Popular Questions

You will get your eSIM plan via email within 5-15 minutes.
If you didn’t receive your eSIM plan within 15 minutes, please check your spam folder or promotion folder first, then contact us via hello@esimworld.net.

Yes. Please make sure that [Data Roaming] for the secondary line (the eSIM plan you’ve added) is turned on to use data with eSIM. To turn it on, go to [Settings] – [Cellular] and turn [Data Roaming] on as the instructions below.   Apple
  1. Go to [Settings] – [Cellular]
  2. Tap [Secondary] (the eSIM plan you’ve added)
  3. Make sure [Data Roaming] is turned ON
If you correctly set the eSIM plan you just added for using cellular data and disable the automatic switching of lines as the instructions below, no additional fee will be charged.  
  1. Go to [Settings] – [Cellular]
  2. Tap [Cellular Data]
  3. Make sure [Allow Cellular Data Switching] is turned OFF
You can also check with your domestic carrier and subscribe to any ”Blocked charged international roaming” services.

If you can’t access data after you activate the eSIM plan successfully, please make sure that [Data Roaming] is turned on and try restarting your phone.
If you installed an eSIM plan that has access to APN manual setting, please follow the instructions provided here to enter the APN information in your device manually.
You must contact us via hello@esimworld.net for the APN information.


  1. Go to [Settings] – [Cellular]
  2. In Data Plans, select your eSIM profile
  3. When the profile is on, go to [Mobile Data Network]
  4. Then, type the APN information in the all 4 APN fields: Mobile Data, LTE setup, MMS and Personal Hotspot
  1. Go to [Settings] – [Connections]
  2. Tap [Mobile network] – [Access Point Names (or Advanced, then APN)]
  3. Please click “Adding the New APN” and type the APN information and save
  4. Now select the APN you just created. Please restart the device
  1. Go to [Settings] – [Network & Internet] – [Mobile network]
  2. In Mobile network, scroll to the bottom and select [Access Point Names]
  3. Choose the APN info if it’s listed. If not available, tap the menu button and tap [New APN]
  4. Type the APN information in the APN field
  5. Now select the APN you just created. Please restart the device

Please contact us via hello@esimworld.net for the further assistance.

You can’t use an eSIM with a locked phone.

To check whether your device is locked, please check your device setting as instructions below or contact your carrier. If your phone is locked, you should contact your domestic carrier to unlock your phone before you use the eSIM plan.


  1. Go to [Settings] – [General] – [About] and swipe down
  2. If you can find “Network Provider Lock – No SIM restrictions” and “Digital SIM – IMEI (number will appear)” your phone is compatible with eSIM
  3. If you find “SIM restrictions”, your phone doesn’t support eSIM
Samsung & Google
  1. Go to [Settings] – [Connections] – [Mobile networks]
  2. Select [Networks operators]
  3. If available networks appear, the phone is probably unlocked
  4. If only one result comes back from the network search, or if the Search Networks option is unavailable in the Networks menu, then the phone is most likely locked to the carrier

In most of the case, once an eSIM plan is installed, it can’t be reinstalled or reissued.
If you are facing any problem, please don’t delete your eSIM plan – instead, contact us via hello@esimworld.net first.

eSIM Korea provides data-only plans. Therefore, a local phone number is not included in the plans. As a result, making calls and sending SMS is unavailable.

However, you can only make calls using messaging apps like WhatsApp or Skype using your data plan.

If you need help or have further questions, please don’t hesitate to contact us via hello@esimworld.net.
Before Order

The following devices are compatible with eSIM Korea data plans :

  • iPhone 15, 15 Plus, 15 Pro, 15 Pro Max
  • iPhone 14, 14 Plus, 14 Pro, 14 Pro Max
  • iPhone SE3 (2022)
  • iPhone 13, 13 Pro, 13 Pro Max, 13 Mini
  • iPhone 12, 12 Pro, 12 Pro Max, 12 Mini
  • iPhone 11, 11 Pro, 11 Pro Max
  • iPhone SE2 (2020)
  • iPhone XR, iPhone XS, XS Max
    (Recommended iOS version: iOS 13.3 or later)
  • Samsung Galaxy S23 5G, S23 Ultra 5G, S23+ 5G
  • Samsung Galaxy S22 5G, S22 Ultra 5G, S22+ 5G
  • Samsung Galaxy S21 5G, S21 Ultra 5G, S21+ 5G
  • Samsung Galaxy S20, S20+, S20 Ultra 5G
  • Samsung Galaxy Note 20, Note 20+, Note 20 Ultra
  • Samsung Galaxy Note 20 FE, Note 20 FE 5G, Note 20 Ultra, Note 20 Ultra 5G
  • Samsung Galaxy Fold, Z Fold 2, Z Fold 3, Z Fold 4, Z Fold 5
  • Samsung Galaxy Z Flip, Z Flip 3 5G, Z Flip 4, Z Flip 5
  • Google Pixel 7, 7a, 7Pro
  • Google Pixel 6, 6a, 6Pro
  • Google Pixel 5, 5a
  • Google Pixel 4, 4a, 4XL
  • Google Pixel 3, 3XL*
  • Google Pixel 3a, 3aXL*

✱ If your device is not listed above, please contact eSIM Korea Team.

✱ Please check the following devices, which DO NOT have eSIM capability.



