Not using “eSIM” on iPhone is a loss! IIJmio’s eSIM service commentary

IIJmio Data Plan Zero eSIM iPhone

On the iPhone, “eSIM” is now available on XS/XS Max, XR and later models. Do you know about “eSIM”? eSIM is a built-in SIM in the main unit, and it is a function that can use another line apart from the physical SIM. One of the features is that you can have another line while having a main line.

If you make good use of it, the number of contract lines will increase, but the monthly mobile phone charge may be cheaper. It’s a waste to not use it, and I will explain “eSIM” that is expected as a new way to use smartphones and data communication in the future!

“ESIM” is a built-in SIM card that does not need to be inserted or removed

SIM cards, which are indispensable for using smartphones, have information such as carrier contract information and subscriber identification information recorded, and when changing models, you can replace this SIM card with a new terminal. , You can use a new smartphone without re-signing.

In addition, the SIM card has a telephone number starting with 070, 080, 090, “voice call SIM card” that can use both telephone and the Internet, and “data only SIM card that can be used only for Internet communication but cheaper than the voice call SIM card There are two types.

eSIM is a built-in SIM built into the smartphone itself, you do not need to replace the SIM card, you can start using by registering from the application or QR code provided by the carrier. The biggest feature is that you can immediately start using the SIM card without waiting for it to be shipped.

IIJmio Data Plan Zero eSIM iPhone

Although eSIM is attractive to use, it is not the only advantage. Since you can use two lines, a main line and a sub line, even if you do not want to cancel the main line you have been using for many years, you can use the advantageous plan of the sub line while leaving the main line ..

For iPhone XS/XS Max, iPhone XR and later models sold in Japan, both terminals handled by carriers and SIM-free terminals support eSIM. However, the iPhone handled by the carrier has a SIM lock, and you need to unlock the SIM to use a SIM card of another company. This also applies to eSIM, which cannot be used when SIM lock is set. Perform the SIM unlock procedure in advance.

Currently, carriers that support eSIM contracts in Japan are limited to some carriers such as IIJmio.

Add the amount of data you need, when you need it! IIJmio’s “Data Plan Zero” starts from JPY 150 per month

The Data Plan Zero eSIM service provided by IIJmio provides a SIM profile compatible with NTT DoCoMo’s LTE/3G network, so you can use the DoCoMo service area.

The usage charge is determined by combining the monthly basic charge of ¥150 and the amount of eSIM data, and you can use up to 10 GB per month. The amount of eSIM data is 300 yen up to 1GB each month, and 450 yen per 1GB thereafter. In the first month, the initial cost is 3,000 yen, and the SIM card issuance fee is 200 yen per SIM profile.

IIJmio Data Plan Zero eSIM iPhone

It does not support the transfer of additional data capacity, but the major feature is that the required capacity can be used immediately when needed. You can use the additional capacity for the months you use frequently, and you can keep the line for only the basic charge of 150 yen in the months you do not use.

Also, since “Data Plan Zero” is a data communication dedicated plan, it does not support voice calls and SMS using phone numbers, but you can use calling services and applications that use the Internet such as LINE. The main line is mainly used for voice calls, and the data line can be used to reduce mobile phone charges by using the sub line.

Compared to major carriers in terms of data communication charges, the major carriers have an additional data charge of 1,000 yen per GB, while IIJmio’s data plan zero is 450 yen per 1GB, which is more than half the price. Especially at the end of the month when the amount of data tends to be insufficient, or when the main line exceeds the amount of data and the speed is limited, you can easily add “giga” for a few hundred yen and survive the month. ..

IIJmio Data Plan Zero eSIM iPhone

Available for XS/XS Max, iPhone after XR, eSIM compatible iPad, etc.

Since it can be used with any terminal that supports eSIM, it can be used not only with iPhone but also with tablet terminals and laptop computers that support eSIM. The supported models at the time of writing this article are as follows.

smartphone Tablet terminal·
iPhone SE (2nd generation)
iPhone11 Pro
iPhone11 Pro Max
iPhone XS
iPhone XS Max
iPhone XR
Google Pixel4
Google Pixel4 XL
iPad (7th generation)
iPad mini (5th generation)
iPad Air (3rd generation)
11-inch iPad Pro (1st and 2nd generation)
12.9-inch iPad Pro (3rd and 4th generation)
Surface Pro LTE Advanced
Surface Pro X
ASUS TransBook Mini

Application and initial settings are completed online! Easy to use sub line

IIJmio’s Data Plan Zero is also characterized by the fact that all application and activation procedures can be completed online. When applying, you will need a credit card in the name of the person, an e-mail address that can be received, an eSIM compatible terminal to use, and a terminal (for application procedure) different from the terminal to use.

Easy steps 4 steps About 10 minutes

  • STEP1

    Apply from website

  • STEP2

    Receive an activation code

  • STEP3

    Read activation code and set

  • STEP4

    Start using

Access the application page on a device other than the one you will use to complete the application procedure. When the application is completed, the guide will be sent to the registered email address, and you will be able to log in to the member-only page and check the activation code (QR code) for connection settings.

Finally, you can use it immediately by reading the activation code on the terminal that uses eSIM and setting the connection. In the case of iPhone, you can set the connection with a simple operation from the setting application.

IIJmio Data Plan Zero eSIM iPhone

What happens if I change models when using the eSIM service?

In addition, the activation code at the time of initial setting cannot be changed to another terminal by linking it to one terminal, so if you change the model, you can continue to use it by reissuing the SIM card and setting it to a new terminal.

With the eSIM service, SIM card reissue is free, but a SIM profile issue fee of 200 yen will be charged. On the day of reissue application, SIM of old terminal and SIM of new terminal can be used in parallel, so there will be no time when data communication cannot be used.

New possibilities for smartphones with eSIM

As explained above, if your terminal is an eSIM compatible model, you can apply now and start using it immediately. If you add another line to the main line, you can use it when there is a daily data shortage, and if you have a contract with au network/Softbank network as the main line, you can use it in various situations such as backup at the time of line failure. It can be utilized.

Whether you know only the word eSIM or not at all, why not give it a try! For more information and to apply for IIJmio’s eSIM service “Data Plan Zero,” go to this special site!


*The product names and company names listed are the trade names, trademarks or registered trademarks of each company. In the text™, ® mark is not shown.
*All prices are tax-excluded.

Source: iPhone Mania

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