The Sony Xperia Z Ultra SGP412 has passed through the United States FCC and with it revealed a number of pictures and a quick manual. The handset looks identical to the one we already know, this particular model is believed to by a Wi-Fi only model. AU by KDDI is also releasing a variant of the Xperia Z Ultra under the SOL24 model number.
Sony had a confidentiality request that expired on the 20 January 2014, which means we could see this being announced very shortly. The manual you see below has references to Sony Mobile Japan support, which could see it launch in the region. AU by KDDI is revealing its Spring 2014 showcase tomorrow morning, so we expect more news then.
Xperia Z Ultra SGP412 FCC pictures
Xperia Z Ultra SGP412 Quick Manual
It is worth noting that the specifications indicated in the manual below appear to be wrong and we think relates for the Xperia UL instead.