Connect with us


SIM Card Types And Uses For Business

Last updated by



You may wonder why we’d publish a business blog on SIM cards. Today, it’s unavoidable to be in business without a smartphone and other mobile devices which can have a SIM card – including your Apple iWatch!

Knowing the types of SIM cards and their uses, you can get greater privacy and security. Plus, avoid sending or sharing information with the wrong recipients, which could end your career or damage your brand beyond repair.

What is a SIM Card?

A SIM card, or subscriber identity module, is a tiny computer chip that securely stores your phone number and other important information so you can make calls and access data services through your mobile device. Did you know there are various names for SIM cards? Maybe you’ve heard them called IC cards, integrated circuit cards, or smart cards.

SIM Card Types

To choose the correct SIM card for your needs, it helps to understand the SIM card types, including:

  • Traditional SIM card
  • Micro SIM card
  • Nana SIM card
  • eSIM card
  • Embedded SIM card
  • Virtual SIM card

Traditional SIM Card

The traditional SIM card uses a single removable chip inside your phone. With a conventional card, you’re not limited to just one carrier; you can switch between multiple pages at will, making it great for consumers who use their phones with various providers.

The drawback to a traditional card is that it has a set memory size, so there’s no room for more information once it’s complete. This isn’t ideal if you have an enormous music library or like to take tons of pictures and videos. Traditional cards are still available in some countries, but they’re quickly being phased out in favour of micro-SIM cards.

Micro SIM Card

A micro-SIM card is a bit smaller than its predecessor—and doesn’t require any additional adapters—but it comes with many of the same benefits. It also allows you to use multiple service providers (like AT&T and T-Mobile) without swapping out your SIM card, making switching plans easier.

However, because it’s smaller than a traditional SIM card, your device may need to be modified slightly to accommodate it. For example, Apple devices won’t accept micro-SIM cards unless they were first unlocked by Apple.

Nano SIM Card

Nano-SIM cards are even smaller than micro-SIM cards—so small that most devices don’t even come with slots for them anymore. If you want to use a nano-SIM card, you’ll need to buy an adapter or pick up a new phone.

While nano-SIM cards offer many of the same benefits as micro-SIM cards, they don’t allow users to swap between multiple carriers. Instead, you must stick with one provider—which might not be ideal if you travel frequently and want access to different networks worldwide.

Additionally, nano-SIM cards only work with 4G LTE networks. That means you’ll need to get a new card when 4G LTE becomes outdated and 5G takes over—assuming your provider hasn’t upgraded all its devices yet.

eSIM Card

An eSIM card lets you connect directly to mobile data without using a physical SIM card. These types of cards are already available on select devices. In addition to offering flexibility and portability,

eSIM cards make it easy to switch between cellular providers—you simply choose your preferred provider from within your device settings instead of physically changing your SIM card each time you want a new plan.

Embedded SIM Card

This type of card lives inside your mobile device. If you have an iPhone, use an embedded SIM (Apple embeds its own SIM inside iPhones).

Embedded cards are popular because they don’t take up much space—think about it: if your phone didn’t have a built-in slot for a SIM, it would need to be thicker to make room. But a bigger phone is heavier and clunkier, so most manufacturers like Apple put in internal slots. The downside is that when your phone breaks or malfunctions, you might not be able to replace just one part; instead, you may have to replace everything.

Additionally, if your carrier goes out of business or stops offering service in your area, you might not be able to get another SIM that works with your device.

Virtual SIM

A virtual, or soft, SIM allows you to use your device in multiple countries by making it seem like you’re using a local carrier. The best part about a virtual SIM is that it doesn’t require a physical card—you set one up online, at home. The downside? You can only change carriers once every three months. Also, while most U.S.-based phones support virtual SIMs, not all do.

However, a virtual SIM is probably your best bet if you have an unlocked phone. (Check out our guide here for more information on unlocked phones.)

In addition, if you’re traveling internationally but don’t want to buy a new SIM card when you arrive in each country, a virtual SIM may be ideal. Virtual cards are also great if you need cell service while traveling abroad but don’t want to pay international roaming fees—just get a temporary plan with enough data to last until you return home.


Although many different types of SIM cards are on the market, most people are familiar with only a few. Remember to look into what kind of card you’ll need before purchasing a mobile device; if your phone doesn’t use your carrier’s brand, you might want to find out more about other options.

Whether you need a simple phone or an all-in-one smart device, it helps to learn what differentiates each kind of SIM card. Now that you know all the different types of SIM cards, you can get the right one from Freeway.