You’ve just bought yourself an iPhone – welcome to the club! However, while you thought you’d just be able to pop your existing SIM card into your iPhone, you might be wrong. That’s dependant on not ...

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If you’ve bought an iPad with 4G/cellular capabilities (we discuss whether that’s a good idea in our 2015 iPad buying guide) or a new iPhone, you need to buy and install a SIM card. Here, we explain ...

But here's what the nano-SIM will do: create a kind of lock-in. Apple will no doubt be first to market (as they were with micro-SIM) and for a transition period of maybe a year or two, it'll be ...