Asia
✓ Prices checked Sep 30, 2026
Best eSIM for South Korea in 2026
Every prepaid eSIM plan for South Korea from every major provider, ranked by the same formulas — $/GB, $/day and fair-use fine print decoded.
Quick verdict
Which South Korea eSIM is best for your trip?
The best South Korea eSIM depends on how you travel. Three picks computed from all 151 plans we track — prices checked Sep 30, 2026.
Roamic
South Korea eSIM 1GB / 7 Days — $1.00 ($0.14/day)
The full database
All South Korea eSIM plans compared
| Provider | Plan | Data | Validity | Price | $/day | $/GB | Network | Link |
|---|---|---|---|---|---|---|---|---|
Roami
Best value
|
20GB / 7 Days | 20GB | 7 days | $10.99 | $1.57 | $0.55 | — | View plan |
|
Roamic
|
South Korea eSIM 50GB / 30 Days | 50GB | 30 days | $29.00 | $0.97 | $0.58 | — | View plan |
|
Roami
|
30GB / 15 Days | 30GB | 15 days | $19.99 | $1.33 | $0.67 | — | View plan |
|
Roami
|
10GB / 3 Days | 10GB | 3 days | $6.99 | $2.33 | $0.70 | — | View plan |
|
Roami
|
10GB / 7 Days | 10GB | 7 days | $6.99 | $1.00 | $0.70 | — | View plan |
|
Roami
|
20GB / 15 Days | 20GB | 15 days | $13.99 | $0.93 | $0.70 | — | View plan |
|
Roamic
|
South Korea eSIM 10GB / 30 Days | 10GB | 30 days | $7.00 | $0.23 | $0.70 | — | View plan |
|
Roamic
|
South Korea eSIM 20GB / 30 Days | 20GB | 30 days | $14.00 | $0.47 | $0.70 | — | View plan |
Ubigi
|
20GB / 30 Days | 20GB | 30 days | $14.00 | $0.47 | $0.70 | — | View plan |
|
Roami
|
50GB / 30 Days | 50GB | 30 days | $37.99 | $1.27 | $0.76 | — | View plan |
|
Roami
|
10GB / 15 Days | 10GB | 15 days | $7.99 | $0.53 | $0.80 | — | View plan |
|
Roamic
|
South Korea eSIM 5GB / 21 Days | 5GB | 21 days | $4.00 | $0.19 | $0.80 | — | View plan |
|
Ubigi
Most data
|
60GB / 30 Days | 60GB | 30 days | $49.00 | $1.63 | $0.82 | — | View plan |
|
Ubigi
Most data
|
60GB / 365 Days | 60GB | 365 days | $49.00 | $0.13 | $0.82 | — | View plan |
|
Roami
|
30GB / 30 Days | 30GB | 30 days | $25.99 | $0.87 | $0.87 | — | View plan |
Airalo
|
'짱 Jjang - 50 GB | 50GB | 30 days | $49.00 | $1.63 | $0.98 | — | View plan |
|
Roami
|
3GB / 3 Days | 3GB | 3 days | $2.99 | $1.00 | $1.00 | — | View plan |
|
Roami
|
5GB / 3 Days | 5GB | 3 days | $4.99 | $1.66 | $1.00 | — | View plan |
|
Roami
|
5GB / 7 Days | 5GB | 7 days | $4.99 | $0.71 | $1.00 | — | View plan |
|
Roamic
Cheapest
|
South Korea eSIM 1GB / 7 Days | 1GB | 7 days | $1.00 | $0.14 | $1.00 | — | View plan |
|
Roamic
|
South Korea eSIM 3GB / 14 Days | 3GB | 14 days | $3.00 | $0.21 | $1.00 | — | View plan |
|
Ubigi
|
25GB / 30 Days | 25GB | 30 days | $25.00 | $0.83 | $1.00 | — | View plan |
|
Ubigi
|
25GB / 7 Days | 25GB | 7 days | $25.00 | $3.57 | $1.00 | — | View plan |
|
Roami
|
10GB / 30 Days | 10GB | 30 days | $10.99 | $0.37 | $1.10 | — | View plan |
Yesim
|
30GB / 30 Days | 30GB | 30 days | $33.11 | $1.10 | $1.10 | — | View plan |
|
Ubigi
|
30GB / 15 Days | 30GB | 15 days | $34.00 | $2.27 | $1.13 | — | View plan |
|
Roami
|
20GB / 30 Days | 20GB | 30 days | $22.99 | $0.77 | $1.15 | — | View plan |
|
Roami
|
5GB / 15 Days | 5GB | 15 days | $5.99 | $0.40 | $1.20 | — | View plan |
|
Ubigi
|
10GB / 7 Days | 10GB | 7 days | $12.00 | $1.71 | $1.20 | — | View plan |
|
Yesim
|
20GB / 30 Days | 20GB | 30 days | $26.42 | $0.88 | $1.32 | — | View plan |
|
Roami
|
