4 MIN DE LECTURE
Planning a week in South Korea? This guide helps you choose a data amount and get your phone ready before you fly. ChoEsim sells prepaid travel eSIM data plans issued by a third-party provider. The sizes and prices below come from the South Korea plans listed on 5 November 2026. They change, so the plan page is always the reference.
How much data for a week in South Korea
These are the fixed-data plans for South Korea that we saw in the catalogue on 5 November 2026. Each row shows the lowest price for that size and validity, so the plan you open may cost more. Prices are in US dollars, and the price at order time applies.
| Data | Validity | Price |
|---|---|---|
| 0.1 GB | 7 days | from $1.49 |
| 0.49 GB | 7 days | from $1.49 |
| 1 GB | 7 days | from $1.61 |
| 2 GB | 15 days | from $2.76 |
| 3 GB | 15 days | from $3.91 |
| 3 GB | 30 days | from $4.14 |
| 5 GB | 30 days | from $6.21 |
| 10 GB | 30 days | from $10.81 |
| 20 GB | 30 days | from $18.86 |
| 50 GB | 30 days | from $39.10 |
For a one-week trip, choose a plan whose validity covers the whole trip. Three sizes come with 7 days of validity (0.1 GB, 0.49 GB and 1 GB). Plans with 15 or 30 days also cover a week if you want a larger amount. The validities offered for fixed plans are 7, 15 and 30 days.
How far a size goes depends on how you use your phone, so treat the table as a starting point. On the South Korea page you can also try the data estimator. It is a rule of thumb, not a guarantee.
Choosing between a fixed-data plan and a per-day plan
A fixed-data plan gives you one data amount to use during its validity period. The table above lists these plans. A per-day plan is priced per day: you choose the number of days, and it carries data for each of those days. The plan page shows the total for your trip length and the details.
If you choose a fixed plan, pick a validity that is at least as long as your trip. If you choose a per-day plan, the number of days you choose is the number of days you pay for. We do not say that one type costs less than the other. The right choice depends on your trip and on how you use data. Also check when validity starts: it depends on the plan, and the plan page shows it. The South Korea page lets you browse and compare the plans.
Before you fly
Check your phone first. It must support eSIM and be carrier-unlocked. Dialling *#06# and looking for an EID helps identify eSIM capability, but it is not a guarantee. The device check lists examples of eSIM-capable phones; the manufacturer and your carrier have the final word.
After you order, the QR code and activation details are shown in My eSIMs and are emailed to you. Install like this:
- Connect to stable Wi-Fi. You can install before you go; check when validity starts for your plan first.
- Open your phone's eSIM settings and scan the QR code. On iPhone the path is Settings, Cellular, Add eSIM, Use QR Code. Menu names can vary by iOS version and by phone.
- If you cannot scan: manual installation uses the SM-DP+ address and the activation code.
The full steps are in the installation guide. Keep your QR code and activation details private and do not share them.
Our plans are data plans. Use internet apps for calls and messages; regular calls depend on your primary SIM and carrier.
What to check before you buy
- Your phone supports eSIM and is carrier-unlocked.
- The validity covers every day of your trip, and you know when validity starts for that plan.
- The data amount fits how you plan to use your phone.
- The plan page shows the details you rely on, including data, validity and price at order time.
- You understand the plan is data only.
Ready to compare? Open the South Korea page.