How to Use Dual SIM on iPhone Xs and Xs Max

One of the main highlights of the of 2021 iPhones is the support for two SIM cards. This long-awaited feature means a lot to users who want more flexibility when choosing or switching operators. If the operators did not offer resistance, Apple would have introduced the digital SIM card to the iPhone much earlier. In any case, better late than never! Let's see how to use the dual sim card on iPhone XS or Xs Max.

As mentioned above, the dual-SIM card offers several advantages. For example, you can keep one number for your company and another for personal calls. Even if you do not have a business, you want the privilege of two telephone numbers.

If you travel abroad, you can easily add a local data plan to save a lot of money. Better yet, it gives you the freedom to receive separate voice and data packs for a more streamlined experience.

What is eSIM?

Before I take a dive in the process of configuring Dual SIM on iPhones of 2021, I want to be brief about eSIM.

"E" means an integrated SIM card. Unlike the physical SIM card, eSIM is integrated in the device. It is a small chip with which you can verify your identity with an operator.

eSIM was already available on the latest iPad and Apple Watch. Now the technology giant has decided to also bring it to iPhones.

What you need to know

  • Once you enable eSIM, your iPhone can only use one mobile data network at a time.
  • Remember that if one of your numbers is busy, incoming calls on the other number are automatically sent to voicemail. This only happens if you have enabled it for your operator.
  • Apple will add dual SIM support for compatible iPhones later this year through the iOS 12 software update.
  • You can only use two different operators on your unlocked iPhone.
  • To date, Apple's eSIM is only supported in 10 countries including Austria, Canada, Croatia, the Czech Republic, Germany, Hungary, India, Spain, the United Kingdom and the United States.
  • outraged; operators must provide compatibility with the digital SIM card. At the moment only AT & T, T-Mobile and Verizon support it in the United States.
  • For China and Hong Kong, Apple will launch a special version of the iPhone Xs and Xs Max to allow users to insert two physical SIM cards.

How to use Dual SIM on iPhone XS and iPhone Xs Max

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How to configure Cellplan with eSIM on iPhone Xs or Xs Max

Entering an e-SIM card with a mobile plan is simple because it only has a few steps.

Step 1. Launch the Apply settings on your iOS device → Tap Cellular.

Step 2. Now tap Add a mobile plan

Step 3 Then use the camera of your iPhone scan the QR code offered by your courier.

In some cases you will receive a confirmation from the courier. Enter it to enable eSIM on your iPhone XS.


  • There is also an option to manually enter your plan data. To do this, press Enter details manually actually. Then follow the instructions to complete the process.
  • To activate your mobile subscription with an operator application, first download the application from the App Store. Then choose a cell scheme of your preferred application.

How to change eSIM on iPhone Xs and Xs Max

Although you can store multiple eSim on your iPhone, you can only use one at a time.

Step 1. Open Apply settings on your iPhone.

2nd step. Now press cellularMobile plans.

Step 3 Then tap the plan you want to use.

Step 4 Then press Lighting up This line.

Once your second plan comes into effect, you can label the plans according to your needs. For example, you can label a business plan and the other personal plan. Read more …

How to label your mobile plans

You can select the phone number you want to use to make or receive calls and messages. There is also an option to enter a number for mobile data and even assign a number to your contacts.

Step 1. Open Apply settings on your iPhone → Cellular.

2nd step. Now press the number which label you want to change.

Step 3 Then press Cellular flat label and choose a new label or Enter a custom label.

Another noteworthy thing is the ability to set your default number and dial the number that should only be used for mobile data.

Use Primary as the default rule: When you select this option, the voice, SMS, Data, iMessage, and FaceTime use Primary by default. Thesecondary is only used for speech and SMS.

Use the secondary rule as the default rule: As far as functionality is concerned, it is exactly the opposite of the first option. This means that if you choose this, the voice, SMS, Data, iMessage and FaceTime will use Secondary as standard. The primary is used for speech and SMS.

Use Secondary only for mobile data: It is explicit and you can only use the second line for mobile data.

Set your default number on the iPhone Xs or Xs MaxHow to manage cellular parameters

Apple gives you the freedom to manage the cellular parameters of each of your plans.

Step 1. Open settings → Tap Cellular.

2nd step. Now press telephone line.

Step 3 Crane every option and Personalize the option if necessary.

Manage mobile settings on iPhone Xs or Xs Max

How you can let your iPhone remember which number to use for calls

For an easier experience, the iPhone automatically uses the same number that you used last time. However, you have the option of setting the number that you want to use for a call with a contact.

Step 1. Go to the Contact and press it.

2nd step. Now press Preferred cell plan So select the number you want to use with this contact.

Have your iPhone remember the number that you can use for calls

Note: If one of your phone numbers is busy, an incoming call on your other number will only be sent to voicemail if you have activated it. One thing to note is that you have won't receive a notification for missed calls from your secondary number.

How to change your phone number for a call

You can change the phone numbers before you call.

Step 1. press the information button in the phone application.

Tap I icon in phone app on iPhone

Step 2. press the current phone number So select your other number.

Change phone number for a call on iPhone Xs or Xs Plus

Note: When using a keyboard, enter the phone number and press it. Then press the number you want to use.

Depending on your needs, you can choose the telephone line with iMessage.

How to choose the telephone line using iMessage and FaceTime

Step 1. Open settings → Tap posts → Tap iMessage & FaceTime Line.

2nd step. Now choose it phone number you want to use.

How to change your phone number before sending an SMS / MMS message

To ensure that you can send text messages with the desired phone number, you can edit it with iOS before pressing the submit button.

Step 1. launch Messaging application on your phone.

2nd step. Now press New button in the upper right corner of the screen.

Step 3 Then enter your contact name then press the current phone number.

Step 4 And last but not least, choose the number you want to use.

How to change the cell number

At the same time, one number will use the cellular data. However, you can adapt this option to your needs.

Step 1. Open Apply settings on your iPhone → Tap cellular Mobile data.

2nd step. Now you have to select the number you want to use mobile data.

Change the cellular data numberThat's all, boys!