The alleged Sony Xperia XZ3 spec sheet leaked earlier today, and now some additional info surfaced. User agent profiles surfaced for three different versions of the Xperia XZ3, or at least it seems like these are Xperia XZ3 models, the H8416, H9436, and H9493. In any case, these user agent profiles confirm that the Xperia XZ3 will sport a fullHD+ (2160 x 1080) display, which means we're looking at an 18:9 display aspect ratio here. That info also confirms that the Xperia XZ3 will not sport a display notch, as expected, which is something quite a few users will probably appreciate.
That being said, some additional Xperia XZ3 info surfaced in China, and it claims that the codename of the Xperia XZ3 is 'Akatsuki'. According to that info, the device will be fueled by the Snapdragon 845 64-bit octa-core processor, and it will ship in both 6GB and 8GB RAM flavors. Those two variants of the device will include 64GB and 128GB of storage, respectively, while the source also mentions a 5.99-inch OLED display. Interestingly enough, a spec sheet which surfaced earlier today suggested that the Xperia XZ3 will sport a 5.7-inch display, not a 5.99-inch, and an OLED panel was also not mentioned, and it's unlikely that the Xperia XZ3 will sport an OLED panel. Motion Eye Advanced camera technology is also mentioned in this rumor, and that's pretty much it.
The Sony Xperia XZ3 will probably resemble the Xperia XZ2 which was introduced earlier this year, which means it will be made out of metal and glass, though unlike the Xperia XZ2, the Xperia XZ3 is expected to sport two cameras on the back, just like the Xperia XZ2 Premium. The Xperia XZ3 will probably include 19 and 12-megapixel cameras on the back, and a single 13-megapixel camera on its front side. The device may ship with Android 9 Pie out of the box, though it's more likely we'll see Android 8.1 Oreo included, as the phone is expected to launch in less than a month, during IFA in Berlin.