LG G3 has 4K video recording support UDH at 3840×2160 and I recored this video with the LG G3 outdoors I haven’t done any editing on this video so that you can judge the 4G video recording quality of the LG G3
LG LG3 Unboxing & Hands on Overview http://www.youtube.com/watch?v=g_pLpvHlVdQ
