to work, period!) and you need to be in the same WiFi for it to work (I did try with two different routers and if on different WiFi networks, the Chromecast app, where you have the screen mirroring option, doesn't find the Chromecast).
2) You DON'T need Internet for Screen Mirroring to Work, so if you're in a hotel, you can set up your laptop to act as a hotspot and connect both Chromecast and phone to it, even if it doesn't have internet...and if it does, well, it'll just share it.

Thanx a lot even i wanted to know about it. Thanx