Learning the ins and outs of your phone can seem daunting, but fully understanding how it works and all of its features will help you use it to its full potential! For instance, the SIM card. What is it? Does my phone have it? What does it do? This article will help answer those questions and help you learn more about your phone.
A SIM card, also called a subscriber identity module or subscriber identification module is a small memory card that contains unique information that identifies it to a specific mobile network. The actual SIM card is a small, removable plastic card that slots right into your cell phone. SIM cards are typically given to you by your phone carrier and can be moved from phone to phone, giving you access to the same network, messages, and numbers.
What does a SIM Card do?
SIM cards are computer chips that allow you to connect to carrier networks to make calls, send texts and connect to the internet. The remarkable thing about SIM cards is that they can be transferred from phone to phone, which is why carriers like Consumer Cellular allow you to keep your current phone by using their free SIM card. When placed in a new phone, you can retain old contacts, phone numbers, messages, and more.
What is stored on a SIM Card?
SIM cards store data specific to you, such as your contacts and phone number. SIM cards also have an ID number, or international mobile subscriber identity (IMSI), and a personal identification number (PIN) to protect against theft.
What does a SIM Card look like?
A SIM card looks like a small piece of plastic. The important part is a small integrated chip read by the mobile device it is inserted into. The chip contains a unique identification number, phone number, and other data specific to you. If you can believe it, the first SIM Cards were the same size and shape as a credit card! Now, both Mini and Micro-SIM cards feature a cut-off corner to prevent incorrect insertion into the phone or tablet.
Here are the dimensions of the different types of SIM cards:
- Full SIM: 85 mm x 53 mm
- Mini-SIM: 25 mm x 15 mm
- Micro-SIM: 15 mm x 12 mm
- Nano-SIM: 12.3 mm x 8.8 mm
- Embedded SIM: 6 mm x 5 mm
The size of your SIM card depends on the size of your phone and as phone sizes shrink, so does the size of SIM cards. Full-size SIM cards are typically found in older phones like iPhones up to the 3GS and older Android models, while nano-SIM cards can be found in newer model iPhones. On the other hand, you’ll find micro-SIM cards in older Samsung phones but nano-SIM cards in later Samsung Galaxy devices.
How to remove your SIM Card
Removing your SIM Card will depend on your device, but the process is a breeze whether you have an iPhone or Android.
If you have an iPhone, the SIM tray may be on the right side, left side, or bottom depending on your device.
- To pop open the SIM tray, insert a paper clip or a SIM-eject tool into the hole beside the tray.
- Push in towards the iPhone, but don’t force it.
- It will release, and you’ll be able to remove the SIM card from the tray.
If you have an Android –
- First, check if you have a removable back cover (this is typical in older Samsung phones).
- If your phone does, remove the back cover, take the battery out, and slide out the SIM card.
- However, if the back is sealed, look in the product manual to find where your SIM tray can be found.
- Insert the injection pin (or a paperclip) into the hole on the SIM tray and pull it open, removing the SIM card.