Use Dual SIM on iPhone (2024)

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iPhone User Guide Set up Dual SIM FAQs

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iPhone User Guide

Here are some of the many ways you can use Dual SIM:

  • Use one number for business and another number for personal calls.

  • Add a local data plan when you travel to another country or region.

  • Have separate voice and data plans.

Note: To use two different carriers, your iPhone must be unlocked. See the Apple Support article How to unlock your iPhone for use with a different carrier.

You can set up Dual SIM with the following:

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  • One physical SIM and one eSIM; available on iPhoneXR, iPhoneXS, iPhone11, iPhone12, iPhone13, iPhoneSE (2nd generation), and iPhone14 and later (purchased outside the U.S.)

  • Two eSIMs; iPhone13, iPhoneSE (3rd generation), and later

Note: eSIM isn’t available in certain countries or regions.

Set up Dual SIM

  1. Go to Settings Use Dual SIM on iPhone (1)> Cellular, then make sure you have at least two lines (below SIMs). To add a line, see Set up cellular service on iPhone.

  2. Turn on two lines—tap a line, then tap Turn On this Line.

    You can also change settings such as Cellular Plan Label, Wi-Fi Calling (if available from your carrier), Calls on Other Devices, or SIM PIN. The label appears in Phone, Messages, and Contacts.

  3. Choose the default line for cellular data—tap Cellular Data, then tap a line. To use either line depending on coverage and availability, turn on Allow Cellular Data Switching.

    You may incur roaming charges if Data Roaming is on and you’re outside the country or region covered by the carrier’s network.

  4. Choose the default line for voice calls—tap Default Voice Line, then tap a line.

When using Dual SIM, note the following:

  • Wi-Fi Calling must be turned on for a line to enable that line to receive calls while the other line is in use for a call. If you receive a call on one line while the other is in use for a call, and no Wi-Fi connection is available, iPhone uses the cellular data of the line that is in use for the call to receive the other line’s call. Charges may apply. The line that is in use for the call must be permitted for data use in your Cellular Data settings (either as the default line, or as the non-default line with Allow Cellular Data Switching turned on) to receive the other line’s call.

  • If you don’t turn on Wi-Fi Calling for a line, any incoming phone calls on that line (including calls from emergency services) go directly to voicemail (if available from your carrier) when the other line is in use; you won’t receive missed call notifications.

    If you set up conditional call forwarding (if available from your carrier) from one line to another when a line is busy or not in service, the calls don’t go to voicemail; contact your carrier for setup information.

  • If you make a phone call from another device, such as your Mac, by relaying it through your iPhone with Dual SIM, the call is made using your default voice line.

  • If you start an SMS/MMS Messages conversation using one line, you can’t switch the conversation to your other line; you need to delete the conversation and start a new conversation using the other line. Also, you may incur additional charges if you send SMS/MMS attachments on the line that’s not selected for cellular data.

  • Instant Hotspot and Personal Hotspot use the line selected for cellular data.

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Use Dual SIM on iPhone (2024)

FAQs

Can an iPhone use 2 SIM cards at the same time? ›

You can use Dual SIM by using a physical SIM and an eSIM. iPhone 13 models and later also support two active eSIMs. iPhone models without a physical SIM tray support two active eSIMs. Learn how to activate a cellular plan on an eSIM.

Read On ›
What are the disadvantages of Dual SIM iPhone? ›

Using dual SIMs has its downsides too:
  • Increased Battery Consumption: Running two active lines means your phone has to work harder, leading to quicker battery drain.
  • Management Complexity: Keeping track of contacts, messages, and calls for two numbers can be confusing and time-consuming.
Mar 13, 2024

Discover More Details ›
How to use Dual SIM when traveling? ›

If you have a phone with a dual-SIM tray (i.e. a SIM tray that supports two SIM cards), you can purchase a local tourist or prepaid SIM card at your destination upon arrival. Simply insert the second SIM card in the empty SIM slot, and activate it in your device settings.

Continue Reading ›
How to choose which SIM to use on an iPhone? ›

Set up Dual SIM
  1. Go to Settings > Cellular, then make sure you have at least two lines (below SIMs). ...
  2. Turn on two lines—tap a line, then tap Turn On this Line. ...
  3. Choose the default line for cellular data—tap Cellular Data, then tap a line. ...
  4. Choose the default line for voice calls—tap Default Voice Line, then tap a line.

See Details ›
How do I switch between SIM and eSIM on iPhone? ›

Go to "Settings" then "Connections" Choose "Mobile Network" Turn on your desired eSIM, or choose "Preferred SIM card" and select your desired eSIM.

Find Out More ›
How to switch primary SIM on iPhone? ›

How to switch back to your Primary SIM on an iPhone or iPad:
  1. Make sure your Primary SIM is turned on. Open “Settings” on your iPhone or iPad. Go to "Cellular" Under Cellular Plans, select your Primary SIM. ...
  2. Tell your device to use your Primary SIM for mobile data. Go to "Settings" then "Cellular" Choose "Cellular Data"

Tell Me More ›
Does Dual SIM drain more battery in iPhone? ›

Using both SIMs will draw more power from the battery since the phone would need to listen and occasionally communicate with the network even when not in active use. Two networks (or same network twice) would use twice the power.

Show Me More ›
Can I switch off one SIM in a Dual SIM iPhone? ›

Switching off a SIM card is straightforward. You just go to your phone settings, select SIM management (or SIM settings) and then you can select which of the two SIM cards you want to turn off. To turn it back on, go back to the settings and turn the SIM on.

Explore More ›
Why use Dual SIM on iPhone? ›

Here are a few of the many ways you can use Dual SIM: Use one number for business and another number for personal calls. Add a local data plan when you travel outside of the country or region. Have separate voice and data plans.

Continue Reading ›
How do you switch between SIMs on a dual-SIM phone? ›

How to switch between SIM cards on your Android
  1. Open Settings > Connections.
  2. Tap SIM Card Manager.
  3. Tap the SIM card you want to switch to.

Show Me More ›

How to use iPhone internationally without charges? ›

You can set your phone to airplane mode before arriving at your destination and keep it there while traveling abroad so that your phone doesn't use data. You'll just have to manually connect to Wi-Fi or Bluetooth if you'd like to use these options while abroad.

Read The Full Story ›
How to use dual-SIM in iPhone? ›

Set up Dual SIM

Go to Settings > Cellular, then make sure you have at least two lines (below SIMs). To add a line, see Set up cellular service on iPhone. Turn on two lines—tap a line, then tap Turn On this Line.

See Details ›
Which iphones can take 2 SIM cards? ›

You can set up Dual SIM with the following:
  • One physical SIM and one eSIM; available on iPhone XR, iPhone XS, iPhone 11, iPhone 12, iPhone 13, iPhone SE (2nd generation), and iPhone 14 and later (purchased outside the U.S.)
  • Two eSIMs; iPhone 13, iPhone SE (3rd generation), and later.

Get More Info Here ›
How does a Dual SIM phone work? ›

DSFA (Dual SIM Full Active) phones allow both SIM cards to connect, meaning you could get a call on both lines at the same time. If you get an incoming call on line two during a call on line one, you'll receive an alert and can handle both calls.

Continue Reading ›
What is an eSIM in an iPhone? ›

An eSIM is an industry-standard digital SIM that allows you to activate a mobile plan from your network provider without having to use a physical SIM. You can install eight or more eSIMs on an iPhone and use two phone numbers at the same time.

View More ›
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