No, he never said you can record stills in 4K, he only said that you can record stills when filming in HD meaning 1080P only, I can do that too, I can't figure out the 4K video recording and taking stills at the same time. Maybe it's not possible and most of these sites have a misprint or a misunderstanding and wrote in the wrong info. I don't see why Sony would leave this out, I also own a Sony AX100 a great 4K video camera and it allows me to take stills while recording in 4K albeit not as good as the Sony RX10 MII