As the IFA 2013 show is about to unfold in Berlin, Acer has jumped the gun announcing the first smartphone with 4K video recording support - the Liquid S2. The device comes running Android 4.2.2 Jelly Bean and is powered by a Snapdragon 800 chipset with a quad-core 2.2 GHz processor and 2GB of RAM. At the front you get a 6" Full HD IPS display (368 ppi) covered in Gorilla Glass 3, while inside...
Source: http://www.gsmarena.com/acer_launches_first_4krecording_smartphone__liquid_s2-news-6697.php