Things you don't know about eSIM

eSIM is a new term in the world of technology village recently, it appeared almost the same time the iPhone series X launched (iPhone Xr - iPhone Xs - iPhone Xs Max). And ever since then, eSim has always been a hot keyword, has been much searched and most interested in recently.

Although it appeared at the same time iPhone X, but there is a large part of iDevice users do not know the existence of eSIM, even proved not to care because "eSIM only works for iPhone X". So what is eSIM really? How does eSIM work? Or what effect does eSIM have? Invite you to learn through the article below.

What is eSIM?

If you don't know, eSIM is basically just a regular phone SIM. However, instead of being made of plastic as it is now (physical SIM), this SIM is made up of many small electronic circuits and has more features and uses than usual.

So eSIM has another name that is simpler and easier to remember, namely electronic SIM .

When did eSIM appear?

In fact, eSIM first appeared in the world around 2016 , which is also the time when we saw the launch of Samsung Gear S2 smartwatch. However, it wasn't until Apple released its latest iPhone with integrated eSIM that the world really knew and cared about it.

SIM size changes over time.

Effect of eSIM

Not only does it work at a basic level such as support for listening, calling, texting and making regular communications, but eSIM also has a lot of other extensible and outstanding features, such as: changing networks without changing SIM, go abroad do not need to buy domestic SIM . In addition, at the macro level, the regulation and use of eSIM worldwide also helps businesses save more costs and labor than they do. with before.

How does eSIM work?

With its special design, eSIM can be considered as an integral part of the device, both acts as a regular SIM, eSIM can also be used for many different purposes.

The difference between eSIM and SIM is usually (SIM plastic) currently.

Speaking of the differences between the two types, regular SIM (SIM plastic, physical SIM) and eSIM (electronic SIM), need to talk about:

Advantages of eSIM

Thus, it can be seen that, compared to the current physical SIM, eSIM has many advantages:

1. Extremely compact size (only about 3-5mm), only a small part of Nano SIM (smallest physical sim today, size 12.30 mm x 8.80 mm).
2. Non-removable - eliminates the design of open, dust-proof, water-proof products.
3. In addition to phones, eSIM can be used with both smartwatch, even smaller devices later on.
4. When officially operating worldwide, we can comfortably move between countries together without purchasing, installing and activating domestic SIMs.
5. Thanks to M2M, eSIM can transmit, receive data, extremely good remote waves.
6. Ignore the difference in SIM size (because currently, each model uses SIM type, different SIM size).
7. In terms of macro, eSIM helps manufacturers save the cost of making their own SIMs, reducing infrastructure, reducing the use of labor, bringing more value.

eSIM is available for both smartphones and Smartwatch.

Which phones can use eSIM?

Currently, eSIM can be used officially on devices of iOS operating system, including:

1. Apple Watch Series 3.
2. Apple Watch Pixel 2 and Pixel 2 XL.
3. iPhone XS and XS Max.
4. Samsung Gear S2 and S3 Smartwatch.

Can Vietnam use eSIM?

Currently, eSIM is not officially recognized and used publicly all over the world. By depending on the needs and views of religion as well as the habits of the people of each region and country, there will be different standards. For example, in China, iPhones released in Hong Kong and Macau do not have eSIM but instead are 2 physical SIMs.

According to statistics, only 11 countries in the world can use electronic SIM, that is:

1. USA (with T-Mobile, AT&T, Verizon).
2. Brother.
3. Canada.
4. Virtue.
5. Hungary.
6. Czech.
7. Croatia.
8. Shirt.
9. Spain.
10. India.
11. China (network operator China Mobile and China Telecom).

Mobile SIM size of old and present.

In Vietnam, there is only information about Viettel network "trying" to deploy and put eSIM into operation. That is, until then, Vietnamese eSIM users will not be able to activate and use the services of this electronic SIM.

Ever used eSIM?

With its outstanding advantages, Esim is considered a device of the future with great utilities. Currently, GSMA - the global representative unit of mobile operators, said it wants and will make eSIM a new standard for future mobility devices. Phone makers, major mobile network providers around the world also said that they will participate in this trend of eSIM electronic SIM with all their capabilities.