Answer ( 1 )

  1. I think it is incorrect to indicate it is the SIM card that determines anything, it is the carrier that allows your access and determines your speed and options for mail, internet or phone access. The SIM basically does what it is told. That said, if you are wondering if the size of the SIM makes a difference then no, it doesn’t. You need to ensure that the phone you have will accept whichever size SIM you need, again, the one supplied by the carrier you choose. The same SIM could provide vastly different service within a carrier or between carriers.

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