A travel eSIM lets you buy a data plan online, install it before you leave, and start using local mobile data the moment you land — no physical SIM card required. This guide walks through the entire process in order: confirming your device is compatible, choosing a plan, installing the eSIM profile, activating it abroad, and managing it when you return home.
Step 1: Confirm Your Device is eSIM-Compatible and Unlocked
Before purchasing any travel eSIM, verify two things: your device supports eSIM, and it is not carrier-locked to your home operator.
Check eSIM Support
On iPhone, go to Settings > Cellular (or Mobile Data). If you see an option labeled “Add eSIM” or “Add Data Plan,” your device supports eSIM. iPhone XS, XS Max, and XR (2018) and all later iPhone models support eSIM.
On Android (Google Pixel), go to Settings > Network & Internet > SIMs > Add SIM. If an eSIM setup option appears, your device is compatible. Google Pixel 3 and later generally support eSIM, though support on Pixel 3 varies by region and carrier variant.
On Samsung Galaxy, go to Settings > Connections > SIM card manager. Look for “Add mobile plan” or “Download SIM.” Samsung Galaxy S20 and later support eSIM on most variants.
If no eSIM option appears in your settings, your device does not support eSIM or the feature has been disabled by your home carrier.
Confirm the Device is SIM-Unlocked
A carrier-locked device typically cannot use eSIM profiles from other carriers. If you purchased your phone directly from a manufacturer or retailer (not through a carrier on contract), it is typically unlocked. If you purchased through a carrier, contact them to confirm your unlock status. In many countries, carriers are required to unlock devices at the end of a contract period.
Step 2: Choose a Travel eSIM Plan
Single-Country vs. Multi-Country Plans
Travel eSIM plans fall into two categories:
- Single-country plans — cover one specific destination. They typically offer better value for trips to one country.
- Multi-country or regional plans — cover a group of countries (for example, a Europe-wide plan or an Asia plan). Useful if you are visiting several countries on one trip. Coverage and speeds vary by country within the plan depending on the provider’s local network partners.
Data Volume
Estimate your data needs before purchasing. As a reference, navigation apps such as Google Maps use approximately 3–20 MB per hour. Streaming video (such as Netflix at standard quality) can use up to 0.7 GB per hour. For most travelers on a one-week trip using maps, messaging, and light browsing, 5–10 GB covers typical usage. If you plan to stream video or work remotely, consider 10–20 GB or an unlimited plan.
See How Much Mobile Data Do You Need? for detailed estimates by app.
Validity Period
Travel eSIM plans have a fixed validity window — commonly 7, 14, 30, or 90 days — that starts either from the moment of installation or from first activation. Confirm when the clock starts: some plans begin the moment you scan the QR code; others start on first use. Choose a plan whose validity window matches your trip length with a few extra days of margin.
Data-Only Plans
Most travel eSIMs are data-only. They provide an internet connection but no separate phone number for outgoing voice calls or SMS. Voice calls and text messages abroad can be handled through internet apps such as WhatsApp, FaceTime Audio, or Signal. If your device supports dual SIM and you keep your home SIM active, you can still receive calls and SMS on your home number while your data runs through the travel eSIM.
Compare travel eSIM plans for your destination on SimFinder →
Step 3: Purchase and Receive Your eSIM
Travel eSIMs are sold through the provider’s website or app. After completing the purchase, you receive either:
- A QR code (delivered by email or displayed in the provider’s app)
- A manual activation code containing an SM-DP+ server address and an activation code string
Save the QR code or code details somewhere accessible without mobile data — you will need them when installing the profile. Screenshot the QR code or note down the activation code before you leave home.
Do not share your QR code with anyone. Each QR code is tied to a single device and can only be scanned once.
Step 4: Install the eSIM Profile Before Departure
Install the eSIM profile while you have a reliable Wi-Fi connection at home. Downloading the profile requires an active internet connection.