3GB / 7 Days | 3GB | 7 days | $3.99 | $0.57 | $1.33 | — | View plan |
|
Roami
|
5GB / 30 Days | 5GB | 30 days | $6.99 | $0.23 | $1.40 | — | View plan |
|
Ubigi
|
10GB / 30 Days | 10GB | 30 days | $14.00 | $0.47 | $1.40 | — | View plan |
|
Airalo
|
'짱 Jjang - 20 GB | 20GB | 15 days | $29.00 | $1.93 | $1.45 | — | View plan |
Saily
|
South Korea 20GB 30 days | 20GB | 30 days | $29.99 | $1.00 | $1.50 | — | View plan |
|
Airalo
|
'짱 Jjang - 20 GB | 20GB | 30 days | $30.00 | $1.00 | $1.50 | — | View plan |
aloSIM
|
20GB / 30 Days | 20GB | 30 days | $32.00 | $1.07 | $1.60 | — | View plan |
|
Airalo
|
'짱 Jjang - 10 GB | 10GB | 7 days | $18.00 | $2.57 | $1.80 | — | View plan |
|
Yesim
|
10GB / 30 Days | 10GB | 30 days | $18.14 | $0.60 | $1.81 | — | View plan |
|
Airalo
|
'짱 Jjang - 10 GB | 10GB | 15 days | $18.50 | $1.23 | $1.85 | — | View plan |
|
Saily
|
South Korea 10GB 30 days | 10GB | 30 days | $18.99 | $0.63 | $1.90 | — | View plan |
|
Airalo
|
'짱 Jjang - 10 GB | 10GB | 30 days | $19.00 | $0.63 | $1.90 | — | View plan |
|
Roami
|
1GB / 3 Days | 1GB | 3 days | $1.99 | $0.66 | $1.99 | — | View plan |
|
Roami
|
3GB / 15 Days | 3GB | 15 days | $5.99 | $0.40 | $2.00 | — | View plan |
|
Airalo
|
'짱 Jjang - 5 GB | 5GB | 7 days | $10.00 | $1.43 | $2.00 | — | View plan |
|
Airalo
|
'짱 Jjang - 5 GB | 5GB | 15 days | $10.50 | $0.70 | $2.10 | — | View plan |
|
aloSIM
|
10GB / 30 Days | 10GB | 30 days | $21.00 | $0.70 | $2.10 | — | View plan |
|
Saily
|
South Korea 5GB 30 days | 5GB | 30 days | $10.99 | $0.37 | $2.20 | — | View plan |
|
Airalo
|
'짱 Jjang - 5 GB | 5GB | 30 days | $11.00 | $0.37 | $2.20 | — | View plan |
|
aloSIM
|
5GB / 30 Days | 5GB | 30 days | $11.00 | $0.37 | $2.20 | — | View plan |
|
Roami
|
3GB / 30 Days | 3GB | 30 days | $6.99 | $0.23 | $2.33 | — | View plan |
|
Ubigi
|
3GB / 7 Days | 3GB | 7 days | $7.00 | $1.00 | $2.33 | — | View plan |
|
Airalo
|
'짱 Jjang - 3 GB | 3GB | 3 days | $8.00 | $2.67 | $2.67 | — | View plan |
|
Yesim
|
1GB / 30 Days | 1GB | 30 days | $2.84 | $0.09 | $2.84 | — | View plan |
|
Roami
|
1GB / 7 Days | 1GB | 7 days | $2.99 | $0.43 | $2.99 | — | View plan |
|
Saily
|
South Korea 3GB 30 days | 3GB | 30 days | $8.99 | $0.30 | $3.00 | — | View plan |
|
Airalo
|
'짱 Jjang - 3 GB | 3GB | 7 days | $9.00 | $1.29 | $3.00 | — | View plan |
|
aloSIM
|
3GB / 30 Days | 3GB | 30 days | $9.00 | $0.30 | $3.00 | — | View plan |
|
Ubigi
|
1GB / 7 Days | 1GB | 7 days | $3.00 | $0.43 | $3.00 | — | View plan |
|
aloSIM
|
2GB / 15 Days | 2GB | 15 days | $7.00 | $0.47 | $3.50 | — | View plan |
|
Saily
|
South Korea 1GB 7 days | 1GB | 7 days | $3.99 | $0.57 | $3.99 | — | View plan |
|
Airalo
|
'짱 Jjang - 1 GB | 1GB | 3 days | $4.00 | $1.33 | $4.00 | — | View plan |
|
aloSIM
|
1GB / 7 Days | 1GB | 7 days | $4.50 | $0.64 | $4.50 | — | View plan |
|
Airalo
|
'짱 Jjang - Unlimited | Unlimited | 3 days | $12.00 | $4.00 | — | — | View plan |
|
Airalo
|
'짱 Jjang - Unlimited | Unlimited | 5 days | $20.00 | $4.00 | — | — | View plan |
|
Airalo
|
'짱 Jjang - Unlimited | Unlimited | 7 days | $29.00 | $4.14 | — | — | View plan |
|
Airalo
|
'짱 Jjang - Unlimited | Unlimited | 10 days | $35.00 | $3.50 | — | — | View plan |
|
Airalo
|
'짱 Jjang - Unlimited | Unlimited | 15 days | $49.00 | $3.27 | — | — | View plan |
|
Airalo
|
'짱 Jjang - Unlimited | Unlimited | 30 days | $69.00 | $2.30 | — | — | View plan |
|
aloSIM
