Quick answer: to activate an eSIM on a Samsung Galaxy, go to Settings → Connections → SIM manager → Add eSIM → Scan QR code, then follow the prompts. The process usually takes a few minutes. The steps are similar across recent Galaxy phones including the S25, S24, S23, foldables, and selected A-series models although options can vary by model, region, and carrier.
Whether you have a new Galaxy S25 or a Galaxy you’ve had for a couple of years, the basic process is similar. This guide covers how to check whether your phone is ready, the three main activation methods, converting a physical SIM to eSIM, dual-SIM setup, using a travel eSIM, and fixes for common activation problems.
Does your Samsung support eSIM?
Many recent Samsung Galaxy phones support eSIM, but availability can vary by model, country, and carrier. Samsung’s current support information lists the Galaxy S25, S24, S23, S22 and recent Z-series devices among its eSIM-compatible phones. Selected A-series models also support eSIM, with regional restrictions on some models.
| Samsung range | eSIM support |
| Galaxy S25 / S24 / S23 / S22 | Yes |
| Recent Galaxy Z Flip & Z Fold models | Yes |
| Select Galaxy A-series | Yes — varies by model/region |
| Older / entry-level models | Check the exact model |
The fastest way to confirm your own phone is to open Settings → Connections → SIM manager. If you see an Add eSIM option, your phone supports eSIM.
You can also run Airhub’s eSIM compatibility checker or dial *#06# and look for an EID.
Important: eSIM availability can vary depending on the country where the phone was purchased and the carrier providing the service.
Before you start
Most activation headaches trace back to skipping one of these. Two minutes now can save you the hassle later:
- Your phone is carrier-unlocked. A locked Galaxy may reject an eSIM from another provider. Check with your carrier if you’re unsure.
- The software is up to date. Go to Settings → Software update → Download and install and install any available updates.
- You’re on Wi-Fi. Installing an eSIM requires an internet connection.
- Your QR or activation code is ready — ideally on another screen or printed so you can scan it easily.
How to activate an eSIM on Samsung (S25 and other Galaxy phones)
There are three common ways to activate an eSIM. The QR-code method is the most common.
Method 1 — Scan a QR code
- Open Settings → Connections → SIM manager.
- Tap Add eSIM.
- Tap Scan QR code.
- Point the camera at the QR code from your provider.
- Confirm the plan details and wait for the eSIM profile to download.
- Give it a clear name, such as Travel data, so you can identify it later.
Once the eSIM profile is installed, it will appear in your SIM manager. Depending on the device, carrier, or software version, you may need to restart your phone before the eSIM connects properly.
Method 2 — Enter an activation code manually
No QR handy, or viewing it on the same phone? In SIM manager → Add eSIM, choose the option to enter the activation information manually and type the details provided by your eSIM provider.
This is useful when you cannot scan a QR code directly.
Method 3 — Carrier app or eSIM setup
Some carriers support direct eSIM setup through their own services or apps. Depending on your carrier and device, Add eSIM may provide options for downloading or setting up a carrier plan.
Follow the carrier’s instructions and approve the eSIM installation when prompted.
Samsung also supports eSIM Simple Setup with selected carriers, where the mobile plan can be downloaded and activated directly through the device.
Convert a physical SIM to eSIM
If you want to free up the physical SIM slot, the Galaxy S25 can convert a physical SIM to an eSIM when your carrier supports the feature.
- Go to Settings → Connections → SIM manager.
- Tap the physical SIM you want to convert.
- Tap Convert to eSIM.
- Follow the on-screen instructions.
This feature depends on carrier support, so the Convert to eSIM option may not appear on every device or network.
Dual SIM and multiple eSIM profiles on Samsung
Recent Galaxy phones offer flexible dual-SIM configurations, but the exact setup varies by model, region, and carrier.
Samsung’s Galaxy S25 specifications list these configurations:
- SIM 1 + SIM 2
- SIM 1 + eSIM
- Dual eSIM
The S25 also supports multiple eSIM profiles. However, the exact number of stored profiles and active lines can vary by device, region, software, and carrier, so there isn’t a universal profile limit that applies to every S25 variant.
You can manage your available SIMs and eSIMs through Settings → Connections → SIM manager.
The practical advantage is simple: you can keep your everyday number on one line and add a travel or work eSIM on another without physically changing your SIM card.
Using a travel eSIM on your Samsung
A travel eSIM is usually data-only, and that’s a feature, not a limitation. Here’s the setup many travelers want:
- Install the travel eSIM before you fly.
- In SIM manager, set the travel eSIM as your mobile data line.
- Keep your home SIM active for calls, texts, and bank 2FA on your usual number.
- Turn data roaming off on your home SIM to help avoid unexpected roaming charges.
- Turn on data roaming for the travel eSIM if your provider’s instructions require it.
