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What is eSIM and How Does eSIM Work?

Nowadays, the matter of staying in touch with other people and having unlimited access to the internet is very important. We’re used to our current reality, and we can’t imagine our lives without communication anymore. However, when you go abroad, maintaining this can be pretty difficult and expensive. A lot of travelers wonder how to be connected all the time and not spend too much money on it. The internet abroad may be used for various purposes, such as entertainment purposes and for tasks like calling a taxi, setting a route, finding a restaurant, informing your family that everything is OK, and so on. eSIM (Embedded Subscriber Identity Module) could become the most efficient solution to this problem. ESIM card allows users to access mobile communication services and the Internet while traveling abroad without charging high roaming fees and work almost all over the world. In this article, we will discuss what ESIM via eSimPlus is. At the end, you’ll find out if you need to try digital sim cards and their main benefits. 

What is eSim

What is eSIM?

ESIM (Embedded Subscriber Identity Module) is a virtual SIM card. It is not supposed to have a physical carrier, and it does not need to be inserted into your phone. It is enough to buy and configure it in the appropriate menu on your smartphone. 

Digital SIMs are especially convenient for travelers, as they can help them to avoid spending a lot of money on roaming plans. Before getting an electronic sim card, you should also consider some important points:

  • The electronic sim technology appeared only a few years ago, and not all phones support it. Before purchasing an eSIM, be sure to check that your model has electronic SIM support.
  • Even if your phone supports eSIM, make sure that the special slot for eSIM on your phone is free! As a rule, if you use a physical SIM card for your home operator, then you will also have a free sim slot.
  • You can buy eSIM for travelers in advance, and activate it later (before traveling).

Benefits of eSIM

An electronic SIM for travelers may be required in a situation where your home operator does not provide the possibility of using the Internet abroad or its cost is high. Sometimes you just don’t want to spend your precious time abroad on buying a local SIM card. 

A digital SIM will salvage you if your smartphone does not support the installation of a second physical SIM card (but supports a second SIM) and it is important for you that your home SIM card remains in your phone during the trip.

What is more, there are also some other significant advantages:

  • The cost of the Internet when using eSIM for travelers is often much cheaper than when using the Internet from your home operator with special options connected.
  • Your main SIM card may remain on your phone, you will still be able to receive SMS messages, and even make and receive calls, if necessary, but you will be able to use eSIM for the Internet.

How Does eSIM work?

An eSIM is a digital SIM that allows you to activate a cellular plan from your carrier without having to use a physical SIM card. Here’s a basic overview of how it works:

  1. Activation: The eSIM is activated by your mobile network provider. This can be done by scanning a QR code, downloading a carrier app, or manually entering activation details.
  2. Authentication: Once activated, the eSIM is authenticated by the carrier’s network. This process is similar to how a physical SIM card works.
  3. Usage: After authentication, the eSIM can be used just like a regular SIM card. It can store multiple profiles and switch between them, which is useful for people who travel frequently or have multiple mobile numbers.
  4. Switching Networks: If you want to switch networks, you don’t need to physically replace the SIM card. Instead, you can simply download a new eSIM profile from your new carrier.

Getting eSIMs

There are several services and different useful sim card apps that allow you to purchase a SIM card online for travel. Let’s explore some of the most useful ones. 


One of the main advantages of eSimPlus is the ability to use multiple phone numbers on the same device. This is especially convenient for those who travel frequently and need different numbers for work and personal purposes. Thanks to eSimPlus, you can easily switch between different numbers without having to change physical SIM cards.

Another important advantage of eSimPlus is the ability to connect to a mobile network anywhere in the world without having to purchase a local SIM card. This significantly saves travelers time and money, as there is no need to look for local telecom operators and buy new SIM cards.

For entrepreneurs, eSimPlus also presents significant advantages. They can easily manage their phone numbers, set up call forwarding, set time limits on the use of numbers and much more. This allows them to be always available to communicate with their partners and customers, which is a key factor for success in modern business.


Drimsim is a universal SIM card and a free app for travel enthusiasts. Drimsim connects to the local network in 190+ countries. The SIM card is suitable for a phone, tablet or router. The mobile app helps you manage your expenses. There are no packages and subscription fees in Drimsim, billing and payment are carried out in minutes and megabytes.


The Yesim app is another innovative mobile communication solution that offers convenience and flexibility in using virtual SIM cards. One of the main advantages of Yesim is the ability to connect to a mobile network in different countries without having to change physical SIM cards.

After installing the application and signing in, you select the appropriate tariff plan according to the country in which you plan to use the Internet, and make the payment. Then you will receive a QR code with a sim profile by e-mail. Read more on How does the Internet work?

The Yesim application offers a wide range of tariffs and service packages, which allows users to choose the best option for their needs. They can easily manage their phone numbers, set up call forwarding, send SMS and more directly from the app.

However, like any other application, Yesim has some drawbacks. For example, not all mobile operators support virtual SIM cards, which may create certain restrictions in the use of the application. It is also worth considering that the application requires Internet access to work, which can be problematic in some places with poor network coverage.


Electronic SIM cards represent an innovative solution in the field of mobile communications, providing convenience, flexibility and freedom for users. They allow you to connect to a mobile network in different countries without having to change physical SIM cards. With a wide range of tariffs and the ability to manage phone numbers directly from the app, electronic SIM cards are becoming an indispensable tool for those who value comfort and connectivity anywhere in the world.

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