standard SIM
A standard SIM, or Subscriber Identity Module, is a small card used in mobile devices to connect to a cellular network. It stores essential information, such as the user's phone number and network details, allowing the device to communicate with the carrier. Standard SIMs are larger than other types, measuring 85.6 x 53.98 mm, and were commonly used in older mobile phones.
As technology advanced, smaller SIM cards, like micro SIM and nano SIM, were developed to fit into more compact devices. However, the standard SIM is still used in some older models and specific applications, ensuring compatibility with various networks and services.