The Sony Xperia 5 II (read as "five mark two") is a smaller, more affordable version of the Sony Xperia 1 II. The Xperia 5 II is the first phone to record 4K video at 120 frames per second. Footage is saved as 30fps or 24fps, giving it a dreamy 4x or 5x slow-motion effect. We shot a bunch of slow-mo footage using the Xperia 5 II's Cinema Pro app and we recorded 4K 30fps footage with the phone's default camera app. Take a look.