What is an eSIM, and how does it work?
The eSIM, or “virtual SIM card,” is the digital evolution of traditional physical SIM cards. It’s a built-in chip found in a wide range of next-generation compatible devices that allows you to activate mobile services remotely without needing a plastic card. Pretty cool, right?
This innovation has become a favorite among frequent travelers thanks to its convenience: buy, activate, and use — all in just a few minutes. In this article, we’ll explain how it works, how it differs from the physical SIM cards you’re used to, and why it’s the perfect travel companion to stay connected. Plus, we’ll share tips on how to activate it and where to get it. Keep reading!
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Imagine your traditional SIM card turning digital. That’s essentially what an eSIM is: a virtual chip that comes pre-installed in your phone, eliminating the need for a physical SIM card. Instead of inserting that tiny piece of plastic, the eSIM stores all your information directly within your device’s software. The result? Instant connectivity and hassle-free activation.
So, how does it work? Simple. Once you activate your eSIM, you get access to the internet, calls, and SMS just like with a traditional SIM card. But here’s the game-changer: you can store multiple mobile lines on a single device. This means you can easily switch between your personal number, an international data plan, or even a work line with just a few taps on your screen.
For travelers, it’s a dream come true. No more swapping out SIM cards every time you cross a border. With eSIM, you have the flexibility to stay connected as you move around the world without the hassle. It’s like having multiple SIM cards in your pocket—without taking up any space or risking losing them.
eSIM vs. SIM card: What’s the difference? 🥊
Let’s make it simple: the eSIM is the digital version of the traditional SIM card. Instead of inserting a plastic chip into your phone, the eSIM comes pre-installed in the device from the factory and is programmed through software. It’s more practical, cleaner, and way more modern.
On the other hand, physical SIM cards are removable and… a bit outdated. They require a plastic chip that you insert manually — and let’s be honest, there’s always a risk of losing or damaging it.
While both connect you to the mobile network, the key difference is that the eSIM doesn’t take up any physical space and allows you to manage multiple lines on a single device. But here’s the catch: eSIMs only work on compatible phones. If your device is a few years old, you’ll probably need an upgrade to take advantage of this technology.
And here’s a trend to watch: the latest iPhone models sold in the U.S., like the iPhone 14, iPhone 15, and iPhone 16, no longer include slots for physical SIM cards. That means Apple is betting on a 100% digital future… and it wouldn’t be surprising if other manufacturers follow suit soon. The takeaway? Physical SIM cards are on their way to becoming obsolete.

Why should you switch to eSIM?
Let’s be honest — no one wants the hassle of swapping out physical SIM cards every time they cross a border. That’s where the eSIM becomes your best ally. This technology isn’t just convenient; it simplifies your mobile connection and saves you a ton of headaches when traveling.
Forget about hunting for local carrier stores or paying outrageous roaming fees. With eSIM, everything is done remotely. You buy your plan online, receive an email with setup instructions, activate it in minutes, and voilà! You’ve got mobile data to start exploring your new destination.
But that’s not all… Check out all the benefits it offers!
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Benefits of eSIM
- 📲 Instant delivery and activation: Forget about waiting for a physical SIM to be shipped or standing in line at a store. With eSIM, you receive your plan instantly via email. All you need to do is scan a QR code, and within minutes, you’re connected.
- 🌎 Coverage across multiple countries: Planning to explore Europe, Asia, or Latin America? With a regional eSIM, you can move between different countries without swapping SIM cards. One plan gives you coverage across several destinations, so you don’t have to worry about losing connection in the middle of your trip.
- 📞 Compatibility with multiple lines: Do you have a personal number and a work number? With eSIM, you can have several mobile lines on one device and switch between them whenever you need. It’s perfect for business travelers or anyone who wants to keep their personal and professional lives separate.
- 🔐 Enhanced security: Physical SIM cards are easy to lose, damage, or even steal. eSIMs, on the other hand, are built into your device, so there’s no risk of losing them. Plus, they’re much harder to clone, adding an extra layer of security to your mobile connection.
- 💰 Significant savings: Still using roaming or renting portable Wi-Fi devices? It’s time to rethink your strategy. eSIMs are often more affordable and flexible. You can choose plans based on the length of your trip and avoid unexpected charges on your phone bill.
- 🌱 Eco-Friendly solution: Every time you skip using a physical SIM card, you’re helping the planet. eSIMs eliminate plastic waste and unnecessary packaging. It’s a much more sustainable solution for those of us looking to travel more responsibly.
Which phones use a virtual SIM card?

