If you’re planning a trip abroad in 2026, you’re probably concerned about the roaming rates of your current mobile carrier. And you’re right to worry: roaming fees can reach between €6 and €18 per MB, and up to €25 per GB with some Spanish operators.
The good news is that there is a much smarter alternative. International SIM cards allow you to connect without surprises on your bill, with transparent prices that you know from the moment you make the purchase.
You have two main options to maintain connectivity during your trip: a physical international SIM card or an international eSIM. Both solutions guarantee international internet access without the abusive costs of traditional roaming.
In this article, we’ll help you understand exactly how these alternatives work, what advantages they offer compared to conventional roaming, and how to activate your international SIM card so you can travel connected with total peace of mind.
What is an international SIM and why do you need one?
An international SIM works as a bridge that connects you to mobile networks in multiple countries without needing to purchase a local plan in each destination. While traditional SIM cards are linked exclusively to a single national carrier, international SIM cards operate through agreements with telecommunications companies worldwide.
The market offers two formats you should know about:
👉 A physical international SIM card, which you insert into your phone just like any standard SIM card.
👉 An international eSIM, a digital chip already integrated into your device that is activated simply by scanning a QR code.
This second option eliminates the need to physically handle SIM cards and allows you to store multiple carrier profiles simultaneously.
But why do you really need one when traveling?
The answer is simple: it guarantees immediate access to international internet without relying on public WiFi networks, which can often be insecure. In addition, you maintain full control over your expenses through prepaid plans, eliminating any surprises on your bill.
The numbers are compelling: international SIM cards can help you save more than 85% on roaming costs.
💡 Tip: HOLASIM stands out by offering solid coverage through agreements with local networks, automatic activation when you arrive at your destination, and 24/7 customer support in Spanish. Buy your eSIM before departure and forget about searching for telecom stores when you land.
International roaming vs. international SIM: Full comparison for 2026
How much does roaming actually cost during your vacation?
The numbers are more alarming than you might imagine. Mobile operators charge between MXN 203.31 and MXN 304.97 per day for roaming, regardless of whether you consume 100 MB or several gigabytes.
Let’s look at a concrete example to understand the difference.
Imagine a typical 10-day trip where you:
- use Google Maps to navigate the city
- stay in contact with family via WhatsApp
- upload a few photos to Instagram
- make occasional video calls
This represents approximately 8–12 GB of total data consumption.
With traditional roaming, you would accumulate between MXN 2,033.10 and MXN 3,049.70 in daily charges.
By contrast, a 10 GB international SIM card valid for 15 days costs around MXN 243.97–320.
👉 The real savings range between MXN 1,626.50 and MXN 2,730 on a single trip.
But there is another advantage that goes beyond price: complete control over your spending.
Roaming creates constant uncertainty about how much you are spending until the bill arrives. With an international SIM, you know exactly what your data limit is from the start, and you can monitor it in real time through the provider’s app.
How to get and activate your international eSIM with HOLASIM
Getting your international eSIM with HOLASIM is easier than you might imagine. The process requires just three simple steps that any traveler can complete from home.
First, you need to verify that your device is compatible with eSIM technology. HOLASIM works with more than 200 devices, including iPhone XR or newer models and Samsung Galaxy S20 and later. This wide compatibility means most modern smartphones can use this solution.
The purchase process is completely digital and takes less than five minutes:
✅ Go to holasim.com
✅ Select your travel destination
✅ Choose the plan that best fits the duration of your stay
✅ Add the plan to the cart, complete the payment securely with your card, and enter your email address correctly
You will receive two important messages:
- one confirming your purchase
- another containing the QR code required for installation
Activation is just as simple.
To activate your international SIM card, scan the QR code using another device while your main phone is connected to a stable WiFi network.
👉 On iPhone, go to Settings > Mobile Data.
👉 On Android, go to Network & Internet > SIM.
Once installed, the eSIM automatically connects to the local network when you arrive at your destination.
HOLASIM offers unlimited data plans in more than 180 destinations, with durations ranging from 1 to 90 days. In addition, you have 24/7 Spanish-language customer support to resolve any questions during your trip.
Want to travel connected from the very first moment without complications?
Buy your international eSIM now and forget about searching for connectivity solutions when you arrive at your destination.
Frequently Asked Questions
📌 How can I avoid roaming charges when traveling abroad?
The best way to avoid roaming charges is to use an international SIM or eSIM before traveling. These cards allow you to connect to local networks with prepaid plans and fixed prices, eliminating surprises on your bill. Alternatively, you can disable data roaming on your device and rely only on public WiFi, although this option limits your connectivity.
📌 How do I disable data roaming on my phone?
On iPhone, go to Settings > Mobile Data and disable Data Roaming. On Android, go to Settings > Connections > Mobile Networks and uncheck Data Roaming. This prevents your phone from automatically connecting to foreign networks and generating additional charges.
📌 How much money can I save by using an international SIM instead of roaming?
You can save up to 80–85% on connectivity costs. While roaming may cost between MXN 203 and MXN 305 per day (reaching up to MXN 3,000 in 10 days), an international SIM with 10 GB for 15 days costs approximately MXN 240–320, generating savings of more than MXN 2,000 on a typical trip.
📌 What is the difference between a physical international SIM and an eSIM?
A physical international SIM is a card inserted manually into your phone, while an eSIM is a digital chip integrated into compatible devices that is activated by scanning a QR code. eSIM offers greater convenience by eliminating the need to handle physical cards and allowing multiple carrier profiles to be stored simultaneously.
📌 How much does an international SIM card cost and what does it include?
Prices vary depending on the destination and data allowance, but generally range between MXN 240 and MXN 320 for 10 GB plans valid for 15 days. These plans include prepaid data with fixed pricing, coverage in multiple countries, automatic activation upon arrival, and—depending on the provider, such as HOLASIM—24/7 Spanish-language customer support.