Sony Xperia Z2 4K Video Recording Indoors - RAW Unedited Video footage HD

Sony Xperia Z2 has 4K video recording support and I shot this footage indoors in artificial light with the Xperia Z2 in 4K I do notice a lot of video audio syncing issues with 4K video also I noticed when shooting videos / pictures outdoors the camera overheats a lot and shuts down. I have directly uploaded this video without doing any editing to Youtube so that you can judge Xperia Z2 4K video recoding. Xperia Z2 Unboxing & Overview http://youtu.be/mDTO6PbTKJs