What information is stored on a SIM card?
A SIM card, also known as a subscriber identity module, is a smart card that stores data for GSM cellular telephone subscribers. Such data includes user identity, location and phone number, network authorization data, personal security keys, contact lists and stored text messages.
The short answer: it's a Subscriber Identity Module, a small circuit board in most modern phones to communicate with your carrier. SIM cards allow you to travel between phones with your phone number and data plans; when you upgrade to a new iPhone, the SIM card travels (as long as it is the same size).
- A SIM card, also known as a subscriber identity module, is a smart card that stores data for GSM cellular telephone subscribers. Such data includes user identity, location and phone number, network authorization data, personal security keys, contact lists and stored text messages. GSM devices hold contacts.
- Sim card sizes for other Apple iPhone models:
Apple iPhone 4s Micro SIM Apple iPhone 6s Plus Nano SIM Apple iPhone SE Nano SIM Apple iPhone 7 Nano SIM Apple iPhone 7 Plus Nano SIM
- Once you've completed the set up process, remove the SIM card from the old device, and you will be able to use it without issue. You will need a SIM card to set up your iPhone as a Wi-Fi-only device, but only temporarily. After that, it'll work SIM-free.
You can copy your contacts using the Import SIM Contacts feature in iOS, but because photos are stored on a phone's memory or SD card rather than its SIM card, you need to transfer them to your iPhone using a computer with iTunes installed.
- To do so, insert the old SIM card and go to Settings > Mail, Contacts, Calendar, scroll down and tap Import SIM Contacts. Everything else (photos, etc.) needs to be synced through iTunes. If you can connect your old phone to your computer, you can copy the other things and then sync them to the iPhone.
- Apple's iPhone may not have conventional memory expansion slots, but it's still possible to use MicroSD cards with the device. MicroSD adapters for the iPhone come in a variety of different forms, making Apple's smartphone an even more effective business tool by allowing you to expand its storage capabilities.
- Subscriber Identity Module (SIM cards) are small data chips used to activate your phone. Much the same as a memory card, they store important information from your cell phone, such as text messages and contacts. In addition to storing data, memory cards can save external media files, whereas SIM cards cannot.
Updated: 25th November 2019