do not but from fashionlife786! buyers beware: this seller is a fraud. they will take your money and sell you counterfeit product. they sold me a fake phone on ebay and refuse to refund my money.
Do not buy the us unlocked version. You will not be getting timely updates. Just look at the us unlocked s7 they just got 7.0 ending of April. Carrier phones for 7.0 faster.
It us not Exynos. Read the details, it us Snapdragon 835, US Single Sim Version.
I'll repeat the same comment that I did on the S8 plus post, if you buy the Exynos one, AT&T and T-Mobile LTE will work, but it'll be single band LTE since the Exynos variant doesn't support the carrier aggregation used by the US networks. Single band LTE is a lot slower and more congested than using multiple bands which the Exynos S8 can not do in the US.
Wi-Fi calling and VoLTE will also not work.