South Korea eSIM
Choose from 12 available byOne travel eSIM plans, with instant digital delivery and no physical SIM swap required.
- Instantdigital delivery, install everywhere
- 12 plansto choose from
- $4.00starting price
Choose your plan
- LTE
- Data only — no phone number
- Power up your data now
How much data do I need?
Tell us about your trip and we'll pick the right plan.
Where will my South Korea eSIM work?
Plans start from 1 GB for 7 Days.
Network
- KT
Average speeds
LTE
Where it works
-
South Korea
Is your phone eSIM ready?
Check your device before you buy — most phones from the last few years support eSIM.
Check CompatibilityNeed data for more than just South Korea?
Everything about your South Korea eSIM
Use a South Korea eSIM to stay connected
Staying connected makes every trip easier — live maps, ride-hailing, translation, mobile payments and sharing the moments as they happen.
A byOne South Korea eSIM installs in about 90 seconds and connects automatically when you land, so you skip the airport SIM queue and start browsing right away. Buy before you fly, top up any time, and reuse it on your next visit.
How much travel data do I need in South Korea?
How much data you'll need in South Korea depends on a few factors: the Wi-Fi situation where you're staying, and how much time you'll be spending online.
Will you be traveling around nearby areas or on day trips where there won't be reliable Wi-Fi?
The great thing about eSIM data is that you can start with a small package and easily add more if you need it.
Will I pay roaming charges with a South Korea eSIM?
Not a penny in roaming charges.
When you're using a South Korea eSIM for travel data, your device connects directly to a local network instead of roaming, giving you prepaid data to use during your trip.
South Korea eSIM questions
Common questions about coverage, activation, and data in South Korea.
How fast does my South Korea eSIM activate?
Most South Korea eSIMs activate within a couple of minutes of installing the profile. Some plans start counting validity from installation, others from first connection to a local network — check the plan details before you buy.
Can I use my South Korea eSIM alongside my regular SIM?
Yes, as long as your device supports dual SIM with eSIM. Keep your regular number for calls and texts, and use the byOne eSIM for data.
What happens if I use all my South Korea data before the plan expires?
You can top up with additional data at any time from your byOne account, or purchase a new plan for your remaining trip.
Does coverage in South Korea include rural or remote areas?
Coverage follows the partner network footprint shown on the plan, which is typically strongest in cities and major towns. Check the plan details for the specific network used.
What travelers say about South Korea eSIM
No reviews for South Korea yet — be the first to share your experience.
