Comments made here are simply incorrect. At 13.3", a FHD is very noticeably inferior to higher resolutions. I am talking about the average eye, at average screen distance. I encourage everyone to see for yourself by comparing side-by-side two screens. I.e., it is untrue that more than 180ppi is not discernable to the human eye. Note that FHD only has 165ppi at 13.3". An ideal pixel densitiy is 220ppi. This is the case for 1440p screens at 13.3". So I encourage you to get 1440p 13.3" screens. 1800p @13.3" however is indeed an unnecessary burden on the battery in most usage situations. However, note that if you are mostly on AC/plugged in, I would even recommend 1800p over 1440p provided it has good contrast. You will even see an improvement in readability, i.e. the 1800p will be easier on your eyes with small fonts. This has to do with clear type etc. Small fonts will appear somewhat more grayish at 1440p than at 1800p.1800p will need fewer gray pixels to smooth the edges.