I think you're a little behind on your mobile screen resolutions!
"and many of the latest smartphones can handle 1080p resolution"...
Many many mobiles (mid range and even budget) have been able to handle 1080p for ages. Nexus 5, a cheap £300 handset from the end of 2013 had a 1080p screen, and it certainly wasn't the first, the LG G2 launched earlier in 2013 had 1080p too.
We've moved on since then... Nexus 6 from 2014 had a QHD screen (2560x1440), as did the LG G4. this years 6P and many many many other handsets from Samsung, HTC, etc etc...
Even a windows phone, April 2014 - Lumia 930
Apple were slow adopters, but even they managed to finally get 1080 on the 6 plus model in September 2014.
IIRC Sony have even launched a 4K mobile.