Nano-SIM

(4FF SIM)

4FF stands for 4th Form Factor.

A SIM card that is simply physically smaller than a traditional (2FF) SIM card or Micro-SIM (3FF) card.

See: SIM

The electric contacts and circuitry of a Nano-SIM are identical to that of a larger SIM card; the plastic part is simply smaller. A nano-SIM can be used in a larger SIM card slot with an adapter.

See: Micro-SIM

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