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What is eSIM? How it works?

What is eSIM? How it works?

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Hello friends, in today’s article, we are going to give complete information about eSIM. Whenever we buy a phone, we definitely put a SIM card in it.

Because without a SIM card, we can neither call from the phone, nor can we send messages nor can we take advantage of Internet services. In such a situation, a SIM card is necessary.

But now we will not need to insert a SIM card in the phone. Because e-SIM will already be installed inside the phone. Which will work exactly like a physical sim card. But the question is, is this e-sim and how does it work? Also, what is the process to activate it? Let us know about it in detail.

Initially, we used mini sim cards. But with time the size of the SIM card kept getting smaller, and the mini-SIM started running from micro SIM and then Nano-SIM. But now Nano-SIM also has a smaller form ie E-SIM card. Which is a virtual sim card.

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This is to say that along with the size, the technology of SIM card has also changed completely, and the physical SIM card is now a thing of the past. Now is the time of virtual sim card ie e-sim card which is a new technology.

It is very easy to use and advanced. Also, the physical SIM card is fully ready to replace. But the question is, what is this e-SIM? And how will it replace the physical SIM card? Let’s know.

What is eSIM?

What is eSIM? How it works?
What is eSIM? How it works?

eSIM stands for Embedded SIM. That is, Embedded is a Subscriber Identity Module. Actually, it is a virtual SIM card that is embedded with the phone as a chip.

That is, it is connected with the phone. Let’s say that there is only one part of the phone, which you cannot separate from the phone. And since eSIM is a virtual SIM card. So it works with the help of software.

In simple language, an eSIM card is like the internal storage of the phone, in which you can write any data. That is, it is rewritable. Also comes pre-installed inside the phone.

In such a situation, you cannot remove it from one phone and put it in another phone. But if you are going to sell your phone, then you can activate the e-sim number in it and activate it on another phone. Let us know that the e-SIM card can be configured with any network operator.

How does E-SIM work?

When you buy a phone with an e-sim, the e-sim in it is completely empty. In such a situation, he has to contact the service provider to activate.

The service provider gives you a QR code, which activates the SIM in the phone as soon as it is scanned. And you can take advantage of all the facilities. This entire process takes about 2 hours.

I would like to tell you that at present, only Airtel and Jio are such service providers in India, who are providing e-SIM service, the rest of the telecom companies do not have this facility.

In such a situation, if you are not a customer of Airtel or Jio, then you will have to get your number ported to Airtel or Jio. Only then you will be able to avail the E-SIM service.

But the question is, what is the process of activating e-SIM? Which documents are required for this? So for this both Airtel and Jio have different ways. Let’s know about both.

How to Activate eSIM?

First of all, you have to decide whether you want to get a new number or change your existing number to eSIM. If you want to change the existing number to this eSIM, and you do not have the SIM card of Airtel or Jio.

So you can get your existing number ported to Airtel or Jio. But if you do not want to have your number ported, you can also buy a new number of Airtel or Jio. Your wish is yours. Well, now it is the turn to activate eSIM. So this is not a very difficult task. It is very easy.

How to activate Airtel’s eSIM?

If you are a customer of Airtel And want to change your existing number to eSIM. So type eSIM <space> Registered Email ID and send it to 121. For example, if your email id is [email protected], type eSIM [email protected] and send it to 121.

As soon as you send this message, you will receive a confirmation message. In which you will be asked if you really want to convert your physical SIM card to eSIM. you have to send a reply by writing 1. Which means yes. And you have to answer it within 60 seconds.

Because after 60 seconds the message will expire. Well after confirmation, a mail will be sent to your email id in which you will get a QR code. You have to activate your SIM by scanning this QR code. But the question is how? So the answer is very simple.

If you are an iPhone user, then go to your phone settings and tap on the mobile data, then tap on the Add Data plan and finally tap on the scan QR code and scan the QR code with the help of the camera.

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If you are an Android user, then go to your phone settings and go to network security, go to the mobile network, then carrier and add carrier within the advance. And finally, scan the QR code using the camera.

How to activate jio eSIM?

If you are a Jio user, then take your phone with this SIM and go to the nearest Jio Store or Reliance Digital Outlet. And fill your CAF from there and submit it. Write your live number and IMEI number of the phone in the form.

Because it is necessary. After submitting the form, the Jio executive officer will check your form. And will verify the details you have given, and then generate a QR code through a POS (point of sale) machine.

This QR code will be scanned from your phone and after that this SIM will be activated.

What are the advantages of eSIM?

If eSIM is called future technology then nothing will go wrong. Because in the coming time only eSIM will be seen in every smartphone.

Now you will ask why? So it is because eSIM has many advantages. What are the benefits, let’s know.

  • Space-saving:

Due to eSIM, there is no separate SIM card tray in the device. This saves space. And this remaining space can be used for another important component.

  • Anti -Theft

The biggest advantage of an eSIM card is that it can neither be lost nor stolen. If the phone is stolen then the matter is different. But it also has an advantage. Actually, thieves cannot remove the SIM card from the phone, and it is easy to catch.

  • Less Battery Consumption

eSIM works with the help of software. So it consumes less battery instead of physical sim card.

  • Network Switching

It is quite easy to change the service provider with the help of eSIM. Like if you are an Airtel customer. And want to take service of Xiao. So you can avail the services of Jio without changing your number and without changing the SIM card.

  • Best For Travlers

It is nothing less than a boon for travelers traveling abroad. Because it avoids roaming charges to the traveler.

  • Better Security

If the expert believes, eSIM is more secure than physical SIM. In such a situation, eSIM is a better option even in terms of security.


There are many benefits of eSIM. But there is also a disadvantage. Actually, it cannot be removed from one phone and inserted into another phone. Because it is attached to the phone.

In such a situation, if your phone is going to shut down due to low battery, and whether you want to remove the SIM card and insert it in another phone. So that the necessary calls and messages are not missed.

So it is not possible. However, this can be solved through call forwarding. But it is also necessary to have a second phone and SIM card.

What is eSIM? And full information about how it works would have been received. Now if you have any question about this topic, then you must tell us. If you liked this article, like and share it.

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