Introduced for the first time in 2017, eSIM (Embedded SIM) has since gained widespread popularity among users due to its excellent advantages such as compact design, integration directly into the device, reduced dust in the SIM slot, and easy network switching. So, what is eSIM? How to install and use eSIM effectively? Follow this article to find out!
1. Understanding eSIM and Why It's Preferred
eSIM is an electronic SIM card with a 'super compact' size (only about 5mm long and approximately 0.67mm thick) and functions similarly to a traditional SIM card. However, the key difference with eSIM compared to previous removable SIM cards is that this advanced SIM type is directly soldered onto the device's circuit board. This saves maximum space in the SIM slot and minimizes the ingress of dust into the phone's hardware.
Currently, three major telecom operators in Vietnam offering eSIM technology are Viettel, Mobifone, and Vinaphone. Therefore, acquiring an eSIM is easily achievable if your device supports it.

eSIM is a type of SIM directly integrated into the phone's hardware, controlled through specialized software installed on mobile devices.
2. iPhone Models Compatible with eSIM
Adapting to the evolving era, Apple swiftly embraced the eSIM trend and introduced products supporting electronic SIMs (updated as of January 10, 2022). Specifically:
- 2018: Introduced iPhone Xs, iPhone Xs Max, and iPhone Xr.
- 2019: Unveiled iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max.
- 2020: Released iPhone SE, iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, and iPhone 12 mini.
- 2021: Launched iPhone 13, iPhone 13 mini, iPhone 13 Pro, and iPhone 13 Pro Max.
3. Quick Guide: How to Set Up eSIM on iPhone?
Here, Mytour provides a detailed tutorial on how to easily install eSIM on your iPhone at home:
- Step 1: Open Settings on your iPhone.
- Step 2: Navigate to Cellular and select Add Cellular Plan.
- Step 3: Scan the QR code provided by your network using your iPhone's camera.
- Step 4: Enter the network's confirmation code (if any), and you're done.

The steps above guide you in setting up eSim as the primary SIM on your iPhone.
How to Set Up eSIM on Samsung Phones (Android)
Currently, only a few Android phones integrate eSIM, such as Samsung Galaxy S20, Samsung Galaxy Note 20, Samsung Galaxy Fold, Samsung Galaxy Z Flip, Nexus 6P, Moto G6, LG G7 ThinQ...
If you own one of these devices and are unsure how to quickly and easily configure eSIM, follow these 4 steps:
- Step 1: Go to Settings on your Samsung phone.
- Step 2: Tap on the Connectivity section.
- Step 3: Choose SIM Management and click on Add Mobile Plan.
- Step 4: Select the QR code scanning method and shift the camera to the code area to complete the process.

Guide on how to set up eSIM on Android phones.
4. Comprehensive Guide on Using eSIM on iPhone
In addition to understanding how to install eSim, users also need to learn how to use eSIM correctly to maximize the features of the electronic SIM. Below are some basic operations:
- How to Rename eSIM on iPhone:
+ Step 1: Open Settings with the gear icon on your iPhone.
+ Step 2: Navigate to Cellular, select the newly added eSIM icon.
+ Step 3: Click on the default name of the eSIM. Then, enter the desired name for the eSIM and save it.
- How to Remove eSIM on iPhone:
+ Step 1: Go to Settings, tap on Cellular.
+ Step 2: Choose the eSIM number you want to remove.
+ Step 3: Press the Remove Mobile Plan command to delete the eSIM.
- How to Switch SIMs for 3G/4G Data Usage on iPhone:
In a dual-SIM device, Apple assigns distinct tasks to the primary and secondary SIMs. Specifically, the primary SIM is used for making calls, accessing the network, iMessage, and FaceTime. Meanwhile, the secondary SIM is only utilized for regular calls and text messages. Therefore, if you want to switch the SIM for 3G/4G data access, you need to adjust the settings for the primary and secondary SIMs.
Follow these steps:
+ Step 1: Go to Settings, select Cellular.
+ Step 2: Tap on the phone number you want to modify.
+ Step 3: Continue selecting the label list for tagging. You have various options such as Primary SIM, Secondary SIM, Personal SIM, Travel SIM. Then, tag the Primary SIM for the phone number you want to use for mobile data.
Can you use a physical SIM and eSIM simultaneously on iPhone?
The answer is YES. Starting from the iPhone X and later models, you can use both a physical SIM and eSIM concurrently by setting up one SIM for calls and texts (Secondary SIM) and another SIM for mobile data access (Primary SIM).

You can use 2 SIMs simultaneously on iPhone by configuring the Primary and Secondary SIMs.
Based on the information provided, we hope you now understand how to quickly and easily set up eSIM. If you need to purchase a phone equipped with eSIM for upcoming international journeys, contact Mytour HERE or call the Hotline 1900 2628 for timely advice and assistance in getting a cutting-edge, reasonably priced phone.