Although unofficially, the Sony Xperia Z5 Premium goes on sale in the US. The third-party retailers including Expansys and Amazon are selling the single as well as the dual-SIM variant of the smartphone.
In terms of pricing, Amazon has listed the single SIM variant for $778 and dual-SIM model for $783, while Expansys is selling both the smartphone variants for $780 and $790, respectively. As mentioned above, the phone is not officially launched in the country, so you will have to compromise with the warranty. Also, it works only with GSM carriers like AT&T and T-Mobile.
For those who are not aware, the Xperia Z5 Premium features a 5.5-inch 4K display, and is powered by an octa-core Snapdragon 810 processor and Adreno 430 GPU. It packs 3GB of RAM along with 32GB built-in storage (expandable up to 200GB). Juiced up by a 3,430mAh battery, the Z5 Premium features a 23-megapixel primary camera and a 5.1-megapixel front-facing shooter. Full Specs of Xperia Z5 Premium