Micro Sim Card Allows People Worldwide To Use iPhone 4 GSM Device
With a micro sim card, GSM carriers are allowing people, worldwide, to use unlocked iPhone 4 GSM devices. The increasing demand of iPhone 4 GSM devices abroad is also making the Cupertino-based company officially sell unlocked 16 GB iPhone 4 for USD 649 and the 32 GB iPhone for USD749 from this month onwards.
Although every unlocked iPhone 4 bought from Apple is sold without a micro sim card it is not posing a problem for users. This is because supporting GSM carriers worldwide provide an active micro sim card to every user, which acts like a memory card, storing the user's wireless account information.
The micro sim card needs to be inserted into an unlocked iPhone 4, which then needs to be connected to a computer. By opening iTunes, the entire set-up can be completed. However, an iPhone micro sim card is not interchangeable with that of an iPad's.