South Korea
Manage your plan through the link sent to your email. Check your usage, top up your balance (if supported), and handle everything in one place.
Check compatibility
South Korea
💡 Fun fact: Jeju Island is a volcanic island and designated UNESCO World Heritage site
South Korea
Can I activate my plan later?
Yes. You have 180 days to activate. Validity only starts when you first connect at your destination, so you can install your eSIM ahead of time, worry-free.
Quantity
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Features +
- Use In: 🇰🇷
- Top Up Available: Yes
- Data Only: Yes
- SMS: No
- Calls: No, only through apps (VOIP)
- Compatibility: Check compatibility
Technical Specifications +
- Pre-Activation Days: 180 Days
- Hotspot: Yes
- Speed Reduction: No
- Coverage: KR
- Networks: KR - SKTelecom 5G, LG U+ 5G
- Supported Countries: South Korea
Additional Information +
South Korea eSIM keeps you connected from the moment you land at Incheon Airport, with instant data access across the country's leading 5G networks. Connect through SKTelecom or LG U+ 5G for reliable coverage in Seoul and nationwide. Data-only connectivity lets you make voice calls through apps like WhatsApp and Telegram, keeping communication costs low while enjoying premium network quality.
Unlike international roaming charges that spike unexpectedly, a South Korea eSIM with prepaid data puts you in complete control of spending. Hotspot capability means you can share connectivity with travel companions, and 5G speeds never reduce as you use more data. Activate up to 180 days in advance and top up anytime you need additional data.
Fast networks, instant setup, no roaming surprises.
How it works
How the Roamex eSIM works
Choose your destination and duration, then get your eSIM. Make sure your device supports eSIM using our compatibility checker.
We’ll send your QR code and manual setup instructions straight to your email, making it easy to install your eSIM.
Install and activate your eSIM before you travel. You only need an internet connection to finish activation.
Recommended Destinations
Frequently Asked Questions
Roamex is your travel eSIM solution for staying connected worldwide.
We know plans can change. You can request a refund if your device isn’t compatible or if you canceled your trip and no longer need the eSIM. Refunds are only available if the eSIM has not been activated and has been inactive for less than 180 days from purchase. Used or expired eSIMs cannot be refunded. Once approved, refunds are returned to your original payment method within 5–10 business days.
When your eSIM is delivered, it comes with its own dedicated status page. You can use this page to top up your data and monitor your usage whenever you need.
Yes, you can use them together. Most modern devices support dual SIM, which means you can keep your physical SIM active while using your Roamex eSIM for data. Your physical SIM can handle calls and texts, while the Roamex eSIM provides mobile data during your trip.
If you can’t find your eSIM QR code, first check your inbox, spam folder, and promotions folder. The code is sent instantly to the email used to place the order. If you still can’t find it, send us a WhatsApp message and we’ll check your order and resend it for you.
Yes, you can reuse your Roamex eSIM if it hasn’t expired and you’re traveling to the same destination or region. Check your status page to see if it’s still active. If it is, just top up your data and validity will be extended. For a new destination or region, you’ll need a new eSIM.
Yes, data roaming must be enabled for your Roamex eSIM to work. You will not be charged extra, as all data goes through your Roamex plan. Make sure the Roamex eSIM is selected for mobile data. If needed, remove your primary SIM to avoid using it by mistake. Roamex is not responsible for roaming charges if your personal SIM is still set as the active data line.
You can check your data usage on the personal status page that was sent to your email when your eSIM was delivered. It shows your remaining data and validity in real time.
The number of activations doesn’t matter, but an eSIM can only be used on the same device it was first activated on. If you delete it by accident, you can add it again, but only on that original device.
We don't apply speed limits to our plans. You’ll have access to the fastest available 4G and 5G networks, with speeds depending on the local infrastructure in the country you’re using the service in. Hotspot usage is fully supported and not limited. You can share your connection freely, using data from your own plan. Unlimited plans are subject to a Fair Usage Policy, which is clearly described on the product page above the “Add to cart” button.
Change of plans? No problem at all!
Purchase your eSIM with peace of mind. You can request a refund within 6 months if it falls within our refund policy.
Things you should know about eSIMs
Data-only service
This eSIM is data-only. It doesn’t support traditional calls or SMS, but you can use any app that works over the internet to stay connected.
Check Device Compatibility
Before installation, make sure your phone is unlocked and supports eSIM technology. Use our compatibility checker to confirm.
Install before you travel
Scan the QR code in your phone’s settings to add the data plan.
