When you travel internationally, a reliable internet connection is essential for looking things up, staying in touch and sharing your journey. Instead of using a traditional physical SIM or buying a local SIM, more and more travelers are choosing an eSIM for its convenience and lower costs.
So why should you use an eSIM for international travel? Let's look at what an international travel eSIM is, how it works and why it's the ideal solution for travelers!
Why use an eSIM for international travel?
An eSIM (embedded SIM) is a digital SIM built into your mobile device that lets you activate a mobile plan without inserting a physical SIM card. With an eSIM, you simply scan a QR code to install it and you're ready to use mobile services such as calls, texts and internet – quick and easy. Learn more: What is an eSIM?
When it comes to travel, an international travel eSIM is designed specifically for people going abroad. You can use it to get online – and on some plans even make calls and send texts – in another country without buying a physical SIM or turning on roaming with your home carrier. Note that travel eSIMs only work on compatible devices that are carrier-unlocked.
4 reasons to use an eSIM when traveling abroad:
- No SIM swapping: Keep your main SIM in your phone and stay reachable without interruption.
- Set up before you go: Buy and install your eSIM online before your trip in just a few simple steps.
- Save money: Many price options that are better value than traditional roaming – see our eSIM vs roaming comparison.
- Switch with ease: You can move to another provider's eSIM plan without inserting a new SIM card. Some regional eSIMs also work across several countries, which is ideal for multi-destination trips.
As travel becomes ever more convenient and staying connected becomes a must, eSIMs are increasingly popular with young people, independent travelers and anyone who likes to be in control of their trip.
Travel eSIM vs physical SIM, roaming and public WiFi
When preparing for an international trip, travelers usually have 3 common ways to stay online: a physical travel SIM, data roaming or public WiFi. In many situations, however, an eSIM is becoming the best option of all thanks to its convenience and reasonable cost. Here is a detailed comparison:
| Criteria | Travel eSIM | Physical SIM | Roaming | Public WiFi |
|---|---|---|---|---|
| Setup & use | Install in advance by scanning a QR code, connect as soon as you arrive | Must swap SIM cards by hand | Requires registering with your carrier | Must find networks and log in repeatedly |
| Pre-trip preparation | Buy online and install in advance | Must wait for delivery or buy on arrival | Costs are not clear in advance | Can't prepare – depends on what's available locally |
| Cost | Transparent, flexible by day or data allowance | Cheap but sometimes inconvenient | High, with frequent unexpected charges | Free, but at the expense of security |
| Security & stability | Stable and highly secure | Stable, but the SIM can be lost | Stable but drains the battery | High risk, vulnerable to attacks |
| Multi-country use | Flexible multi-country plans available | Need a new SIM in every country | Works, but very expensive | Must find a separate hotspot each time |
| Physical safety | No swapping, no lost SIM cards | SIM cards are easily lost or damaged | Keeps your main SIM, but easy to forget to turn roaming off | Not applicable |
Compared with other options, a travel eSIM stands out for its convenience, savings, easy cost control and secure connection. If you like to prepare before your trip and would rather not swap SIM cards or hunt for public WiFi when you're tired, an eSIM is the most modern and sensible choice.
How to install and use an international travel eSIM
Installing and using an eSIM is very simple – it only takes a few minutes to activate and connect to a mobile network. Below is a step-by-step guide to help you set up an eSIM on your device.
1. How to install a travel eSIM on your phone
The steps vary slightly between phone models, but the process is generally straightforward:
✅ On iPhone:
- Open Settings → tap Mobile or Mobile Data (Cellular).
- Tap Add eSIM (Add Mobile/Cellular Plan).
- Scan the eSIM QR code sent by your provider, or enter the eSIM details manually.
- Wait for activation, then set the eSIM as your primary data line if needed.
✅ On Android (Samsung, Google Pixel…):
- Open Settings → tap Connections → SIM manager (or Mobile network).
- Tap Add eSIM (Add mobile plan) → choose Scan QR code.
- Scan the eSIM QR code or enter the code manually as instructed.
- Finish the setup and set the eSIM as your mobile data source if needed.
💡 Notes:
- Make sure your device supports eSIM before installing – check here.
- Connect to a stable WiFi network so activation goes smoothly.
- If the option is available, set the eSIM as your primary data source for internet access.
► See the detailed guide to installing a travel eSIM on iPhone, Samsung and Google Pixel.
2. How to use an eSIM while traveling
Once your eSIM is installed, keep the following steps in mind to make sure you have a stable internet connection abroad:
- Before you leave: Check that the eSIM is installed and set as your primary data line. Turn off mobile data on your physical SIM if you want to avoid unexpected roaming charges.
- When you arrive: Turn on Mobile Data and Data Roaming (if required) so the eSIM can connect to the local carrier. See also our eSIM activation guide.
- Check your speed: If the connection is slow, go to SIM settings and manually select a carrier with a stronger signal.
- Manage your data: Some eSIMs have a data cap, so keep an eye on your usage to avoid running out mid-trip.
With just a few simple steps, you can use an eSIM to stay smoothly connected throughout your trip. Quick, convenient setup saves you time, so you don't have to worry about hunting for a SIM card at the airport or facing high roaming bills.
Where to buy a travel eSIM?
Choosing a reputable eSIM provider is key to a stable connection and fair prices when traveling abroad. Instead of spending time looking for a physical travel SIM at the airport or a local shop, you can easily order an eSIM online before your trip. TouriESIM is well worth considering thanks to its convenience, wide range of plans and Vietnamese-speaking customer support team.
TouriESIM offers eSIMs for many countries and regions around the world, with single-country plans, regional plans and a Global eSIM, so you can stay reliably connected in popular destinations such as Japan, South Korea and Thailand. TouriESIM also offers a range of flexible plans – daily plans, fixed-data plans and unlimited plans (depending on the destination) – to suit every traveler, from short getaways to longer journeys.
Find the right travel eSIM for your trip on our all destinations page!
An eSIM is a great way to save time and money when traveling internationally. With fast internet access, no need to swap physical SIM cards and easy plan management, eSIMs are fast becoming travelers' first choice. It's a convenient technology that is especially well suited to independent trips and journeys across multiple countries.
