Laptop for photographer, please help

[kiwi king]

Hello! I am looking for a good laptop for my pictures. I would preferably like a laptop with a very high PPI. Can you please suggest at least 3 options to pick from?

PS: I like to travel a lot. Any price is acceptable. I really don't care about the screen size.

Thanks!

 

[lightsong]

Samsung ATIV Book 9 Plus (3200x1800) 13.3" screen
Acer Aspire S7 (2560x1440) 13.3" screen
Asus Zenbook Infinity (2560x1440) 13.3" screen
Macbook pro stuff (high res) 13" or 15"
Dell XPS 15 (3200x1800) 15.6"