South Korea eSIM
Mobile data in South Korea from $2.99. Install one OurByt eSIM once, add a plan for South Korea before you fly, and you're online the moment you land.
- 1 GB to 20 GB
- 7 to 30 days
- Starts when you land
South Korea eSIM plans
Prices in US dollars. Buy in the OurByt app with card, Apple Pay or Google Pay. Every plan starts when you first connect in South Korea.
| Data | Valid for | Price | Per GB |
|---|---|---|---|
| 1 GB | 7 days | $2.99 | $2.99 |
| 3 GB | 15 days | $7.99 | $2.66 |
| 5 GBMost picked | 30 days | $12.99 | $2.60 |
| 10 GB | 30 days | $22.99 | $2.30 |
| 20 GB | 30 days | $41.99 | $2.10 |
Data only: no phone number is included. Need more? Add another plan in the app and it joins the same eSIM.
Visiting more than one country?
These plans cover South Korea and other countries on the same eSIM.
How it works
- Get the app and check your phoneThe app checks your phone supports eSIM before you pay.
- Pick a plan for South KoreaYour first plan comes with your OurByt eSIM. Install it once, on Wi-Fi, ideally before you travel.
- Land and switch on dataTurn on the OurByt eSIM for mobile data and allow data roaming for it. Your home SIM can stay on for calls and texts.
Good to know in South Korea
South Korea has fast mobile networks almost everywhere, including the subway. Local map apps work better than global ones here, and they need data.
KakaoTalk is the main messaging app in South Korea.

Call anyone back home from South Korea
With OurByt calling credit you can call any phone, landline or mobile, over your data or Wi-Fi. Credit packs start at $5, and you see the rate before every call. Want people to call you back? Add a real US, UK or Canadian number from $4.99 a month.
South Korea eSIM questions
How much is an eSIM for South Korea?
OurByt plans in South Korea start at $2.99 for 1 GB valid for 7 days. The most picked plan is 5 GB for 30 days at $12.99. Prices are in US dollars, and the app shows the final price before you pay.
How much data do I need in South Korea?
For a week of maps, messaging, ride-hailing and social media, 3 to 5 GB is usually plenty. If you will stream video, make lots of video calls or work online, choose 10 GB or more. Running low? Add another plan in the app at any time.
When does a South Korea plan start?
When your phone first connects to a network in South Korea, not when you buy it. So you can buy before you fly, and the days only start counting once you arrive.
Do I need a new eSIM for South Korea?
No. You install the OurByt eSIM once. A South Korea plan, and every plan you buy after it, is added to that same eSIM, so there is nothing new to scan next time.
Does the South Korea eSIM include a phone number?
No, data plans are data only. WhatsApp, FaceTime and other apps work over the data, your home SIM can stay on for calls and texts, and OurByt calling credit lets you call any phone from the app. You can also add a real US, UK or Canadian number.
Does a South Korea plan work in other countries?
No, a South Korea plan works in South Korea only. Visiting more countries? The Asia eSIM covers 19 countries including South Korea, from $3.99.
Will the eSIM work on my phone?
Most iPhones from the XS onward, Google Pixel 3 and later, and recent Samsung Galaxy phones support eSIM, as long as the phone is not locked to a carrier. The app checks your phone before you pay.
More answers in the help centre. Is your phone ready? See eSIM compatible phones.
Nearby destinations
Get set up before you fly
Download OurByt, check your phone and add a plan for South Korea in a few minutes.