On iPhone
- Go to Settings > Cellular (or Mobile Data)
- Tap Add eSIM
- Tap Use QR Code and scan the QR code from your provider
- If entering manually, tap Enter Details Manually and type in the SM-DP+ server address and activation code
- Follow the on-screen prompts to complete the download
- When asked to label the plan, give it a recognizable name such as “Travel eSIM”
- When asked which line to use for data, do not switch to the travel eSIM yet — keep your home SIM or home eSIM as the active data line for now
If your device asks whether you want to activate the plan immediately, choose to keep it turned off until you arrive at your destination.
On Android (Google Pixel)
- Go to Settings > Network & Internet > SIMs
- Tap Add SIM
- Select Scan QR code and scan the code from your provider, or tap Enter activation code to enter manually
- Follow the prompts to download the profile
- When the installation completes, keep the travel eSIM toggled off — do not set it as the active data line until you arrive
On Samsung Galaxy
- Go to Settings > Connections > SIM card manager
- Tap Add mobile plan or Download SIM
- Scan the QR code or enter the activation code manually
- Follow the prompts to complete the installation
- Keep the plan inactive until you arrive at your destination
After installation, the profile is stored on your device’s eUICC chip. The profile does not consume data until you activate it.
Step 5: Activate the eSIM When You Arrive
Once you land and your device detects a local network, switch to the travel eSIM.
Enable the Travel eSIM Line
On iPhone:
- Go to Settings > Cellular
- Tap the travel eSIM line you installed
- Toggle Turn On This Line to enabled
- Go back to Cellular Data and select the travel eSIM as your data line
- Enable Data Roaming for the travel eSIM line
On Android / Samsung:
- Go to your SIM manager settings
- Enable the travel eSIM line
- Set it as the preferred data SIM
Managing Dual SIM
If you are running your home SIM alongside the travel eSIM, confirm which line handles which function:
- Calls and SMS: use your home SIM (to keep your home number active)
- Mobile data: use the travel eSIM
- On iPhone, disable Allow Cellular Data Switching to prevent the device from automatically switching data back to your home SIM when signal is weak
If the eSIM Does Not Connect
If the travel eSIM does not connect automatically after activation:
- Confirm Data Roaming is enabled for the travel eSIM line
- Toggle Airplane Mode on, wait five seconds, then turn it off
- Go to Settings > Cellular > Network Selection (iPhone) or Mobile Network settings (Android) and try selecting the operator manually
- Contact your eSIM provider’s customer support — most offer chat support through their app or website
Step 6: Use the eSIM During Your Trip
Monitor Your Data Usage
Check your remaining data balance regularly, especially on long trips. Most providers show a usage counter in their app or on a dashboard on their website. On iPhone, you can also see data used by each line under Settings > Cellular > [line name].
If you are approaching your data limit and need more, some providers offer top-ups through their app without requiring a new QR code.
Make Calls and Send Messages
Because most travel eSIMs are data-only, use internet-based apps for voice calls and text messages:
- WhatsApp: voice calls use approximately 15–50 MB per hour; text messages use negligible data
- FaceTime Audio: available between Apple users
- Signal: encrypted calls and messages for all platforms
- Google Meet / Zoom: for video calls; 1:1 video at HD quality uses approximately 0.9–1.1 GB per hour
If you kept your home SIM active in a dual SIM setup, outgoing calls on your home number use your home carrier’s rates (standard international call rates apply).
Preserve Battery Life
Running two SIM lines simultaneously — dual SIM mode — increases battery drain compared to a single SIM. If battery life is a concern on a long day out, switch your home SIM line to a standby mode that does not actively search for signal. On iPhone, you can disable data for the home line while keeping it enabled for the travel eSIM.
Step 7: After Your Trip
Switch Back to Your Home Line
When you return home:
- Go to Settings > Cellular
- Set your home SIM or home eSIM as the active data line
- Disable Data Roaming on the travel eSIM (or disable the travel eSIM line entirely)
Manage the Remaining Profile
If the travel eSIM still has unused data and the provider allows it, keep the profile on your device for future trips to the same region.
