What is eSIM? How does eSIM work?

What if you were told that from now on you do not have to insert a separate SIM card in your mobile? A SIM card will already be inserted inside the mobile. But in the initial stage, the SIM will not have any number. Then you will buy a SIM card from the store. But there will be a QR code as a SIM card, not a physical SIM card. By scanning the QR code, you can set the number of the SIM you have purchased in the SIM card already in your phone. In other words, there is no hassle of opening or inserting the SIM card, just by scanning a QR code you can set the SIM card on your phone. This is exactly what is called eSIM.

What is eSIM? How does eSIM work?

Now you may have various questions about eSIM. So today's topic has been arranged with the answers to all those questions. Today's topic will discuss the advantages and disadvantages of eSIM. So let's go to the top.

What is the full form and meaning of eSIM (What is eSIM)?

The full form of eSIM is embedded-SIM. It is a small chip that is attached to the motherboard of the mobile inside the mobile. The information contained in this chip is changeable, meaning you can change the operator of your SIM if you wish.


History of eSIM?

The first SIM cards in the world were the same size as the current credit cards. And it had a maximum storage of 128 kilobytes. Then in 1997 the mini SIM card came on the market for the first time. When the size of the SIM card was equal to the size of the credit card, At that time users could not insert SIM from one mobile to another if they wanted. With the advent of mini SIM card, it has become possible to insert SIM card from one mobile to another. This change of SIM card caused a revolution in the history of SIM cards. Since then, the use of smartphones has been on the rise and new features have been added to the smartphones. Micro SIMs, smaller than mini SIM cards, were introduced in 2003 to keep smartphones slim. In its continuation, Nano SIM, smaller than micro SIM card, came in the market in 2012. Which we currently see on almost all smartphones. Then in 2016 the desired eSIM came on the market which is 16 percent smaller than the Neno SIM card. In 2016, eSIM was first implemented on a Samsung smartwatch.

How Does an eSIM Work?

Generally eSIM facility you can't use on all smartphones. Only those smartphones or smartwatches that have eSIM supported can use it. An eSIM supported device has a SIM chip attached. When you buy a SIM card, the SIM card kit will have a QR code. After scanning the QR code, you can see the steps required to use eSIM SIM according to the model of your device. To set up a new eSIM on your smartphone, you need to purchase a SIM card by registering biometrically or by replacing any SIM you have purchased. Then you need to turn on the internet connection of your eSIM supported smartphone and scan the QR code provided with the SIM kit. Then some steps will be shown on your smartphone. If you follow them, the SIM will be set on your phone.


ESIM in Bangladesh (eSIM in Bangladesh):

On March 7, 2022, Grameenphone launched eSIM facility in Bangladesh for the first time. eSIM supported smartphone users will be able to use their smartphone by purchasing a new eSIM from Grameenphone's online store or physical store. Or they can use their existing SIM by replacing eSIM. And it is hoped that other SIM operators will soon launch eSIM facility in Bangladesh.


Advantage of eSIM:

The advantages of eSIM SIM are many compared to the traditional SIM. First of all you no longer have to carry a physical SIM to use the SIM. And by simply scanning a QR code you can easily change the operator of your SIM. Then comes the issue of the size of eSIM. The size of eSIM is much smaller than the size of a conventional SIM. As a result, it can make the smartphone much slimmer. Outside of smartphones, there are smart devices such as smartwatches, so it is very difficult to insert a physical SIM. But if you want, you can use SIM with eSIM in all these devices as the size of eSIM is very small. You may already know that eSIM was first implemented on a smartwatch. Moreover eSIM is eco-friendly. Since no plastic SIM card is being used, it is much better for the environment.

Disadvantages of eSIM:

In addition to all these advantages, eSIM also has some disadvantages. The main problem is that eSIM is not supported on most smartphones at present. So you can't use your eSIM on any smartphone if you want. However, you can replace your eSIM with a physical SIM if you wish.


We hope you find the answers to most of the questions you have about eSIM in today's article. But, even then if you want to know more about eSIM you can comment in the comments section of this article and you can visit our blog regularly to know more and more new technology updates like this.

Credit: This article was originally published on PriyoTrick

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