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South Korea eSIM Plans
29 plans · from $5.08
South Korea has world-class 5G infrastructure. An eSIM activates instantly — no local registration required and no language barrier at a carrier store. Learn more about how eSIMs work →
→Read our South Korea eSIM guide — SKT vs KT, 5G coverage, Seoul subway, and K-travel data tipsChoose a data plan
1 GB
7 days· 0.2 GB per $1
$5.08
★ BEST VALUE
Unlimited
1 days· ∞ GB per $1
$5.52
2 GB
15 days· 0.3 GB per $1
$8.51
3 GB
30 days· 0.3 GB per $1
$11.50
Unlimited
3 days· ∞ GB per $1
$14.06
5 GB
30 days· 0.3 GB per $1
$17.25
Unlimited
5 days· ∞ GB per $1
$22.58
10 GB
30 days· 0.4 GB per $1
$26.85
Unlimited
7 days· ∞ GB per $1
$31.11
20 GB
30 days· 0.5 GB per $1
$43.90
Unlimited
10 days· ∞ GB per $1
$43.90
Unlimited
15 days· ∞ GB per $1
$65.24
50 GB
30 days· 0.6 GB per $1
$97.22
Unlimited
30 days· ∞ GB per $1
$129.21
100 GB
30 days· 0.7 GB per $1
$171.88
Frequently asked questions
Do I need a physical SIM card to use mobile data in South Korea?
No. A Siima eSIM gives you local data in South Korea without a physical card. Activate by scanning a QR code in your phone's settings — no shop visit, no passport check required.
How do I activate my eSIM when I arrive in South Korea?
Install the eSIM before you travel: open Settings → Cellular → Add eSIM and scan the QR code from your Siima confirmation email. Your data activates automatically when you first use mobile data in South Korea.
How much data do I need for a trip to South Korea?
For light use (maps, messaging, email) 1–3 GB per week is usually enough. For streaming or heavy navigation, choose a 5 GB+ plan. You can buy additional plans at any time if you run low.
Is eSIM cheaper than international roaming in South Korea?
Almost always yes. International roaming from most home carriers costs $10–15 per day. Siima eSIM plans for South Korea start from $5.08 and cover days or weeks of local data.