SIM cards allow you to swap devices without losing your phone number or other important information about your phone or your carrier. SIM cards are tied to your wireless plan and allow your phone to access your carrier’s wireless network.

You don’t have the right SIM card for your new device? No problem! We sell them for $15. You can add a SIM card to your cart upon checkout. Alternatively, you could stop by your carrier to buy one from them or you could have them trim down your current SIM card to the right size.

The SIM card will need to be in the phone during the activation process. In order to insert a SIM card into a smartphone, you need to use the small tool that comes with the SIM card to pop the SIM card tray open. Once the tray is open, you lay the SIM card flat into the tray. Like a puzzle piece, you need to match the shape of the SIM card accordingly into the SIM card tray. After you have done that, gently push the SIM card tray back into place. Once you are ready to use your new SIM, call your carrier and ask them to transfer your phone number, wireless plan, and access to your carrier’s wireless network.

Once the phone is activated, you’re free to remove the SIM card and use it on WiFi.

Here’s a handy list of all the smartphones we carry and the corresponding SIM card size you’ll need:

Micro-SIM Card               

iPhone 4s

Samsung Galaxy S4

Samsung Galaxy S5


Nano-SIM Card

iPhone 5

iPhone 5C

iPhone 5S

iPhone 6

iPhone 6 Plus

iPhone 6S

iPhone 6S Plus

iPhone SE

iPhone 7

iPhone 7 Plus

iPhone 8

iPhone 8 Plus

iPhone X

Samsung Galaxy S6

Samsung Galaxy S6 edge

Samsung Galaxy S7

Samsung Galaxy S7 edge

Samsung Galaxy S8

Samsung Galaxy S8 Plus