- Label the profile clearly so you can identify it when you land.
That way, you can browse, use maps, message, and access online services through the travel eSIM while keeping your regular number available.
New to eSIMs? See how to install an eSIM for the full walkthrough.
Troubleshooting: eSIM not activating
Most issues are quick fixes:
- QR code won’t scan. Increase the brightness of the screen displaying the QR code, make sure the code isn’t blurry, and hold the phone steady. If scanning still doesn’t work, try entering the activation details manually.
- No data after activation. Check that the eSIM is turned on and selected as your mobile data line. If your provider requires data roaming, make sure it is enabled for the eSIM.
- “Add eSIM” is missing. Update your phone, check your exact model and region, and confirm that your carrier supports eSIM.
- Profile downloaded but won’t connect. Toggle airplane mode on and off, check your network settings, or try manually selecting a supported network under Settings → Connections → Mobile networks.
- Phone is carrier-locked. A locked phone may prevent you from using an eSIM from another provider. Contact your carrier to confirm the unlock status.
eSIM vs physical SIM on your Samsung
Both options can be useful on a Samsung Galaxy, so it helps to know when each one makes sense:
| Feature | eSIM | Physical SIM |
| Format | Built into the phone | Removable nano-SIM |
| Setup | Scan a QR code, use an activation code or supported app | Insert into the SIM tray |
| Switching plans | Change through phone settings | Remove and replace the card |
| Multiple profiles | Store multiple eSIM profiles | Use a physical SIM card |
| Travel | Add travel plans digitally | Buy or replace a SIM card |
| If lost/stolen | No physical SIM card to lose | Card can be lost or damaged |
For travel and quick plan changes, eSIM is often the easier choice. A physical SIM still makes sense if your phone doesn’t support eSIM, your carrier doesn’t offer eSIM, or you want a removable SIM card.
Get a travel eSIM with Airhub
Once your Samsung is set up, you’ll need a compatible plan to use with it. Airhub offers prepaid travel eSIMs that you can purchase and install digitally before your trip.
Choose a country-specific or global eSIM plan, install the eSIM, and connect when you arrive at your destination.
Airhub also offers a dedicated USA eSIM for travelers heading to the United States.
Before purchasing any travel eSIM, check that your Samsung Galaxy model supports eSIM and that the device is unlocked if required by the provider.
FAQs
1. How do I activate an eSIM on my Samsung Galaxy?
Go to Settings → Connections → SIM manager → Add eSIM → Scan QR code, then follow the prompts. You can also enter activation information manually or use a carrier-supported setup method.
2. Does the Samsung Galaxy S25 support eSIM?
Yes. Samsung lists the Galaxy S25 series as eSIM-compatible. The S25 specifications also list SIM 1 + SIM 2 / SIM 1 + eSIM / Dual eSIM configurations. Exact availability can vary by region and carrier.
3. Which Samsung phones support eSIM?
Many recent Galaxy S-series and Z-series phones support eSIM, along with selected A-series models. Samsung notes that eSIM availability can vary by country and carrier. Check your exact model and open Settings → Connections → SIM manager to confirm.
4. How many eSIM profiles can the Galaxy S25 store?
The Galaxy S25 supports multiple eSIM profiles, but Samsung does not specify one universal profile limit that applies to every S25 variant, region, and carrier. The number of stored profiles and active lines can vary.
5. Can I convert my physical SIM to an eSIM on the S25?
Yes, where your carrier supports it. Go to Settings → Connections → SIM manager, select the physical SIM, and look for Convert to eSIM.
6. Why won’t my eSIM activate on my Samsung?
Common causes include an outdated phone, carrier restrictions, an incorrect QR code, an unreliable internet connection, or a locked device. Update your phone, connect to Wi-Fi, check your activation details, and confirm that your phone is unlocked if required.
7. Will a travel eSIM change my phone number?
Usually, no. Most travel eSIMs are data-only. You can keep your regular SIM active for your existing number while using the travel eSIM for mobile data.
8. Can I use one eSIM plan on more than one device?
Generally, an eSIM profile is intended for the device on which it was installed. However, some carriers and compatible Samsung devices support eSIM Instant Transfer, allowing an eSIM and number to be transferred between supported devices. If transfer isn’t available, follow your provider’s reinstallation or replacement process.
Final Thoughts
Activating an eSIM on the Samsung Galaxy S25 is a convenient way to add another mobile plan without constantly changing physical SIM cards.
The basic process is:
Settings → Connections → SIM manager → Add eSIM → Scan QR code
Before purchasing an eSIM, confirm that your exact Samsung Galaxy model supports eSIM, your carrier or eSIM provider supports the service, and your phone is unlocked if required.
For travelers, eSIM is particularly useful because you can install a travel plan before leaving home, keep your regular number available, and use the eSIM for mobile data when you arrive at your destination.
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