eSIM South Korea: Prepaid Data Plans
South Korea eSIM plans start at $3.49 for 1 GB (14 days). 75 plans from 6 vetted providers on SK Telecom, LG U+, and KT, hotspot on every plan. Buy online, install and top up in one MobiMatter app. Prices updated ·
South Korea eSIM at a glance
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Vietnam Plus 60 GB 60 Days
TSimTech
BEST COVERAGE
60 days
60 GB
$42.99
🇰🇷 🇹🇭 🇻🇳 & 3 other countries
Networks used by South Korea eSIMs
Each plan connects to the networks listed on its page, so you choose your carrier before you buy. Coverage varies by area: a listed network does not guarantee signal everywhere.
Frequently Asked Questions
What is the cheapest eSIM for South Korea?
The cheapest South Korea eSIM on MobiMatter costs $3.49 for 1 GB, valid for 14 days. Prices come live from 6 vetted providers and change often; the price on this page is the current one.
Is it worth getting an eSIM for South Korea?
For most tourists and business travellers, yes, if your phone supports eSIM. South Korea plans start at $3.49 for 1 GB, and you install the eSIM before you fly, so you have data when you land, without queuing for a tourist SIM at the airport. If your home plan already covers South Korea at no extra cost, you may not need one.
Which networks do South Korea eSIMs use?
South Korea eSIMs on MobiMatter run on SK Telecom, LG U+, and KT. Every plan names its network, so you can choose the carrier you prefer before you buy.
Which eSIM is best for South Korea?
Our best plan for South Korea right now is 50 GB for 30 days at $23.99 from TSimTech. We rank plans on quality and value for money, and this one comes first in the list.
How much data do I need for a week in South Korea?
It depends on how you use your phone. Light use (maps, messaging, browsing) takes about 0.5–1 GB a day; scrolling a lot of social video can take 2–3 GB or more. Typical use per hour:
- Instagram Reels, TikTok: 0.3–1 GB
- YouTube, Netflix at standard quality: 0.5–1 GB
- Video calls (WhatsApp, FaceTime): 0.5–1 GB
- Voice calls (WhatsApp, FaceTime Audio): 50–70 MB
- Maps and navigation: 2–6 MB
- Messaging and browsing: 50–150 MB
The cheapest South Korea plan with at least 5 GB for a week or longer is 5 GB for 30 days at $4.99.
Do South Korea eSIMs support 5G and hotspot?
5G is available on 40 plans for South Korea, where the local network has 5G coverage; the others use 4G/LTE. Hotspot (tethering) works on every plan, so you can share your data with other devices.
Does a South Korea eSIM come with a phone number?
Most travel eSIMs, including most South Korea plans, are data-only and have no local number. You keep your usual number on your main SIM for calls, texts and WhatsApp. Plans that include a number or minutes say so on the plan page.
Will my phone work with a South Korea eSIM?
Yes, if it supports eSIM and is not locked to a carrier. To check, dial *#06#: if an EID number appears, your phone supports eSIM. Most iPhones from the XS/XR on, Galaxy S20 and later and Pixel 3 and later do, except models sold in mainland China.
Can I keep my own SIM and WhatsApp while using a South Korea eSIM?
Yes. Your eSIM and your main SIM can be active at the same time. Use the eSIM for mobile data with data roaming on for that line, and turn data roaming off on your home SIM to avoid charges. WhatsApp keeps working on your usual number.
How it works
- 1
Checkout using secure payment methods
Get your eSIM by email within seconds.
- 2
Install eSIM
Instantly get your eSIM and configure it in your eSIM compatible device
- 3
Enjoy high speed connectivity
Once eSIM is configured, you can enjoy high speed roaming data connectivity
Why get your South Korea eSIM from MobiMatter
All your eSIMs in one app
Buy, install and top up every eSIM in the MobiMatter app, and check how much data you have left at any time.
Choose your network
MobiMatter shows which network each plan uses, so you choose your carrier before you buy. Pick from 75 plans from 6 vetted providers with the data and price that fit your trip.
24/7 support
Our support team is available 24/7, before and after you buy, for every eSIM you get from MobiMatter.
What our customers say
5.0
For our trip to China, South Korea, and Japan, my wife and I bought two 12GB data packages and used them without any problems. Their prices are much more reasonable compared to competitors; I definitely recommend them.
AAbdullah Gokhan Demir
Play Store5.0
I used it for the first time with my wife during our trip to Japan and Korea, and I didn't experience any connection problems. The internet was fast enough in both Japan and Korea, and I was satisfied with the app. I recommend it.
Translated from Turkish
DDinçer Altınok
Play Store5.0
We have been using MobiMatters for years now and we have always been fully satisfied about the offering, the service, the quality and the coverage / connectivity
RReggi55
App Store5.0
The best eSim provider in the world. In case you don't have experience and don't know how to start, they respond within just a few minutes via email. They are TOP
RRedzad Dikonja
Play Store5.0
Such a great app + the support is crazy, replies in MINUTES ! I had problem with installing esim, they replied in few minutes and helped me out. Looking forward to use only this app… cheap/support, everything is on point. Love it
MMalopeňazí
App Store5.0
I highly recommend Mobimatter for anyone looking for an eSIM. The app is very easy to use, offers affordable prices, and provides excellent data packages for travelers. The activation process is simple and quick, making it a hassle-free experience. I've had a great experience using it and would definitely suggest it to everyone who needs a reliable and cost-effective eSIM solution.
SSikandar Khan
Play Store5.0
I had a problem and they answered so early no matter the time and guide through step by step so this is my fav esim app now
GGonca021
App Store5.0
The help desk / support centre were excellent when my inexperience with esims was showing. They helped me through everything and the esim worked exceptionally well in my destinations. Great value too.
BBilly Cosgriff
Play Store5.0
Awesome service. I have traveled back-and-forth between the United States and the Philippines and this app has not let me down. I strongly suggest that you check your data roaming option so this way you don’t mess up what you need to do.
WWhatshisface913
App Store5.0
I bought the service for the second time for a trip to Turkey. I had some trouble finding the right settings on my iphone. Support helped out immediately and everything was working well when I arrived in Turkey.
AAlex_M01
App Store5.0
After so many full moons, I got something worth it. Thanks
BBayu wisnu
Play Store5.0
⭐⭐⭐⭐⭐ Excellent customer support! I had an issue with my eSIM connection, and the support team resolved it quickly and professionally. They were patient, responsive, and very helpful throughout the process. Everything is working perfectly now. Highly recommended. Thank you, MobiMatter!
AAli Ceceli
Play Store
South Korea eSIM guides
Sep 23, 2026 — 10 min read
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