|
Unlimited / 3 Days | Unlimited | 3 days | $12.50 | $4.17 | — | — | View plan |
|
aloSIM
|
Unlimited / 5 Days | Unlimited | 5 days | $20.50 | $4.10 | — | — | View plan |
|
aloSIM
|
Unlimited / 7 Days | Unlimited | 7 days | $29.50 | $4.21 | — | — | View plan |
|
aloSIM
|
Unlimited / 10 Days | Unlimited | 10 days | $35.00 | $3.50 | — | — | View plan |
|
aloSIM
|
Unlimited / 15 Days | Unlimited | 15 days | $49.00 | $3.27 | — | — | View plan |
|
aloSIM
|
Unlimited / 30 Days | Unlimited | 30 days | $72.50 | $2.42 | — | — | View plan |
Holafly
|
Unlimited / 3 Days | Unlimited | 3 days | $12.50 | $4.17 | — | — | View plan |
|
Holafly
|
Unlimited / 5 Days | Unlimited | 5 days | $20.50 | $4.10 | — | — | View plan |
|
Holafly
|
Unlimited / 7 Days | Unlimited | 7 days | $27.50 | $3.93 | — | — | View plan |
|
Holafly
|
Unlimited / 10 Days | Unlimited | 10 days | $36.50 | $3.65 | — | — | View plan |
|
Holafly
|
Unlimited / 15 Days | Unlimited | 15 days | $50.50 | $3.37 | — | — | View plan |
|
Holafly
|
Unlimited / 30 Days | Unlimited | 30 days | $73.90 | $2.46 | — | — | View plan |
|
Roami
|
Unlimited / 3 Days | Unlimited | 3 days | $8.99 | $3.00 | — | — | View plan |
|
Roami
|
Unlimited / 7 Days | Unlimited | 7 days | $24.99 | $3.57 | — | — | View plan |
|
Roami
|
Unlimited / 15 Days | Unlimited | 15 days | $31.99 | $2.13 | — | — | View plan |
|
Roami
|
Unlimited / 30 Days | Unlimited | 30 days | $61.99 | $2.07 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 1 Day | Unlimited | 1 days | $3.00 | $3.00 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 2 Days | Unlimited | 2 days | $5.00 | $2.50 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 3 Days | Unlimited | 3 days | $8.00 | $2.67 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 4 Days | Unlimited | 4 days | $10.00 | $2.50 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 5 Days | Unlimited | 5 days | $12.00 | $2.40 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 6 Days | Unlimited | 6 days | $15.00 | $2.50 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 7 Days | Unlimited | 7 days | $16.00 | $2.29 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 8 Days | Unlimited | 8 days | $18.00 | $2.25 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 9 Days | Unlimited | 9 days | $19.00 | $2.11 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 10 Days | Unlimited | 10 days | $21.00 | $2.10 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 11 Days | Unlimited | 11 days | $22.00 | $2.00 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 12 Days | Unlimited | 12 days | $24.00 | $2.00 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 13 Days | Unlimited | 13 days | $26.00 | $2.00 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 14 Days | Unlimited | 14 days | $27.00 | $1.93 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 15 Days | Unlimited | 15 days | $29.00 | $1.93 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 16 Days | Unlimited | 16 days | $30.00 | $1.88 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 17 Days | Unlimited | 17 days | $31.00 | $1.82 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 19 Days | Unlimited | 19 days | $32.00 | $1.68 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 18 Days | Unlimited | 18 days | $32.00 | $1.78 