eSIM technology is quickly gaining ground, but for now, it’s primarily found in high-end devices. If you own a relatively recent smartphone, there’s a good chance it already has this feature built in.
Some of the most popular models that support virtual SIM cards include:
- iPhone — from the XR onward.
- Samsung Galaxy — starting with the S20.
- Google Pixel — beginning with the Pixel 3.
- Xiaomi — in its premium models.
And the list keeps growing as more manufacturers embrace this technology. Not sure if your phone is compatible? Check our list of supported devices to ensure your smartphone is ready to use eSIM.
Beyond smartphones: Other devices that support eSIM
The eSIM revolution isn’t limited to smartphones. This technology is also making its way into a wide range of other devices, including:
- Tablets: Devices like the iPad Pro and other Apple models allow you to connect to a data plan directly from the tablet, no SIM card required.
- Smartwatches: Own an Apple Watch or a Samsung Galaxy Watch? Many of these now come with eSIM, meaning you can leave your phone at home and still stay connected while working out or going for a walk.
- Laptops: Certain laptops, such as those from the Microsoft Surface line and select models from HP and Lenovo, also come with built-in eSIM functionality.
- IoT Devices: From security cameras to GPS tracking systems, eSIM is being integrated into a variety of connected devices.
The advantage here is clear: you can connect your devices to a data plan without relying on Wi-Fi. Imagine traveling with just your smartwatch or tablet and staying connected without the hassle of searching for public Wi-Fi networks.
How to get an eSIM?

If you’ve decided that eSIM is the best option for you (great choice!), your next question is likely: where can I get one?
The process for obtaining an eSIM depends on your provider and how you plan to use it. You have two main options:
- Get it from a local carrier for daily use in your country.
- Purchase an international eSIM through specialized providers, perfect for travel.
Here’s a breakdown of both options so you can choose the one that best suits your needs.
✅ How to get an eSIM from a local carrier?
If you need an eSIM for everyday use, the most practical solution is to get it directly from your mobile carrier. Most major carriers now offer eSIM as part of their services.
How to do it? It’s simple:
- In-store: Visit a customer service center and request to switch your physical SIM to an eSIM, or ask for a new line in eSIM format.
- Online or via the carrier’s app: Many carriers allow you to complete the process online without leaving home.
Some of the major carriers that offer eSIM services include Movistar, Orange, Vodafone, T-Mobile, AT&T, Telcel, and Claro.
💡 Tip: If your current provider doesn’t offer eSIM plans, it might be a good time to consider switching to one that does.
🌍 How to get an eSIM from an international provider?
If you’re a frequent traveler or love to explore the world without connectivity worries, your best bet is to go with an international eSIM provider.
These providers specialize in offering prepaid data plans for tourists, business travelers, and digital nomads. The great thing is that their plans work with local networks in over 190 countries, ensuring a stable and fast connection wherever you go.
In this case, you can purchase your eSIM from specialized online stores like Free Roaming. There, you’ll find flexible plans for over 190 destinations. Buy online, receive your eSIM instantly, and activate it in minutes.
Staying connected while traveling is easier than ever!
Do you know what’s better than landing in a new destination? Landing already connected! With the Free Roaming eSIM, you can forget about roaming charges and physical SIM cards. Bonus? Use the code GETESIM5 and get a 5% discount.
How to activate an eSIM?
So, you’ve purchased your eSIM? Great! Now comes the easy part: activating it on your device. Don’t worry — the process is super quick, and you don’t need to be a tech expert to get it done.
Once you’ve bought your eSIM, your provider will send you an email with all the information you need to install and activate it on your phone, whether it’s an iPhone or an Android device.
The most common activation method is by scanning a QR code that you’ll receive in your email. However, there are other ways to activate it, like setting it up manually or directly through the provider’s app.
Here’s a step-by-step guide to help you activate your eSIM on both iOS and Android devices 👇
🍏 Steps to activate your eSIM on iOS (iPhone)
If you’re using an iPhone, activating your eSIM is a breeze:
- 1️⃣ Go to Settings.
- 2️⃣ Tap on Cellular.
- 3️⃣ Select Add eSIM.
- 4️⃣ Choose Use QR Code.
- 5️⃣ Scan the QR code sent by your provider.
- 6️⃣ Follow the on-screen instructions, and you’re all set! ✅
💡 Tip: Make sure you’re connected to a Wi-Fi network during the setup process to avoid any errors.
🤖 Steps to activate your eSIM on Android
On Android, the process is just as easy, though the menu names may vary depending on your device’s brand (Samsung, Xiaomi, Huawei, etc.).
- 1️⃣ Go to Settings.
- 2️⃣ Open the Connections menu.
- 3️⃣ Tap on SIM Manager or Mobile Networks (depending on your device).
- 4️⃣ Select Add eSIM.
- 5️⃣ Choose Scan QR Code.
- 6️⃣ Scan the QR code and follow the instructions to complete the setup. ✅
📌 Note: Some manufacturers may use slightly different menu names, but in general, the steps are very similar.
What happens after you activate your eSIM?
Once you’ve completed the activation steps, your eSIM will be ready to automatically connect to a mobile network. That means you’ll be able to:
- 📶 Use mobile data.
- 📞 Make calls.
- 📩 Send and receive SMS messages.
And all of this without needing to insert a physical SIM card. It’s fast, easy, and far more convenient!
eSIM: The future of telecommunications
The eSIM marks a major step forward in the evolution of mobile connectivity. It’s more flexible, more secure, and eliminates the hassles of physical SIM cards.
So don’t get left behind, switch to eSIM and simplify your life. No more worrying about swapping SIM cards, losing them, or paying sky-high roaming fees.
Activate your eSIM and connect to the world in just minutes!
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