Bought online an iPhone 6 at carephonewarehouse.com. Was called sim free, what is for me unlocked. Like the one at Apple - as it is the same price like at Apple. And I do not know why I bought it at carphonewarehouse.com. As my intention was purely to sue it abroad. But it cannot be used with foreign sim cards. And if one sim card was activated in the phone the provider cannot be changed any more. This info can be found some where in very small letters in the bottom of the page. But not linked to the description of the sim free phone above (e.g. through an asterisk). And as said - same price like really unlocked phone at Apple. So I would recommend - never buy at carphonewarehouse, but rather reliably at Apple. Customer service and answers to mails took days, also a nightmare.