Nokia Lumia 1520
The device was first announced at the Nokia World event on 22 October 2013 in Abu Dhabi , alongside its mid-range phablet stablemate the Nokia Lumia 1320 and Nokia's 10 . 1 inch Windows RT tablet the Nokia Lumia 2520 . 
<triplet> Nokia Lumia 2520 <subj> Windows RT <obj> operating system