Hong Kong version of Samsung Galaxy S8+ with 6GB RAM will be compatible with AT&T, T-Mobile networks33
But there is some promising news out today. Samsung has confirmed that besides mainland China and South Korea, it will be offering the 6GB RAM variant of the Galaxy S8+ in Hong Kong. Your first reaction might be to shrug your shoulders and say "so what?." Ah, but here's the thing. Samsung has said that all of the phones it sells in Hong Kong are unlocked. While the 6GB RAM Galaxy S8+ will be locked to specific carriers in other markets, that will not be the case in Hong Kong.
This means that if your brain keeps bothering you about the 6GB RAM version of the Galaxy S8+, and you just have to have it, there is a way to work it out. You can dig deep into your wallet or purse, and buy the Hong Kong version of the premium model. Insert your AT&T or T-Mobile SIM card, and your brain will finally be able to leave you alone. That is, until the Samsung Galaxy Note 8 is released.
source: SamMobile via SlashGear