The Sony Xperia 1 is now available in Europe and will launch in the US in a couple of weeks. This is hands-down the most capable phone Sony ever made, but the competition hasn't been sleeping since its introduction at the MWC months ago. Still, no one has managed to deliver another 4K OLED display - actually, there are no other 4K displays, save for Sony's older "Premium" phones. And despite its singular name, the Xperia 1 is a heir to the Premium family. This 6.5" screen is one of the few to feature a 21:9 aspect ratio, which Sony argues is better for both video watching (e.g. Netflix...
Source: https://www.gsmarena.com/sony_xperia_1_in_for_review-news-37330.php