I'm thinking to get an external monitor for my MacBook Pro Retina display (late 2013 model).
What I would like to have is to get a 4K monitor or QHD monitor (Dell U2515H or P2715Q).
What I'm worried about is the font and icons size on the external monitor. Should I expect them to be tiny and hard to read text?
My graphic card is Intel Iris 1536 MB.