Can i buy an iPhone 6 plus in America and use it in the UK?

Can i buy an iPhone 6 plus in America and use it in the UK?

Added (1). i want to buy my iPhone 6 and use it in the UK, but will it work, i saw the T-Mobile sim but will it work in the UK with all the network and different capabilities?

Used to be problem with 4G but not sure if that is still the case. You'll need to get a suitable UK charger - don't buy the cheap copies.

Yep, the T-Mobile unlocked version will work fine in the UK or anywhere in the world.

It depends on the laws in your country I guess. Different countries have different trade laws and other crazy laws. Lol