March 2016 update. Here's a list of the best XL-sized smartphones - with screen sizes of 5.5 inches and greater - we've reviewed in the last few months. Our list of top models is regularly updated, maintained and commented on and should assist in purchase decisions.
http://www.notebookcheck.net/Notebookcheck-s-Top-10-Phablets-5-5-inch.161654.0.html
Mate X2 got 10x zoom and big sensors, anything to add?