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SIM cards for your Galaxy phone

SIM and MicroSD cards in the tray outside a phone

SIM cards give you access to your wireless service provider's mobile data network so you can make calls, send messages, and more. MicroSD cards, on the other hand, allow you to expand the storage on your phone so you have even more space to save your favorite moments.

Note: Available screens and settings may vary by wireless service provider, software version, and phone model. SIM cards are provided by your carrier or retailer where you purchased the phone. MicroSD cards are optional and must be purchased separately.

Insert the nano SIM and microSD card for S7/Note8 or newer

Important: Be careful not to insert the ejector tool into the microphone hole also located at the top of your phone.

Inserting a Nano SIM and microSD card is really no sweat. Power off your phone and then insert the ejector tool that came with your phone into the hole on the SIM/microSD card tray. Next, you will want to push the tool until the tray pops out. Carefully line up your Nano SIM card with the smaller cutout on the tray, and then place the microSD card on the larger cutout on the same tray. Verify the cards are flush with the tray, and then insert the SIM/microSD tray back into the slot on your phone. Now, power on your phone and you’re good to go!

Note: Not all phone models support microSD cards.

SIM card being inserted into phone

Remove the nano SIM and microSD card

To remove the microSD card, you need to unmount it first. From Settings, search for and select Storage. Tap SD card and then tap More Options. Tap Storage settings, and then tap Unmount. Now you can power off your phone and remove the Nano SIM and microSD card.

Insert the ejector tool into the hole on the SIM/microSD card tray, and then push it until the tray pops out. Remove the Nano SIM and microSD card from the tray and then insert the SIM/microSD tray back into the slot. 

SD card device storage settings menu

SIM card sizes

Important: Some carriers may provide all 3 SIM cards. Be sure to remove the one you need from the pre-scored plastic before inserting into your phone.

Learn the differences between SIM card sizes below.

  • Standard SIM: The largest SIM size, sometimes called Mini SIM and found in older phones.

  • Micro SIM: A medium sized SIM card, popular in previous models. 

  • Nano SIM: The smallest SIM size and used by most new phones.

SIM card sizes for a Standard SIM, Micro SIM, and Nano SIM

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