Seoul eSIM for 7 days
$4.29
3 GB, valid 15 days on SKTelecom. Enough for maps, rides, messages and photos for a week.
Choose 7 daysYour install link arrives the moment you pay, on screen and by email. Track your data in the free NUM app. If we can’t issue it, you get a full refund.
The short answer
The best eSIM for Seoul, South Korea is the one that fits your trip and your networks. For two weeks of photos, maps and social, NUM picks 5 GB for 30 days at $5.89, as of 4 Nov 2026.
| Plans from | $0.79 on 4 Nov 2026 |
|---|---|
| Networks on local plans | SKTelecom, LG Uplus |
| 7 days | 3 GB, 15 days, $4.29 |
| 14 days | 5 GB, 30 days, $5.89 |
| 30 days | 10 GB, 30 days, $6.89 |
| 45+ days | 20 GB, 90 days, $34.19 (regional plan, 20 countries) |
| Phone number | None, data only |
| Payment | Apple Pay, Google Pay or card |
A regional plan may list fewer networks here than a local plan. If you need a particular network, check that plan’s network list in the shop before you pay.
Coverage in South Korea: what to know
A guide describes widespread 5G across Seoul, including in the subway; independent measurements were not cited.
Opensignal's December 2025 report gave SK Telecom the top coverage score (9.4 of 10), ahead of KT (9.1) and LG U+ (8.6), while LG U+ led 5G availability at 90%. All three tied on time connected.
Checked 3 Nov 2026. Source: insights.opensignal.com. Coverage changes, so check your route before you rely on it.
How it works
Pick your trip
Choose 7, 14 or 30 days. The shop picks the data for how you use your phone, and shows the networks.
Pay in seconds
Apple Pay, Google Pay or a card. Your install link arrives the moment you pay, and by email too. No account needed.
Install, then land online
Install at home on wifi with one tap, switch it on as the plane lands, and you’re online walking off. Your home number stays on for calls and codes.
Seoul eSIM for 7, 14 and 30 days
Seoul eSIM for 14 days
$5.89
5 GB, valid 30 days on SKTelecom. Room for social, photos and a few video calls over two weeks.
Choose 14 daysSeoul eSIM for 30 days
$6.89
10 GB, valid 30 days on SKTelecom. A month of everyday use, with some streaming and hotspot.
Choose 30 daysSeoul eSIM for longer trips
$34.19
20 GB, valid 90 days, a regional plan covering 20 countries. For long stays, remote work and heavy use.
Choose longer tripsNUM’s pick for each trip length on 4 Nov 2026, for photos, maps and social. Prices in US dollars; the price on the pay button is the price you pay.
South Korea data plans that work in Seoul
| Data | Valid for | Network | Price | Per GB |
|---|---|---|---|---|
| 500 MB | 7 days | SKTelecom 5G, LG Uplus 5G | $0.79 | $1.62 |
| 1 GB | 7 days | SKTelecom 5G, LG Uplus 5G | $1.79 | $1.79 |
| 2 GB | 15 days | SKTelecom 5G, LG Uplus 5G | $2.39 | $1.20 |
| 3 GB | 15 days | SKTelecom 5G, LG Uplus 5G | $4.29 | $1.43 |
| 3 GB | 30 days | SKTelecom 5G, LG Uplus 5G | $4.59 | $1.53 |
| 5 GB | 30 days | SKTelecom 5G, LG Uplus 5G | $5.89 | $1.18 |
13 plans in the shop on 4 Nov 2026; 6 shown, least money first. See every plan and today’s prices.
How much data do you need in Seoul?
| How you use it | 7 days | 14 days | 30 days |
|---|---|---|---|
| Maps and messages | 1.4 GB | 2.8 GB | 6 GB |
| Plus social | 2.8 GB | 5.6 GB | 12 GB |
| Lots of video | 11 GB | 21 GB | 45 GB |
Online as you land in Seoul
Switch the line on as the plane lands and you’re online walking off, ready to call a ride into town:
Across Seoul
The same plan covers you in Gangnam, Hongdae, Itaewon and Myeongdong, and on the way between them.
Planning Seoul
Questions people ask about a Seoul eSIM
Does a South Korea eSIM work in Seoul?
Yes. A South Korea eSIM runs on South Korea’s own networks (SKTelecom, LG Uplus), so the same plan works in Seoul and everywhere else those networks reach in the country. There is no separate Seoul plan to buy.
How much does an eSIM for Seoul cost?
On 4 Nov 2026, South Korea plans started at $0.79 and went up to $72.59 for the biggest. NUM’s 7-day pick was 3 GB for $4.29. The shop always shows today’s price, and the price on the pay button is the price you pay.
How much data do I need for Seoul?
For a week of maps, rides, messages and photos most people use about 3 GB; for two weeks about 5 GB; for a month of social and video, 10 GB or more.
Will I be online when I land in Seoul?
Install the eSIM at home on wifi, then switch the line on as the plane lands at Seoul Gimpo International Airport (GMP), Incheon International Airport (ICN). You are online walking off the plane, with no SIM counter and no airport wifi.
Can I use it as a hotspot?
Hotspot works on most plans, so one eSIM can get a laptop or a travel partner online too.
Why does my eSIM show another carrier’s name?
Many travel eSIMs are issued by one carrier and roam on local networks, so your phone can show the issuing carrier’s name while your data runs on a local network. Keep data roaming on for the eSIM.
Will it work on my phone?
Dial *#06# on the phone you’re taking. If you see an EID number, it takes an eSIM. Every iPhone from the XR and XS on does, and the SE from 2020, as do Google Pixel 3 and later and Samsung Galaxy S20 and later. The phone must be carrier-unlocked. Not sure? Text PHONE and your model and we’ll check.
When do I install it?
At home, on wifi, before you fly. Then switch it on when you land. Tell us your landing day and we text you the switch-on steps that morning.
Does it come with a phone number?
No. It’s a data-only eSIM. WhatsApp, LINE, iMessage and FaceTime all work over it, and your home number can stay on for calls and codes.
What if it doesn’t work?
If we can’t issue your eSIM, we refund you in full. If it won’t install or connect, text us and we help you get connected.
An eSIM with a Seoul concierge inside.
Text NUM a table for tonight, a driver at 6 am or a pharmacy that’s open now in Seoul. Any language, any hour, on the data you just bought.
Get my Seoul eSIM