What is a sim card for iPhone? |CanadaUnlocking.com

The Cell phone unlock Specialists

What is a sim card for iPhone?



Having the right SIM card for your iPhone is crucial to getting the most out of your device. However, knowing what kind of SIM card yours has can be a bit confusing. Whether you’re just getting started with an iPhone or upgrading to a new model, it’s in your best interest to fully understand how the SIM card works and how it affects your day-to-day use. If you’ve ever wondered what a SIM card is on Apple’s iPhone or how to find and remove it, read on for all of the answers.


The iPhone SIM card is the key to making your iphone work. The SIM card is what gives your iPhone its connection to the mobile network. If you are traveling abroad and want to use your phone without paying massive roaming fees, the best way to do that is by using an international SIM card. This  post will show you everything you need to know about iPhone SIM cards.


The iPhone SIM card is what enables your iPhone to connect to the cellular network and allows you to access mobile data on a cellular plan. The SIM card also includes the details that allow you to identify your device when you turn it on, as well as where you’re allowed to use it on the network.



When you want to travel abroad, you’re typically able to purchase a prepaid or global data plan in order to use your phone on the other country’s network.These can get quite expensive, though, and since most of us are traveling with our iPhones rather than buying a new phone when we go overseas, this can be a nice alternative.


All You Need To Know About iPhone SIM Cards

They are small, removable smart cards used in cell phones and smartphones to store data such as your mobile phone number, the phone company you use, your billing details and in some cases, your address book.SIM (Short for Subscriber Identity Module) cards can be removed from one phone and inserted into others. This makes it easier to pass phone service and address book information to new phones. Only swap your card to a new phone. Transferring SIM card data is a common feature of the cards, but the iPhone doesn't operate that way. More on what SIM cards do on the iPhone later in this post. SIM cards being exchangeable also makes them useful for international travel. If your phone is compatible with the cellular networks in the country you are visiting, you can buy a new SIM in another country, place it on your phone and make calls and use data like a local one. This is better than having an overseas data plan Not all phones have SIM cards. Some phones have them but don't let you delete them.

What SIM Card Type Each iPhone has

Every iPhone uses a SIM card.

There are four types of SIMs used in iPhone models:

  1. Standard SIM
  2. Micro SIM
  3. Nano SIM
  4. esim or virtual sim

Use a paper clip to remove your old sim card and insert the new SIM card into your locked Phone phone

The complete SIM is the size of a credit card, but the portion that holds essential data can be extracted from the larger card and used on the handset. When the iPhone 4 was released in 2010, it was the first smartphone in any organisation to use the micro-SIM format. The micro-SIM is significantly smaller than the original SIM. The nano-SIM was released on the iPhone 5 in 2012. Nano-SIM is about 12 percent smaller than micro-SIM. This SIM card is integrated into a phone and can be configured for use, including as a secondary SIM, such that one phone has two phone numbers or telephone companies.


The SIM type used by each iPhone is:

iPhone ModelsSIM Type
Original iPhone Standard SIM
iPhone 3G and 3GS Standard SIM
iPhone 4 and 4S micro-SIM
iPhone 5, 5C, and 5S nano-SIM
iPhone 6 and 6 Plus nano-SIM
iPhone SE nano-SIM
iPhone 6S and 6S Plus nano-SIM
iPhone 7 and 7 Plus nano-SIM
iPhone 8 and 8 Plus nano-SIM
iPhone X nano-SIM
iPhone XS and XS Max nano-SIM
iPhone XR nano-SIM
iPhone 11 nano-SIM
iPhone 11 Pro and 11 Pro Max nano-SIM
iPhone 12 and 12 Pro Max nano-SIM eSIM


Some iPad models that connect to 3G and 4G cellular data networks use an Apple-based card called an Apple SIM The iPod touch does not have a SIM. Only devices that connect to cell phone networks need a SIM, and since the touch doesn't have that feature, it doesn't need a SIM card.

What data is stored on iPhone SIM CardsUnlike certain other cell phones, the iPhone SIM is only used to store customer data such as phone number and billing information. The iPhone SIM cannot be used to store contacts or other user data. You may also not be able to back up or read data from the iPhone SIM. Instead all data that will be stored on the SIM on other phones would be stored in the iPhone main storage (or iCloud) along with your music, games, and other data. This ensures that swapping a new SIM on your iPhone would not affect your access to the address book and other data stored on your iPhone.

Where to Find the iPhone SIM on each Model

iPhone ModelSIM Location
Original iPhone Top, between on/off button
and headphone jack
iPhone 3G and 3GS Top, between on/off button
and headphone jack
iPhone 4 and 4S Right side
iPhone 5, 5C, and 5S Right side
iPhone 6 and 6 Plus Right side, below on/off button
iPhone SE Right side
iPhone 6S and 6S Plus Right side, below on/off button
iPhone 7 and 7 Plus Right side, below on/off button
iPhone 8 and 8 Plus Right side, below on/off button
iPhone X, XS, XR Right side, below on/off button
iPhone 11 and 11 Pro Right side, below on/off button
iPhone SE (2nd gen.) Right side, below on/off button
iPhone 12 and 12 Pro Max Left Side, below Volumn buttons


How to Remove SIM from the new iPhone 12

The SIM card tray is located on the same side as your volume buttons on the iPhone 12. Look at the right side of the frame, and both the tray and ejection hole are near the bottom. 

