What is an eSim? How Does it Work?

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By Prince XYZ
Updated at 10/27/2024
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You must have been hearing about the term "eSim" but because you didn't read this guide, one part of you must be asking—what is an eSim? And how does it work? This guide has been out in place to tackle some of the most asked questions about eSim.

Here's a brief of what you'll learn:

  • What is an eSim?
  • Pros & cons of eSim
  • Which US Carrier supports eSim?
  • How does an eSim work?
  • How to activate eSim on your smartphone

What is an eSim?

An eSim is a digital version of the traditional sim card embedded directly into your phone to replace and assume the functionalities of the latter. Just as the prefix "e" in this term stands for embedded, eSim can be a perfect choice for activating different carriers in your phone without the limitations associated with physical SIM cards.

Since the introduction of eSim services into the mobile communication technology, it's been possible to use these devices without having to insert a physical SIM card into your phone—you only scan a QR code and your phone is configured to access your area's cellular network, and assume other services associated with physical SIM cards. That's saying, you can send and receive calls and text messages, plus, store contacts using your embedded SIM card.

How does an eSim Work?

Initially, without a physical SIM card which is manually inserted into your phone, you cannot call or text using cellular networks. But eSim works by challenging such an approach—you only have to virtually embed it into your phone connecting to its appropriate carrier service.

Just as cool as that. But just as noticeable from new technology, there must be both advantages and disadvantages of the conventional sim card over eSim, and vice versa. Let's explore the significance pros and cons of using an eSim.

Pros & Cons of an eSim

Like any new technology, eSim services have their advantages and disadvantages as well. Let's read what Textnowplus has to say concerning eSim innovation:

Pros

Convenience and Flexibility: One of the advantages of eSim over physical simcard is the convenience of use and the flexibility in the aspect of switching between carriers or phone numbers with a few clicks. It's also convenient for international calling without geolocation barriers.

Supports multiple carriers & profile: Just as stated above, eSim is convenient for switching among multiple carriers—with an eSim, you can store multiple carriers which you can switch at will.

Eco-friendliness: eSim evolution would reduce plastic waste associated with the physical simcard. Plus, the emission from shipping to all parts of the world where they are needed. eSim can be more secure from unauthorized access.

Cons

Limited Carrier Supports: At the time being, not all carrier/network providers support eSim. This can be a major setback.

Difficulties in switching between devices: Since a virtual simcard is embedded into your device through laid down procedures, it may be difficult to transfer it to another device without following the required steps.

Limited device compatibility: As a new technology, eSim would only support newly-manufactured devices introduced after the innovation of eSim.

Which US Carrier is Compatible With eSim?

At the time of writing this blog post, the three major carriers in the US (Verizon, AT&T, T-Mobile) have already adopted digital sim. You might want to look into one of the cheapest wireless plans from eSim providers which you can find affordable.

How do I Activate an eSim on my Phone?

Still not satisfied? Need to learn more about how eSim works and how to activate it on your phone? The truth about eSim is the ease of use. You don't have to pay your way to any physical store to get an eSim; you can do it right from the comfort of your home, and better still on your bed. But every other modelity between an esim and physical simcard remains the same.

After deciding on the carrier network, the next step is to pick their plan convenience for you. To finalize your eSim activation process, you might need to contact your carrier provider for instructions on how to activate it on your phone.

FAQs

Can I Have Dual eSim in One Phone?

Yes, a few modern devices have the capability to accommodate two separate eSims, enabling the use of dual eSim on a single phone. But, not every phone supports this function, we recommend checking your phone's compatibility

Can I use both eSim and Physical Sim in One Phone?

Certainly, a large number of smartphones enable users to utilize both an eSim and a physical SIM card at the same time. This is especially beneficial for you, if you need two phone numbers or alternate between carriers effortlessly.

Can I use eSim on Any Phone?

No, eSim technology is only supported by specific devices. As from 2022, major inventions from Apple, Samsung, and Google now come with eSim compatibility, we recommend you to verify your device's specifications.

How do I Know if my Phone Supports an eSim

To determine if your phone is eSim compatible, simply refer to its technical details on the manufacturer’s website. In another approach, access your phone's settings where there is typically a category for handling eSim or inserting a new cellular plan if the option is accessible.