The BlackBerry Z30 gets lined up next to the Sony Xperia Z1 device, as you could see both are rather large in size sporting that 5 inch HD display. Based off the images the devices are very similar in size, the Sonly Xperia Z1 is squared while the Z30 is a bit more rounded with some gloss around the edges.
Check out the other side-by-side image below:
Those of you interested in phablets or that bigger screen real estate then the Z30 is definitely for you, for more info on the Z30 check out the Z30 section, feel free to discuss in the forum.