eSIM
Beginner’s Guide to Travel eSIMs: What They Are & How to Use Them [2026]
New to eSIMs? Learn what a travel eSIM is, how it works, and how to set it up before your trip for instant connectivity when you arrive.
TL;DR:
- Travel eSIMs let you connect to mobile networks without inserting a physical SIM card.
- You can install your eSIM in minutes and activate it when you arrive at your destination.
- Providers like Nomad eSIM offer coverage across 200+ destinations worldwide.
- For most travelers, eSIM is the easiest way to stay connected abroad.
What is a travel eSIM?
A travel eSIM is a digital SIM card built into your device that lets you connect to mobile networks without needing a physical SIM.
Instead of inserting a SIM card, you:
- download an eSIM profile
- install it on your phone
- connect to a local network when you arrive
This removes the need to buy SIM cards at airports or swap cards between devices.
How does a travel eSIM work?
Travel eSIMs work by downloading a mobile plan directly onto your phone.
Here’s the typical flow:
- Choose and purchase a plan online
- Install the eSIM (usually via QR code)
- Activate it when you reach your destination
- Your phone connects to a local network automatically
Most providers allow installation in advance, with activation triggered when you connect to a supported network.
How do you install a travel eSIM?
Installing an eSIM usually takes just a few minutes.
Common methods:
- QR code scan (most common)
- in-app installation
- manual input (backup option)
On most devices:
- go to Settings → Mobile Data → Add eSIM
- scan the QR code
- follow the on-screen instructions
The process is designed to be simple and doesn’t require technical knowledge
When should you install and activate your eSIM?
- Install: before your trip (recommended)
- Activate: when you arrive at your destination
Installing early ensures:
- you’re ready to go once you land
- no need to rely on airport WiFi
- no setup stress after arrival
Most eSIM plans only activate when you connect to a local network, not during installation.
What are the benefits of using a travel eSIM?
1. No physical SIM card needed
No swapping, no losing SIM cards, no opening your SIM tray.
2. Instant connectivity
You can get online as soon as you land, without visiting a store.
3. Flexible plans
Choose plans based on:
- country
- region
- data usage
4. Multiple eSIM profiles
You can store multiple eSIMs and switch between them easily in your phone settings.
Are travel eSIMs better than SIM cards?
For most travelers, yes.
eSIM advantages
- faster setup
- no physical handling
- can be installed before travel
SIM card advantages
- sometimes cheaper
- widely available
For short trips and convenience, eSIM is usually the better choice.
Can I use eSIM and my SIM card at the same time?
Yes, most modern smartphones support dual SIM functionality:
- eSIM → mobile data
- physical SIM → calls and SMS
This lets you:
- receive OTPs and messages
- avoid roaming charges
Do I need to remove my SIM card to use eSIM?
No, your eSIM works independently of your physical SIM. You can keep your SIM in your phone and simply:
- turn off data roaming on your main SIM
- use the eSIM for data
How do I choose the right eSIM plan?
Consider:
- destination (country or region)
- trip duration
- data usage
For example:
- short trips → smaller plans (3–5GB)
- longer trips → larger or unlimited plans
Providers like Nomad eSIM offer flexible options across different destinations and usage levels.
What happens if I run out of data?
You usually have two options:
- buy an add-on (top-up)
- purchase a new eSIM plan
Add-ons are typically faster and don’t require reinstalling your eSIM.
Frequently Asked Questions (FAQs)
1. Can everyone use a travel eSIM?
To use a travel eSIM, all you need is an eSIM-compatible device. As long as your device is eSIM-compatible and it isn't carrier-locked, you will be able to use a travel eSIM!
2. Do I need to download any apps to use an eSIM?
Technically, no. To use an eSIM, all you need to do is to install your eSIM. Most travel eSIM providers allow you to purchase an eSIM via a web store. However, if you were to purchase an eSIM from a local telco, they might sometimes require that you buy the eSIM via their app, and they might provision your eSIM directly on your device.
If you buy a Nomad travel eSIM, you can buy the eSIM without downloading any mobile apps. However, downloading the Nomad mobile app will make it easier for you to track your data usage and manage your eSIMs on the go!
3. When should I buy my travel eSIM?
You will need a stable internet connection to buy and install your eSIM. So, it is recommended that you buy your eSIM while you are still at home, where you have access to a stable internet connection.
4. How far in advance should I buy my travel eSIM?
It depends on the terms of the eSIM that you purchase! Typically, providers of travel eSIMs will have a validity for which you need to activate your eSIM. For a Nomad eSIM, the plan has to be activated within 60 days of purchase.
5. Can I make calls using my travel eSIM?
It depends on the plan that is offered! Most providers of travel eSIMs are data-only eSIMs, which means you won't be able to make calls. However, there are some providers that also provide call and message features - check out the different plans to find out what is included.
But, even with a data-only eSIM, you can still make calls using your messaging apps or through social media.
6. Can I still use my messaging apps with a travel eSIM?
Yes, you can! With the right settings, the travel eSIM is just a source for mobile data, and will not change the number that you are using for your messaging apps!
Get a Nomad eSIM for your next trip
All ready to embark on your travel eSIM journey? Get a travel eSIM from Nomad!
Nomad eSIM offers data plans in over 200 destinations, and you can be sure to find one that is suitable for your travel needs.
If you are unsure about how much data you need for your trip, Nomad eSIM also has a Data Calculator that can help you find the plan that is most suitable for you. Also check out our blog post on data-saving tips when traveling to keep your data usage in check when traveling.
Nomad eSIM has a 24-hour customer support team. So, in the event where you face difficulties while using your eSIM, rest assured there will be someone available to help you resolve your issues!
