The Galaxy S5 has a long line of impressive features and one of those being the ability to record 4K video. This video was recorded using the Galaxy S5 in 4K at 3840 x 2160 resolution at 30 FPS. The video is not modified in any way. I imported the video and used Final Cut Pro X to add my intro and watermark, then exported it without any changes to the video or audio.
There is such thing as 720i and 1080i. Also we as the youtube cnmoumity have been spoiled by high grade professional cameras that cost $1000 in videos. This is 720p HD and looks pretty damn good.