All about eSIM: What is it? How does it work?
If you’ve ever been on an international trip, you probably used your carrier’s roaming service or bought a SIM card to access the internet. However, savvy travelers are now turning to eSIM—an innovative virtual SIM technology that makes it easier to stay connected anywhere in the world. In this article, we’ll uncover what eSIM is, explain how it works, and provide everything you need to know to determine if it’s the ideal option for you. Shall we?
If you prefer, jump straight to the topic of interest:
What is eSIM?
Have you ever used an earring during a flight to pop open the SIM card tray on your phone and insert a SIM card to access the internet abroad? Well, I bring you excellent news: that’s a thing of the past!
The eSIM, or “embedded SIM,” is an evolution of the traditional SIM card. Unlike a physical SIM card, the eSIM is a digital miniature integrated into the device’s circuit board. This innovation offers instant connectivity and eliminates the need to physically swap SIM cards to change connection sources.
The video below, from our partner Airalo, provides a simplified explanation. Check it out!
How does eSIM work?
The eSIM, or virtual SIM, integrated into your device contains all the technology needed to establish a remote connection with mobile operators near your physical location. After purchasing a data package from an eSIM marketplace, all you need is a good internet connection via Wi-Fi to install it. Once installed, you can activate it and have access to the internet using this technology in other locations.
eSIM vs. Physical SIM
Want to know the difference between a physical SIM and an eSIM? See the comparative table below to discover the advantages and disadvantages of each.
| Physical SIM | eSIM | |
|---|---|---|
| Definition | Removable card containing a chip | Integrated chip within the device |
| Installation | Requires physical insertion into the device | Installed via Wi-Fi connection, activated remotely through software |
| Flexibility | Changing carriers means getting a new SIM card | Carrier switching easily configurable via software |
| Multiline | Generally limited to one line per card unless dual SIM supported | Supports multiple profiles, allowing several lines on the same device |
| Durability | Can be physically damaged | More durable as it is internal |
| Security | The card can be stolen or lost | More secure due to limited physical access |
| Compatibility | Compatible with most current devices | Requires compatible devices |
| Sustainability | Involves production and disposal of plastic | Less environmental impact |
Importance of having internet access when traveling abroad
Now that we understand the technology behind eSIM, let’s discuss why having internet access during international travel can be a game changer.
In my opinion, the primary advantage is security. Having internet available allows us to consult maps so we don’t get lost while exploring, use online translators, request rides through apps, or make emergency calls. Additionally, it offers other conveniences like staying in touch with friends and family in real time, finding the perfect restaurant or a must-see attraction with just a few taps on your phone.
If you, like me, are a digital nomad, this becomes an indispensable tool. In fact, I’m writing this article directly from Texas (USA), using my eSIM Airalo connection via hotspot while traveling by car.
What you need to know before buying an eSIM
Now that you know what eSIM is and how it works, it’s crucial to be aware that:
1) Your device must be compatible with eSIM technology
Not all mobile devices have this technology. Generally, devices manufactured from 2018 onwards are compatible; however, be sure to check with your eSIM retailer to confirm if your device has this feature.
In the case of Airalo, you can check the full list of compatible devices here.
2) The device must not have contract restrictions with a mobile carrier
Ensure your device is not tied to restrictive contracts with any mobile carrier, as this could limit eSIM usage.
3) The device should not have restrictions related to the country where it was purchased
Countries like China, South Korea, Taiwan, and Turkey, for example, impose restrictions on some devices.
For Airalo, you can check the complete list of restrictions here.
4) The device should not have undergone unlocking or manual reconfiguration processes
Devices that have been through jailbreaking or rooting processes may encounter compatibility issues with eSIMs.
5) It’s worth considering acquiring the Airalo eSIM
Airalo is our recommended eSIM, offering local, regional, and global eSIM options for over 200 countries and regions worldwide, all at competitive prices. Plus, you can use one of our discount coupons for additional savings.
What you need to know before installing your eSIM
Convinced this is the ideal solution for you? Here are some useful tips:
1) You will need a stable Wi-Fi connection for installation
A stable Wi-Fi connection is required to install your eSIM as this process cannot be interrupted.
2) Activate your eSIM upon arrival at your destination
After installing the eSIM on your device, you can choose to activate it only once you arrive at your travel destination. This helps ensure that your purchased package isn’t used unnecessarily. However, be aware! Before making any decisions, check whether the validity period of your data package begins when the eSIM connects to a mobile network within its coverage area or if it starts immediately after installation.
Our recommendation: Airalo
Airalo is an online store that offers eSIM solutions for travelers, allowing the purchase, installation, and activation of mobile data packages directly from the device. Without the need to swap physical SIM cards, Airalo simplifies global connectivity in a straightforward and accessible manner.
Advantages of Airalo eSIM
Global Connectivity:
With packages available for pretty much any destination, Airalo eliminates the need to buy a local SIM card upon arriving in a new country.
Cost-Effectiveness:
Airalo’s plans are often more economical than the roaming packages offered by traditional carriers. Users can choose from a variety of packages that fit their needs and budget.
How does Airalo eSIM work?
Step 1: First, create an account on the Airalo website or app—take advantage of this link that automatically gives a 15% discount for new users.
Step 2: Select the desired eSIM data plan and make your purchase.
Step 3: You will be directed to a screen to proceed with the installation. If you purchased the eSIM on your computer, you can scan the QR code with your smartphone, and the installation process will begin simply and intuitively. If you make the purchase directly through the Airalo app, you’ll notice a button to start the installation. Remember, having a good Wi-Fi connection at this stage is crucial, and the installation process should not be interrupted.
Step 4: Once the installation is complete, you will be directed to your device’s data settings screen, where you can activate and deactivate the eSIM as desired.
Want to check how much of your data package has been used? You can view it in the app at any time.
Airalo Coupon
Our partnership with Airalo continues to grow, and we’ve managed to secure special discount coupons for you! New customers receive a 15% discount with this link, while returning customers can enjoy 10% off with this other link.
Please note that users can only use one of the above discounts, and only once.
FAQ
The eSIM, or “embedded SIM,” is a digital chip integrated into the phone’s circuit board that, when activated, allows instant connection to a nearby mobile network provider.
eSIM stands for “embedded Subscriber Identity Module”.
An eSIM is used by activating it through the mobile device’s settings, scanning a QR code provided by the carrier, or manually installing the network profile.
We recommend Airalo’s eSIM for its convenience, wide coverage, and competitive pricing.
An eSIM allows you to connect to local networks abroad by downloading a data plan from a provider onto your device via a QR code or app, facilitating access to data and calls without the need for a physical SIM card.
Yes, but only with the carrier your iPhone is locked to.
In my opinion, if your device is compatible with eSIM, that’s the way to go. It’s easier to install, and you won’t need to remove your current SIM card to use it.
As you can see, the information shared in this article highlights that eSIM is a very practical and valuable tool for anyone who wants to stay connected while traveling the world. So, are you ready for this experience?
🦊 Sincere fox informs:
* This article was written with the support of Airalo, our favorite eSIM store! Rest assured, our recommendations are always genuine and based on our experience.
** This post contains affiliate links, which means that by purchasing a product/service after clicking our links, LMTM earns a commission that helps us keep providing free content for all traveling foxes around the world ✌🏽🦊.
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