eSIM for South Korea
Data-only eSIM for travel, business or study in South Korea. Set it up on your phone before departure and get online as soon as you arrive.
- South Korea coverage
- Data-only: phone-number calls and SMS are not supported, but app calls such as LINE/WhatsApp work over data
- Easy one-tap setup right after purchase (QR/manual also supported — prepare over Wi-Fi before you go)
- Turn on mobile data after arrival to start using it
What this page covers
- Recommended plans
- How to choose data
- How to set up
- If it won't connect
- FAQ
Why use an eSIM in South Korea
- No hunting for a physical SIM at the airport—set it up on your phone before you go
- Keep your home SIM in place and just add an overseas data plan
- Use maps, ride-hailing, messaging and translation apps right after arrival
- Choose data and days to fit anything from short trips to long stays
Where your eSIM helps in Korea (local apps & network)
- For maps and directions, locals use Naver Map and KakaoMap. Google Maps has limited routing in Korea, so these two help you get around.
- Papago is strong for Korean translation—handy for menus and signs.
- For taxis, the Kakao T app helps you get around despite the language barrier.
- Korea has strong 4G/5G coverage, especially in cities. Cafe Wi-Fi exists, but your own line is reassuring on the move and for maps.
South Korea eSIM price guide (tax incl.)
| Data | Validity | Price（tax incl.） |
|---|---|---|
| 100MB | 7 days | ¥80 |
| 500MB | 7 days | ¥100 |
| 1GB | 7 days | ¥170 |
| 3GB | 15 days | ¥410 |
| 3GB | 30 days | ¥430 |
| 5GB | 30 days | ¥650 |
| 10GB | 30 days | ¥1,120 |
| 20GB | 30 days | ¥1,960 |
| 50GB | 30 days | ¥4,050 |
| Data / day | Price（tax incl.） |
|---|---|
| 500MB / day | ¥100 / day |
| 1GB / day | ¥200 / day |
| 2GB / day | ¥390 / day |
| 3GB / day | ¥580 / day |
| 5GB / day | ¥930 / day |
| 10GB / day | ¥1,190 / day |
Prices shown include tax and may change. Please check the latest on the comparison page before buying. See latest on the comparison page
How to choose your data amount
- Email, maps, messaging: about 0.3–0.5GB per day
- Plus SNS, photos, browsing: about 0.5–1GB per day
- Heavy video or tethering: about 1–2GB+ per day
- For long stays or uncertain use, consider an unlimited plan
These are rough guides; actual usage varies by app and behavior.
Setting up your eSIM for South Korea
Before departure, set up the eSIM over Wi-Fi (one-tap / QR / manual)
On arrival in South Korea, select Bloomy eSIM for mobile data
Turn on data roaming for the Bloomy eSIM line if needed
Device compatibility & SIM lock
You need an eSIM-compatible, carrier-unlocked device. Please check your device supports eSIM before buying.
If it won't connect in South Korea
Check that Bloomy eSIM is selected for mobile data, data roaming is on, and you have signal.
FAQ: eSIM for South Korea
Will this eSIM work in South Korea?
When should I set it up?
Can I use a phone number or SMS?
What happens if I run out of data?
Popular plans for South Korea
Prices are reviewed periodically. See the comparison page for all plans and the latest details.
Related pages
Heading to South Korea?
Compare data, days and coverage to find the plan that fits you.
Compare South Korea plans