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 20 Days | Unlimited | 20 days | $34.00 | $1.70 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 22 Days | Unlimited | 22 days | $35.00 | $1.59 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 21 Days | Unlimited | 21 days | $35.00 | $1.67 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 23 Days | Unlimited | 23 days | $36.00 | $1.57 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 25 Days | Unlimited | 25 days | $37.00 | $1.48 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 24 Days | Unlimited | 24 days | $37.00 | $1.54 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 26 Days | Unlimited | 26 days | $38.00 | $1.46 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 28 Days | Unlimited | 28 days | $39.00 | $1.39 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 27 Days | Unlimited | 27 days | $39.00 | $1.44 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 29 Days | Unlimited | 29 days | $40.00 | $1.38 | — | — | View plan |
|
Roamic
|
South Korea eSIM Unlimited Data / 30 Days | Unlimited | 30 days | $41.00 | $1.37 | — | — | View plan |
|
Saily
|
South Korea UNLIMITED 5 days | Unlimited | 5 days | $18.99 | $3.80 | — | — | View plan |
|
Saily
|
South Korea UNLIMITED 10 days | Unlimited | 10 days | $34.99 | $3.50 | — | — | View plan |
|
Saily
|
South Korea UNLIMITED 15 days | Unlimited | 15 days | $48.99 | $3.27 | — | — | View plan |
|
Saily
|
South Korea UNLIMITED 20 days | Unlimited | 20 days | $59.99 | $3.00 | — | — | View plan |
|
Saily
|
South Korea UNLIMITED 25 days | Unlimited | 25 days | $65.99 | $2.64 | — | — | View plan |
|
Saily
|
South Korea UNLIMITED 30 days | Unlimited | 30 days | $71.99 | $2.40 | — | — | View plan |
|
Yesim
|
Unlimited / 1 Day | Unlimited | 1 days | $3.97 | $3.97 | — | — | View plan |
|
Yesim
|
Unlimited / 2 Days | Unlimited | 2 days | $7.94 | $3.97 | — | — | View plan |
|
Yesim
|
Unlimited / 3 Days | Unlimited | 3 days | $11.91 | $3.97 | — | — | View plan |
|
Yesim
|
Unlimited / 4 Days | Unlimited | 4 days | $15.88 | $3.97 | — | — | View plan |
|
Yesim
|
Unlimited / 5 Days | Unlimited | 5 days | $19.85 | $3.97 | — | — | View plan |
|
Yesim
|
Unlimited / 6 Days | Unlimited | 6 days | $23.82 | $3.97 | — | — | View plan |
|
Yesim
|
Unlimited / 7 Days | Unlimited | 7 days | $27.78 | $3.97 | — | — | View plan |
|
Yesim
|
Unlimited / 8 Days | Unlimited | 8 days | $29.84 | $3.73 | — | — | View plan |
|
Yesim
|
Unlimited / 9 Days | Unlimited | 9 days | $31.90 | $3.54 | — | — | View plan |
|
Yesim
|
Unlimited / 10 Days | Unlimited | 10 days | $33.95 | $3.40 | — | — | View plan |
|
Yesim
|
Unlimited / 11 Days | Unlimited | 11 days | $36.01 | $3.27 | — | — | View plan |
|
Yesim
|
Unlimited / 12 Days | Unlimited | 12 days | $38.06 | $3.17 | — | — | View plan |
|
Yesim
|
Unlimited / 13 Days | Unlimited | 13 days | $40.12 | $3.09 | — | — | View plan |
|
Yesim
|
Unlimited / 14 Days | Unlimited | 14 days | $42.18 | $3.01 | — | — | View plan |
|
Yesim
|
Unlimited / 15 Days | Unlimited | 15 days | $44.23 | $2.95 | — | — | View plan |
|
Yesim
|
Unlimited / 16 Days | Unlimited | 16 days | $45.59 | $2.85 | — | — | View plan |
|
Yesim
|
Unlimited / 17 Days | Unlimited | 17 days | $46.95 | $2.76 | — | — | View plan |
|
Yesim
|
Unlimited / 18 Days | Unlimited | 18 days | $48.31 | $2.68 | — | — | View plan |
