The Xperia 5 is not the first smartphone that Sony has released with a 21:9 display. We have already seen the Xperia 1 and Xperia 10 trying to distinguish themselves from their peers with this aspect ratio, and now Sony is trying to persuade people that 21:9 is the future with the Xperia 5. Having such a tall display has proven practical in our experience, but the Xperia 5 falls short of expectations in some crucial areas, as our review will reveal.
https://www.notebookcheck.net/Sony-Xperia-5-Smartphone-Review-A-handy-handset-despite-having-a-6-inch-display.442783.0.html