![]() Beginning with iPad and the iPhone 4 in 2010, this smaller size was introduced and more and more new devices are using it now. ![]() ![]() This used to be the standard for many years from 1996 and still is the most common size around. All GSM-based phones use the same size of chip, but the plastic frame around it, comes in 3 different sizes: The SIM (= Subscriber Identity Module) card identifies the user in the network.
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