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E-Sim
What is eSim?
An embedded-SIM or embedded universal integrated circuit card is a form of programmable SIM card that is embedded directly into a device. The surface mount format provides the same electrical interface as the full size, 2FF, 3FF and 4FF SIM cards, ...
Sim
What's SIM?
A SIM card is an integrated circuit intended to securely store an international mobile subscriber identity number and its related key, which are used to identify and authenticate subscribers on mobile telephone devices
