What is eSIM

eSIMs, short for embedded SIMs, are digital versions of traditional and physical SIM cards. Fundamentally, both types connect the user to data services and a phone number.

While physical SIM cards are small cards placed in your devices, eSIMs are digitally integrated into your devices. eSIMs enable you to connect to your wireless carrier’s network and utilize your plan without requiring a physical SIM card.

eSIMs are programmable remotely via software, meaning you won’t have to purchase a new SIM card if you want to swap phones or wireless carriers. In most cases, activating an eSIM can be accomplished by scanning a QR code provided by your chosen mobile provider directly onto your devices.

eSIMs are incorporated into various devices, including smartphones, tablets, smartwatches, laptops, drones, and even automobiles. Essentially, they are revolutionary in terms of conserving space and enhancing connectivity.

Pros and cons of eSIM

While eSIM remains a relatively novel concept for numerous users, it presents many advantages. Embracing this technology can be advantageous for you. Continue reading as we delve into an extensive discussion to explore the pros and cons of adopting eSIM technology.

Pros of eSIM

Enhanced security and privacy

eSIMs provide enhanced security features when compared to traditional physical SIM cards. Unlike physical SIM cards that can be easily removed and inserted into various devices, the eSIM is a chip integrated into your device, making it impossible to remove. This eliminates concerns about your SIM card being unlawfully taken for bad purposes.

eSIM takes up less space

eSIM provides a substantial advantage for both manufacturers and users. Because it eliminates the need for a dedicated slot, manufacturers can utilize the saved space to incorporate additional functionalities and enhance design choices. This translates to users enjoying supplementary features such as improved battery capacity, swifter CPUs, or enhanced protection against water and dust, all made possible by reducing entry points.

Easily switching carriers

eSIMs simplify the carrier-switching process, enabling users to change service providers without swapping physical SIM cards or maintaining multiple smartphones. They offer enhanced convenience and adaptability.

Environment-Friendly

Because eSIMs are reprogrammable, they do not need to be discarded when users change carriers or update their mobile plans. This reduces plastic and metal waste when operators make and distribute physical SIM cards.

Cons of eSIM

Can’t switch to another device

Switching from the successfully installed eSIM on the previous device to another is impossible. If you have a physical SIM card, you can easily remove it and insert it into another device, but this option isn't available with an eSIM.

What is travel eSIM? What is it for?

A travel eSIM is a specific type of eSIM that allows access to mobile data and call and text services without needing a contractual agreement or passport scanning.

Using an eSIM eliminates the need to insert physical SIM cards during travel. Travelers are not required to own a device that supports two physical SIM cards or manually switch cards. Additionally, users can bypass the inconvenience of carrying multiple smartphones, each dedicated to a different physical SIM card when traveling. This adds convenience and reduces travel-related stress.

These eSIMs are designed with short-term travelers or individuals who travel for work, such as seafarers or flight crew, in mind. So, a travel eSIM is an excellent choice if you:

  • Plan to travel within a month.

  • Want to stay connected with friends and family while on the go.

Travel eSIM can be used in one country or linked with multiple carriers in various countries. Users can make calls and use the internet according to the eSIM plan they subscribe to.

Types of travel eSIMs

Divided by packages

eSIMs can only use the Internet (data-only eSIMs)

While abroad, you can use a data-only eSIM as your secondary line and keep your primary line for your home.

eSIMs can use the internet and make voice calls

It comes with a phone number that can be of great help when reserving hotels, hailing taxis, or in any situation requiring a phone number for staying in touch with a local speaker of that country.

Divided by carrier

Local travel eSIM

Local travel eSIMs are provided by the operator of the host country you are visiting. For example, in Japan, there's Docomo; in the United States, there's T-Mobile or AT&T. You can usually get it at the destination airport.

Roaming eSIM/ International eSIM

Roaming refers to using a network provided by a carrier other than your own. It occurs when you operate your phone beyond your carrier's coverage area.

In terms of functionality, international eSIMs differ significantly from local travel eSIMs. An international eSIM operates on networks distributed across various regions, enabling users to connect to these networks without incurring hefty roaming fees for calls.

This is primarily feasible due to carrier agreements with telecom providers worldwide, granting users access to telecommunication networks. So, if you're traveling across multiple countries or regions, travel frequently, or have jobs that require constant mobility, a roaming eSIM is the preferred option. At the same time, an international eSIM provides a more logical choice.

Roaming eSIMs provides you with options for specific plans:

  • Single-country eSIMs

  • Regional eSIMs cover multiple countries in one region, like Europe or Southeast Asia.

  • Global eSIMs provide coverage across multiple countries, regions, and continents.

Divided by used time

Whether it's a prepaid or postpaid plan, the eSIM functions similarly. The features you can access depend on your specific plan and how you pay for those features.

Pay-as-you-go eSIM

Using a pay-as-you-go eSIM, you can make calls, send texts, and use data until your plan runs out. To continue using the services, you can add more credit as needed. This is a suitable choice if you wish to control your expenses and use your phone only occasionally.

Prepaid eSIM

A prepaid travel eSIM enables you to prepay for phone services. In this arrangement, you buy a specific quantity of data, minutes, and texts, and you can only access the services you've already funded until those resources are exhausted. This can be suitable for individuals who use their phones sparingly or travelers requiring a temporary phone plan.