Sony has unveiled the latest Xperia Z4 smartphone in Japan, almost a month after it had been expected to be shown off at Mobile World Congress in Barcelona.
The Xperia Z4 has a similar IP-certified design to its predecessor, the Xperia Z3, and features a 6.9mm thick, 144g mixed metal and glass body.
The IP certification means that the Xperia Z4 is dust and water resistant. Most of the changes are under the hood and the Xperia Z4 features a number of upgraded internal components.
Key features include a 5.2in, 1920×1080, 1080p LCD screen and impressive 20.7MP rear camera with Sony's back-illuminated stacked Exmor RS CMOS sensor for mobile and Optical Image Stabilisation technology.
Sony has also upgraded the Xperia Z4's front camera, loading the handset with a 5.1MP with Exmor R mobile sensor and wide-angle lens.
The Xperia Z4 uses a 2GHz, octa-core, 64-bit Qualcomm Snapdragon 810 processor, alongside 3GB RAM and a 2930mAh non-removable battery.
The specs put the Xperia Z4 on a par with most other 2015 top-end smartphones, such as the HTC One M9.
The Xperia Z4 is set to launch at an unspecified point this summer in Japan costing ¥7,000 (£762).
There is currently no word on the Xperia Z4's European price, or whether it will ever be released in the UK. A Sony spokeswoman told V3: "We are considering the feasibility in other markets."
The use of Android Lollipop is likely to prove a key selling point for business buyers.
The mobile OS was launched on Google's Nexus 6 and Nexus 9 devices in October 2014 and, as we noted in our review, Android 5.0 Lollipop is a milestone update that adds several key features and services.
These include a reworked Material design and notifications system, improved encryption and a custom SELinux enforcing mode.
The use of Lollipop also means that the Xperia Z4 will be compatible with Google's newly launched Android for Work mobile management software.
Check back with V3 for further news updates on the Xperia Z4.
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