iPhone 6S Price Full of T-Mobile and unlocked worldwide?

Hello,

I had the problem regarding the use of the new iphone 6s abroad US.

I bought from an US apple retail store iPhone 6s Sprint option (not T-Mobile option) and it works perfectly in Romania (Europe) with carrier calls, messages and I can surf on Internet on 4G cellular data. It was paid in full, no contract plan.

Note that the model I bought is iPhone 6s A1688 (it is available at apple store only for Sprint, T-mobile, Verizon options and NOT for AT&T option). This A1688 model is like a "world iPhone", because it is available in many countries around the world, except China and the US AT&T Carrier. For more info please check this link http://www.apple.com/iphone/LTE/ .

Before turning on the iPhone, I replaced the Sprint SIM with my Romanian carrier SIM (in this case, Orange Romania) and activated the phone. As I said it worked perfectly.