Years ago I bought a 27" 4k Monitor for trading with. I absolutely hated it, way too small, could not see shit in 4k. I ended up giving it away.
So I bought a regular 55" 4K LG TV and boy did that change everything. Lovely charts, easy to read pdfs, online magazines, newspapers, and books are all displayed on the screen and are easy to read. I even went out and bought myself a leather recliner chair and now I sit back with my feet up and enjoy the view :-)))
I also picked up one of these tv soundbars (which is a must-have item) and connect it between the tv and my iPad this way I can display my charts on the tv and view news/Spotify on the iPad. Sometimes I will watch tv shows on the iPad while waiting for trading moves, other times I switch the charts off and just watch movies on the 4k tv, it is really quite versatile. Would I go back to a smaller screen for trading... NEVER.
Xard777