This looks to be the same size as the Z...personal experience with the Z and other ~5inch phones says that its really not that big. But i believe this is the biggest phones will get for Flagship non niche products. Unless they manage to cut down on the bezel and make even more room for the screen but keep the same overall size of the phone. Samsung did this REALLY well with the S4 
Anyways I dont think people in here understand that this is supposedly Sony's next flagship phone. Its not a niche camera phone. If you look at the leaked pictures it looks pretty much identical to the Z...thats why i have a big issue with the article when it says compete with Nokia 1020 or S4 Zoom.
I really dont think this phone will be as niche as those phones. This looks to one up current top end phones like the S4, HTC One, iPhone 5S etc.
That being said it probably wont have anywhere near the photo capturing quality of the smarphone/camera hybrids.







