A SIM – traditionally a small plastic card that slots into your mobile phone – is an acronym for ‘subscriber identity module’. It holds information, such as your mobile number, and allows you to make ...

All modern iPhones and iPads now use nano-SIM cards. Unfortunately, this can be a bit of a problem for anyone switching from an older device, because the nano-SIM is much smaller than the micro-SIMs ...

Changing carriers can be exciting. You might get to pick up a new phone, or maybe you want better coverage in your home area. Either way, you have to know how to get set up. Each carrier tackles SIM ...