If the plan has expired and you do not plan to return to that region, delete the profile to keep your eSIM list manageable:
On iPhone: Settings > Cellular > [travel eSIM line] > Delete eSIM
On Android: SIM manager settings > [travel eSIM line] > Delete or Remove
Before deleting, confirm the provider’s reinstall policy. Some providers allow reinstallation from their app; others issue a new profile at additional cost if you want to use the same region again.
Checklist: Travel eSIM from Start to Finish
Use this list before and during your trip.
Before departure
- Confirm device supports eSIM (Settings > Cellular on iPhone, SIM manager on Android)
- Confirm device is SIM-unlocked
- Estimate data needs for the trip
- Purchase a travel eSIM plan with the right country coverage and data volume
- Save the QR code or activation code (screenshot or print)
- Install the eSIM profile over Wi-Fi at home
- Label the plan clearly (e.g., “Travel eSIM”)
- Keep travel eSIM toggled off — do not activate yet
Upon arrival
- Enable the travel eSIM line in Settings
- Set the travel eSIM as the data line
- Enable Data Roaming for the travel eSIM
- Confirm the device has connected to a local network
- Test with a browser or app to confirm data is working
During the trip
- Monitor data balance through the provider’s app
- Use WhatsApp, FaceTime, or similar apps for calls and messages
- Top up data if running low (if supported by provider)
After the trip
- Switch data line back to home SIM or home eSIM
- Decide whether to keep or delete the travel eSIM profile
- Check provider’s reinstall policy before deleting
Frequently Asked Questions
Do I need to install the travel eSIM before I leave home?
Yes. Install the eSIM profile while you still have a reliable Wi-Fi connection at home. Downloading a profile requires an internet connection. Do not activate the plan until you land — keep it toggled off until arrival to avoid premature data usage.
Will my phone number still work while I use a travel eSIM?
If your device supports dual SIM, yes. Keep your home SIM active alongside the travel eSIM. Your home number continues to receive calls and SMS. Set the travel eSIM as the data line in your cellular settings.
Do travel eSIMs include a phone number for calls and SMS?
Most travel eSIMs are data-only. They provide an internet connection but no separate phone number for outgoing calls or SMS. Voice calls and text messages are handled through internet-based apps such as WhatsApp, FaceTime Audio, or Signal.
What if the eSIM does not connect after I land?
First, confirm that Data Roaming is enabled for the travel eSIM line in your cellular settings. Then toggle Airplane Mode on and off to force the device to search for a local network. If the issue persists, manually select the network operator in your carrier settings. Contact your eSIM provider’s support if none of these steps resolve the problem.
Can I reuse the same eSIM on my next trip?
It depends on the provider and plan type. Some providers allow you to top up an existing profile or reuse it if the data has not expired. Others issue a single-use profile that cannot be reinstalled once deleted. Check the provider’s reinstall policy before deleting the eSIM from your device.
What should I do with the travel eSIM after returning home?
Switch your cellular data line back to your home SIM or eSIM. If the travel eSIM has remaining data, keep the profile on your device for future trips (if supported by the provider). If the plan has expired and you no longer need the profile, delete it from Settings to keep your eSIM list tidy.
Related Guides
- 4 Ways to Stay Connected Abroad — Compare travel eSIM against local SIM, international roaming, and portable Wi-Fi hotspots
- What Is an eSIM? — Understand how eSIM technology works before your first setup
- How Much Mobile Data Do You Need? — Estimate your data requirements by app and usage pattern
- SIM & Mobile Glossary — Definitions for technical terms used in this guide
- How to Choose a Travel eSIM (coming soon) — Selection criteria, provider comparison, and red flags
- Using Dual SIM for Travel (coming soon) — How to keep your home number active alongside a travel eSIM