What is eSIM? how it’s different than SIM Card? Everything about eSIM

What is eSIM

‘eSIM’ has been in the spotlight since the announcement of Apple’s new Dual SIM phones, the iPhone XS and XS Max. But when you hear eSIM, you might wonder, what is eSIM and how is it different from the normal SIM card? And how can you use e-sim technology on your phone?

eSIM technology

Here, we’ll take a closer look at e-SIM technology.

The smartphones and network carriers are on the way to adopting e-SIM technology. Identically, the eSIM can be a future electronics SIM technology, that will let us use the carrier’s services faster, without using a physical SIM card (or without having a SIM slot on the phone).

As we all know, what is SIM? in short, the SIM stands to ‘subscriber identity module’ that has the user’s unique identity information that is authenticated by the telecom operators or carrier. It’s a physical chip that is compatible to fit into available SIM slot in the phone.

Now let’s move to detail!

What is eSIM?

The term, ‘eSIM’ stands for embedded SIM or ‘embedded subscriber identity module’. The e-SIM card is not actually a plastic card but a small non-removable chip inside your smartphone, that supports network carriers and virtually embedded by them.

The embedded SIM provides all the services like the physical SIM cards, even better. And using eSIM with its supported phones, the related services become much easier. Also, you don’t need to put or swap any physical SIM card into the phone.

with attention to Google’s Pixel 2, it’s the first smartphone to use an e-SIM (only under Project Fi). Similarly, using e-Sim, Apple has introduced products, such as Watch Series 3 and Apple watch 4. Recently launched iPhone dual sim models, iPhone XS and iPhone XS Max, having an eSIM one of the SIMs.

The standard for eSIM is defined globally by GSMA, which is an association of mobile networks.

eSIM and other SIM types

What are the advantages of eSIM?

Using technology is advantageous in many ways for manufacturers, users, and carriers. First of all the e-SIM is rewritable. So, coming from initial setup to changing the data plan, and till adding or removing other services, all are easier and faster with it. you can easily swap your personal and business numbers as well.

1. Advantage for users

After having an eSIM, changing the carrier is just one call away. That means, no need to go into the carrier’s outlet now. Whenever you select a new carrier, it will restore your newly defined identity and information to your smartphone’s e-chip. It’s done virtually through the operator’s system.

  • Changing networks carrier and services are easier using e-SIM
  • No Plastic card, SIM card cut, and adapter required
  • No need to remove e-SIM card

As we know, smartphone manufacturers are currently using three different sizes for SIM. And users need to resize their SIM cards accordingly. With the embedded SIM, you will not need to cut the card. And there is no need to use the adapter to fix it in the available slot. There is no slot with eSIM, its small chip will be fixed in the smartphone already.

For travelers traveling in one country in another country, e-SIM cards can be of better value. Without carrying additional phones, they will be connected internationally through the same e-SIM, swapping the carrier. Although it can apply the charges based on the country and the carriers.

2. Advantages for device manufacturers

At the same time, the manufacturers can save the SIM slot space. Because the normal SIM card and its tray occupy a specific area of the smartphone. In an embedded SIM, no slot is necessary. Therefore, they can theoretically use that space to slim the phone, without sacrificing the battery size. Apart from this, the phone can be very water-resistant, with a waterproof coat without an open SIM slot.

  • eSIM can save SIM slot space, make the smartphone slimmer
  • Better water-resistant outer phone case with no SIM slot

Which devices have eSIM?

Likewise, Apple launched Dual SIM’s iPhone X and XS Max with a Nano-SIM and another e-SIM. The carrier’s app or QR code is required to scan the new Apple iPhone, XS, and XS Max. Apple also integrated eSIM in the new 11-inch and 12.9-inch iPad Pro tablets, along with Apple Watch Series 4 and Series 3.

Similarly, Samsung’s Gear S2 and Gear S3 also support eSIM. However, Samsung hasn’t yet launched a phone that supports this technology. Also, Google’s Pixel 2 and 2 XL, were the first smartphones to support the eSIM after a subscription to Google’s Project Fi service.

Of course, the Pixel 3, Pixel 3a and 3a XL also come with eSIM capabilities. However, eSIM phones and devices are available only for carriers who support this technology.

Which countries and carriers support eSIM?

Get the complete list of countries and carriers who supports the new standard – Click Here


Challenges with eSIM

Today, only some carriers support eSIM technology all over the world, and the rest are still stuck with the traditional SIM card. Similarly, their technical support in different countries is also different.

At the time of the rapid adoption of technology, all operators need to support it. Only then, the technology can be smartphone-familiar and can reach to a greater extent. And these things may take time to execute in full.

Similarly, many users (who are not very tech-savvy) think, the use of traditional SIM is comfortable, and they will not switch it. Apart from this, we should consider the fact that most of us do not want to switch SIM cards. And this can mean that they will not be affected by not being transferred to the new SIM technology.

eSIM outline

It is a unique future technology that is now being adopted by the creators. As can be seen, the world’s leading brands like Apple and Google are taking eSIM technology to their smartphones.

By and large, it will have many advantages such as a smartphone can be comparatively slim, and can also be water-resistant. Apart from this, services can be very fast using eSIM.

Here, all these things are positive in the smartphone world and refer to better changes. But, on the other hand, there are some challenges associated with it. As such, Apple has launched an iPhone using eSIM but all carriers are not supporting e-sim technology. Similarly, Google Pixel 2 uses eSIM, but on limited usability under Google’s US ‘Project Fi.

it’s important to realize that will eSIM be adopted by all the telecom carriers? And, will all users accept it and stop using traditional physical cards, even if they feel a little comfortable with the old?

After all, technology made things better, wait!


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