Sony Xperia Z5 Premium has finally come to the US (though not officially), weeks after it was made available in Europe.

Sony Xperia Z5 Premium was unveiled along with Xperia Z5 and Xperia Z5 Compact at the consumers electronics trade fair, Internationale Funkausstellung Berlin, on 2 September. After hitting the stores in some Asian and European countries, the device that boasts of 4K (3840 X 2160) resolution display (806 ppi pixels density) is now reportedly available in the US.

A few websites, including Amazon, have listed both the standard and dual-SIM variants of Sony Xperia Z5 Premium. The standard model is available for $778, whereas the price of dual-SIM variant starts at $783.

It may be mentioned that Sony is yet to officially launch the device in the United States, so the ones currently available on third-party online retailers may not come with the US warranty.

Touted as world's first smartphone with 4K resolution, Sony Xperia Z5 Premium sports a 5.5-inch 4K UHD (3840x2160) display, powered by a Qualcomm Snapdragon 810 processor. It runs Android 5.1 Lollipop, comes packed with 32 GB internal memory that is expandable up to 200 GB, and 3 GB RAM. It also houses a 23MP main camera and a 5MP front-snapper, and has a 3430mAh battery.