  1. Power the iPhone 12 off completely.
  2. Locate the eject hole on the outer frame of the device.
  3. Using the SIM eject tool (or paper clip), insert it, and gently push the button inside.
  4. The tray will eject.
  5. Carefully remove the tray from the frame.
  6. Remove the SIM card from the tray.


What's the SIM card?

Over the years, SIM cards have changed a lot. Although retaining a relative thickness of just under 1mm, their surface area has gradually decreased from the credit card-sized plates used in the early mobile phones to the nano SIMs of today's devices. Nano SIM has been the fourth-size SIM card standard since its inception. Designated as 4FF or fourth type factor, it measures 12.3mm x 8.8mm x 0.67mm, a reduction of more than 42 times from the start of the SIM. Most citizens, however, are more familiar with the 2FF SIM card, more easily recognized as the Standard SIM card. At 25mm x 15mm x 0.76, it is 3.4 times larger than the existing SIM cards, which deliver the same features in a much more compact box. Some manufacturers also opt to use a micro-SIM format that is just marginally larger than the nano SIM at 15mm x 12mm. Many carriers sell branded SIM cards with cutouts for all three modern sizes, so consumers can choose which version they want to insert depending on their device. There are also adapters so that nano SIM cards can fit into micro SIM or standard SIM card slots.

How is a SIM card working?

The SIM card is also issued by your carrier with the purchase of a phone and is used to store your account data. Since it has a limited amount of memory and a relatively low powered processor, the SIM card not only allows contact between the handset and its carrier but also stores information such as phone numbers, security data and more In recent years, carriers have started to use specialized SIM cards with so-called Protected Elements to store credit card details to allow mobile payments. If your iPhone is out of power and you're desperate to make a call or link to the Internet, you can just swap your SIM to another iPhone and use it with your minutes and data bucket.


How to remove a SIM card from your iPhone

Removing SIM from your iPhone is easy. All you need is a paper clip (or the "SIM Removal Tool" that Apple provides with some iPhone models). Begin by locating the SIM on your iPhone. Unfold a paper clip so that one end of it is longer than the other. Insert the end of the paper clip into the small hole next to the SIM. Press (but not too hard!) before the SIM card tray pops out. Remove the tray and then remove the SIM card from the tray. Fixing this issue involves a very similar technique.

You can remove a SIM card from one iPhone and switch it to another device to make and receive calls to your current phone number. SIM cards only store small quantities of customer data, including your phone number and billing information. They do not store addresses, photos, applications, and other data that need to be transferred separately. SIM cards hold your phone number, and you can't make or receive calls without a card in place. Switching your number and billing data from one iPhone to another is as simple as popping your SIM card into a new unit. (You will need to pass your contacts, images, settings, and other data separately.) iPhone First remove your iPhone case (if you have one to reveal the phone itself. Then get the SIM card ejection tool that you can buy online. Or better yet, huh? Grab a paperclip. Find the SIM card tray; it will be on the right side of your phone (as seen from the front) and it will be shaped like a long thin oval with a tiny recessed hole. The SIM card tray on the right side of your iPhone.Steven John/Business Insider Gently push the tip of your ejection tool or paperclip into the hole and press the bottom of the SIM card tray before the tray pops up.


Having Problems with your iPhone SIM Card?

Here is some easy solutions:

  • Put your iPhone in Airplane Mode

Often by simply switching off cellular data and then switching it on will refresh your phone and help you remember your SIM card again. There are several ways to shut down the data on your iPhone, but the easiest way is to use the iPhone Airplane Mode. Once your iPhone is activated, drag it up from the bottom of the screen. In the upper left corner, tap the Airplane Mode icon that looks like a circle with a white aircraft in the center. Tap the Airplane Mode icon again to turn the data back on. This icon will turn orange while Airplane Mode is on. It will have a clear backdrop when it's off.

  • Turn your phone off and on again

If the quick reset of Airplane Mode doesn't work, use the same strategies that have worked with everything from game consoles to computers for years: turn it off and then back on.

Physically remove and reinsert the SIM card If your iPhone SIM card is not correctly placed into your slot, it won't work properly on your phone. Remove the SIM card using a SIM card removal tool or a paper clip, and reinsert it into your phone and make sure it's in the tray properly.

Why does my iPhone say "iPhone sim not supported?"

An iPhone sim not supported message means that your iPhone is network locked to the carrier that sold the phone.  Here at Canada Unlocking we specialize in iPhone unlock services.   To read about how to fix the Invalid SIM or iPhone sim not supported messages in iPhones go to our unlock iPhone page to read more.


If you have any questions leave them in the comment section below.


cellular unlock