Is a micro-SIM the same thing as a micro-SD card?

Is a micro-SIM the same thing as a micro-SD card?

A Micro-SIM is a miniature form of SIM card and is often used in the latest smartphones. SIM cards are primarily designed to connect you to a mobile network, allowing a user to use the communicative functions of a mobile. On the other hand, Micro-SD cards are designed to store information which cannot be held on a phone’s handset. These memory cards can be used to hold downloaded music, apps or pictures.

Therefore, Micro-SIMs and Mirco-SD cards are fundamentally different.

We have discussed the differences between SIM cards and Micro-SD cards before, you can view the post here.

If you have a question you would like us to answer, comment below or tweet us @JustAskGemalto.


  • kajal

    SD card reader is an external device with a corresponding SD card space and also a USB interface that uses particularly for reading SD card. The most extreme size of the cards is that of SD or SD HC cards and the little ones require an adapter that scales them precisely to the size of a standard SD card reader.

    • Brands2Life

      Thank you for your email.

      I’m out of the office on annual leave and will be back on Thursday 22th August. If you need immediate assistance please contact Otherwise I will respond to your emails as soon as possible upon my return.
      All the best,