Sony has announced the Xperia Z4, its latest flagship smartphone, in its home country of Japan. Like the Z4 Tablet announced at Mobile World Congress last month, the Z4 isn't a dramatic departure from earlier Xperia devices like last fall's Z3.

The Z4's 6.9-mm-thick, 144g metal-and-glass body is very much in line with the company's prior design language, and houses a 5.2-inch 1080p LCD screen, a 20.7-megapixel camera, a 2930mAh battery, a 2GHz 8-core 64-bit Snapdragon 810 processor, and 3GB of RAM. The phone runs Android 5.0 Lollipop and is water- and dust-resistant. Unlike the Z3, no smaller "Compact" edition has been announced.

As yet there's no word on a release in other regions, but if you've been waiting on a new Sony flagship phone despite the company's mobile troubles, know that there's one coming soon to at least some parts of the world. The Z4 will be out in Japan this summer with white, black, copper, and "aqua green" color variants available.