I want to buy a new laptop, full HD or 4k resolution is enough? Any big difference for 15.6" display?
working on small screens probably creates emotional problems for the user. employers need to be aware of this and countering it. dongles with big screens for business laptops at desks should be compulsory for full time employees. the constant straining of the optic nerves and muscles to focus on a small area while interfering with the peripheral vision space is equal to drunk driving.
I had a 15.6" i7 laptop with 1G video card in 2011 and connecting it to a 32" Sony Bravia TV was pretty good even though the laptop screen wasn't even HD resolution. Only pay the extra for 4K if you also have a 4K TV.