The certifications suggest the Xperia Z4’s announcement could come at or around MWC in March.
Did the Sony Xperia Z4 just pass through certification from regulation authorities in the US and Japan? There’s no conclusive evidence to suggest so, but given Sony doesn’t have any other major release in store (at least not one we know of), we most likely are looking at the company’s next-generation flagship Xperia Z.
The FCC listing shows the device as supporting LTE bands 2, 5 and 7, with software version 25.0.A.0.33. Sony fansite XperiaBlog hints that while the build number of the firmware is higher than that of Lollipop for the Xperia Z3 (23.1.X.X.XXX), a higher version number doesn’t necessarily mean that it’s from a flagship device. Over in Japan, a device expected to be the Xperia Z4 was certified for major Japanese carriers NTT DoComo, KDDI, and SoftBank with different FCC type numbers; once again, there’s no telling if this is the Xperia Z4, but given we’re close to the time Sony usually announces its new flagship, there’s little chance of this being a different phone.
Recent rumors peg the Xperia Z4 as having two variants, one with a Full HD display and another with a Quad HD panel, both sized at 5.2-inches. Both models are said to feature a Snapdragon 810 processor (like every upcoming Android flagship), 3/4GB of RAM (depending on market), a 20.7-megapixel camera, a 5-megapixel front shooter, a 3,400mAh battery, and Android 5.0 Lollipop. Like all previous Xperia Z devices, the Z4 should be waterproof as well, likely with a higher IP rating than other devices that will no doubt make their way to market in the next few months. Also, its design could follow Sony’s current design philosophy, though if leaked documents from the recent Sony hack are confirmed to be accurate, the Xperia Z4 could be considerably more attractive than its predecessors.