The Different Types of SIM Cards
There are three main sizes of SIM cards in use today: Nano SIM, Micro SIM, and Standard SIM (for older phones). The only difference is the size of the border around the chip, which allows the SIM to fit into different models of phones. The size of SIM card you’ll use depends on the make and model of your smartphone. The majority of modern smartphones take a Nano or Micro SIM, with some older phones using a Standard SIM.
Nano SIM: iPhone 5/5C/5S and up, Google Pixel/Nexus, and Galaxy S7/Note8 and newer.Micro SIM: iPhone 4/4S, older Nokia, LG, Huawei, and Motorola phones, and the Samsung Galaxy J series.Standard SIM: Mostly found in older phones like the iPhone 3GS or the Samsung Galaxy Ace.
For more information on phone models and SIM cards, see this list from whistleOut.
Choosing the Correct SIM Card Size
If you’re ordering a new mobile service, your SIM card will come attached to a larger plastic card. Just pop out the right size chip from the card (but don’t pop it out until you’re sure what size you need).
How to Insert a SIM Card Into an iPhone or Newer Android Phone
iPhones and newer Android phones use a small tray where you can remove and insert your SIM card. On iPhones, this tray can be found on the right side of your phone. On Android, it can be found either on the side or top of the device.
How to Insert a SIM Card on Older Android Smartphones
With older Android smartphones, the SIM card compartment is located under the battery on the back of your phone. You’ll need to remove the back cover of your phone and battery to insert the SIM card.
