So I need a cheap dongle device thing that has 4K hdmi port on it to connect to any 4K TV and display a single webpage through Google Chrome. It just needs to be easy enough to use for employees to load the single webpage on the TV and that's it. Don't need anything else except a recent version of Chrome that can display all the usual Chrome stuff. It only needs wifi to be able to load that single webpage. If someone restarts it or it crashes, it just needs to be able to load that one homepage full screen.
Anyway any ideas? I know I can spend $200 on a Nvidia shield, but I was hoping for something as cheap as possible. Old laptops would probably work too but I don't want employees fussing around with the thing.
Maybe a Raspberry Pi?