· iPhone purchased from mainland China
· iPhone purchased from Hong Kong and Macao (except for iPhone 13 mini, iPhone 12 mini, iPhone SE 2020, and iPhone XS)


· All Samsung S20 FE/S21 FE models
· Samsung S20/S21 and Galaxy Z Flip 5G from USA
· Samsung Note 20 Ultra and Samsung Galaxy Z Fold 2 from USA and Hong Kong


· Pixel 3 models manufactured from Australia, Taiwan, and Japan
· Pixel 3 models bought from US or Canadian carriers other than Sprint and Google Fi
· Pixel 3a models bought in South East Asia and with Verizon service

If you have following devices, you can’t use eSIM with your device.

iPhone models don’t support eSIM
  • iPhone that is carrier-locked
  • iPhone Purchased from Mainland China, Hong Kong, Macao **
    (** Hong Kong and Macao versions have exceptions that support eSIM such as iPhone XS, iPhone SE (2nd and 3rd generation only) iPhone 12 mini and iPhone 13 mini.)
  • iPhone 6
  • iPhone 7 series
  • iPhone 8 series
  • iPhone X
  • iPhone SE 1 Generation

Samsung models don’t support eSIM
  • Samsung device that is carrier-locked
  • All Samsung S20 FE/S21 FE models (People mostly get confused, since other S20 & S21 models can be compatible with eSIM.)
  • USA versions of Samsung S20/S21 and Galaxy Z Flip 5G
  • USA and Hong Kong versions of the Samsung Note 20 Ultra and Samsung Galaxy Z Fold 2
  • South Korea versions of most Samsung devices (Only Samsung Galaxy Z Flip 4 and Samsung Galaxy Z Fold 4 purchased in South Korea are eSIM compatible.)
  • Canada and the USA version of Samsung S21 series devices (except for FE models) may have eSIM capability as long as the One UI 4 update is installed. 7)
  • Samsung Galaxy Note 9, Note 10, Note 10+ or Note Lite
  • Samsung Galaxy S10, S10e, S10 Lite or S10+
  • Samsung S9 or S9+
  • Samsung S8 or S8+
  • Samsung S7
  • Samsung A series (A20, A21, A22, A23, A30, A52)
Others devices don’t support eSIM
  • Any other device that is carrier-locked
  • Huawei P30 series
  • Huawei Mate series (10, 20 Pro etc)
  • Xiaomi Redimi Note series (9pro, 9t etc)
  • Xiaomi Devices (Poco F3, 12T etc)
  • Oppo Devices
  • Surface Duo Devices
  • One Plus Node
  • Sony Xperia
  • Asus Rog

If your device supports eSIM, you will need to find its Secondary “IMEI” number for eSIM by following the steps below.


1. Go to [Settings]

2. Tap [General] – [About]

3. Scroll down to view the device’s Serial Number and IMEI for your primary and secondary sim cards

4. If you have 2 IMEI numbers, your device supports eSIM


1. Go to [Settings]

2. If you see a search bar in [Settings], type in “IMEI”, and the option “IMEI information” (or similar) should show up (otherwise, you will need to go to [About phone] – [Status])

3. Tap [IMEI information] If the “IMEI (eSIM)” is displayed, it means that your device supports eSIM

Other Android

1. Dial *#06# and press call

2. In case your device is eSIM-enabled, you should be able to view your device’s eSIM unique identification number (EID)

Yes, you can either purchase our eSIM before departure or after arrival, since eSIM validity starts as soon as you scan and install the QR code to your device. If you don’t scan and install the QR code, the validity won’t start. If you plan to purchase eSIM prior to your trip, please consider your trip schedule before installing it.

Yes. You are able to use hotspots/tethering and share data with eSIM. Please consider that if you share data with a laptop, you can experience slower speed than you expected. Since the eSIM is designed for mobile usage, you can share data seamlessly with other mobile devices.

All of our transactions will be processed with USD (United States Dollar).

Yes, eSIM Korea Plans work everywhere in the Korea.  We select and offer the best data plans which provide the best nationwide coverage.

Yes, City eSIM Plans work not only in a particular city but also everywhere in the Korea.

City eSIM Plans help you to be connected to the best network in selected city.
If you stay longer in a particular city, choosing City eSIM Plans would be helpful.

To activate eSIM on your Apple Watch or iPad, you must purchase eSIM Korea Fixed Plan. Additionally, you must have a carrier-unlocked Apple device that is compatible with eSIM and has WiFi + Cellular capabilities. Here is a list of smart devices that are compatible with eSIM:

eSIM Compatible Apple Watch
  • Apple Watch Series 3 GPS + Cellular
  • Apple Watch Series 4 GPS + Cellular
  • Apple Watch Series 5 GPS + Cellular
  • Apple Watch Series 6 GPS + Cellular
  • Apple Watch Series 7 GPS + Cellular
  • Apple Watch Series 8 GPS + Cellular
  • Apple Watch Ultra
  • Apple Watch Series SE, SE2 GPS + Cellular
eSIM Compatible iPad
  • iPad Pro 11-inch (1st Gen, 2nd Gen, 3rd Gen)
  • iPad Pro 12.9-inch (3rd Gen, 4th Gen, 5th Gen)
  • iPad Air (3rd Gen, 4th Gen, 5th Gen)
  • iPad (7th Gen, 8th Gen, 9th Gen)
  • iPad mini (5th Gen, 6th Gen)
After Order