The eSIM is a weird technological marvel. Where a SIM (Subscriber Identity Module) is now a baby-fingernail-sized piece of plastic (Nano SIM) with a few circuits within it, an eSIM is the virtual equivalent that’s handled entirely within software. When you want to add or change a telephone carrier service plan, no more fumbling with the Nano SIM and dropping it into a crevice you’ll never retrieve it from. (Don’t ask.) Instead, it can be as simple as clicking a
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