The Mate 10 Pro remains one of the best devices on the planet, and is currently available for US$550 on multiple retail outlets, a significant price drop from its US$800 launch MSRP. The model on sale is unlocked, comes with 6 GB of RAM, 128 GB of storage, and a US warranty.
https://www.notebookcheck.net/The-Huawei-Mate-10-Pro-sees-a-temporary-price-cut.308398.0.html
As an owner for 6 months after all Note series..., I confirm that "The Mate 10 Pro remains one of the best devices on the planet".