THIS is to say...

Thanks for your email about your PS4.

Unfortunately the PS4 is currently only available in these resolutions 480p, 720p, 1080i, and 1080p. 4K is not yet available on the PS4.

I hope that this helped but just drop me a line if you need any more help.

Thanks!

Alexander
PlayStation Support

#####END EMAIL REPLY FROM SONY####

I think this guy is misinformed . Sadly, the person working at the customer service level is often unequipped to properly answer questions when dealing with massive global corporations. They're just trying to close their ticket queue.

Display HDMI (480p, 720p, 1080i, 1080p, and 4K for pictures and videos only)