|
Yesim
|
Unlimited / 19 Days | Unlimited | 19 days | $49.67 | $2.61 | — | — | View plan |
|
Yesim
|
Unlimited / 20 Days | Unlimited | 20 days | $51.03 | $2.55 | — | — | View plan |
|
Yesim
|
Unlimited / 21 Days | Unlimited | 21 days | $52.39 | $2.49 | — | — | View plan |
|
Yesim
|
Unlimited / 22 Days | Unlimited | 22 days | $53.75 | $2.44 | — | — | View plan |
|
Yesim
|
Unlimited / 23 Days | Unlimited | 23 days | $55.12 | $2.40 | — | — | View plan |
|
Yesim
|
Unlimited / 24 Days | Unlimited | 24 days | $56.48 | $2.35 | — | — | View plan |
|
Yesim
|
Unlimited / 25 Days | Unlimited | 25 days | $57.84 | $2.31 | — | — | View plan |
|
Yesim
|
Unlimited / 26 Days | Unlimited | 26 days | $59.20 | $2.28 | — | — | View plan |
|
Yesim
|
Unlimited / 27 Days | Unlimited | 27 days | $60.56 | $2.24 | — | — | View plan |
|
Yesim
|
Unlimited / 28 Days | Unlimited | 28 days | $61.92 | $2.21 | — | — | View plan |
|
Yesim
|
Unlimited / 29 Days | Unlimited | 29 days | $63.28 | $2.18 | — | — | View plan |
|
Yesim
|
Unlimited / 30 Days | Unlimited | 30 days | $64.64 | $2.15 | — | — | View plan |
Prices in USD as listed by each provider, excluding promo codes and taxes. Badges are literal sort positions, not editorial picks — see our methodology.
What the numbers mean
What South Korea eSIM prices reveal
Prices for South Korea cluster into two distinct camps. Metered plans — Roami down to $2.99 for 1GB — charge for a data bucket, while Holafly sells a single shape: unlimited data billed at roughly $3.92/day. On pure $/GB, Roami wins outright: 50GB / 30 Days works out to $0.78/GB, the best rate of the 51 plans we track.
The crossover point decides it. At $3.92/day, two weeks of Holafly runs $40+, while a 20GB bucket from the same table covers a heavy two-week trip for less. Light users — maps, messaging, the odd lookup — can stop at a 3-5GB bucket and stay in single digits. Rule of thumb for South Korea: under a week and Wi-Fi at the hotel, buy the smallest bucket; remote work or hotspot sharing pushes every metered plan toward the unlimited tier.
Network-wise, South Korea runs on SK Telecom, KT, LG U+ — coverage differences between them matter more than price differences between providers. Korean carrier apps often demand a local ARS verification. Check the fair-use column before buying any ‘unlimited’ label, and re-check this page before your trip: prices move.
Fine print decoded
Is unlimited eSIM data really unlimited in South Korea?
Every "unlimited" plan on this page, with its fair-use policy decoded:
| Provider | Plan | Price | $/day | Fair-use policy |
|---|---|---|---|---|
|
Roamic
|
South Korea eSIM Unlimited Data / 1 Day | $3.00 | $3.00 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 1 Day | $3.97 | $3.97 | No fair-use policy published — treat speed claims with caution |
|
Roamic
|
South Korea eSIM Unlimited Data / 2 Days | $5.00 | $2.50 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 2 Days | $7.94 | $3.97 | No fair-use policy published — treat speed claims with caution |
|
Roamic
|
South Korea eSIM Unlimited Data / 3 Days | $8.00 | $2.67 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Roami
|
Unlimited / 3 Days | $8.99 | $3.00 | No fair-use policy published — treat speed claims with caution |
|
Roamic
|
South Korea eSIM Unlimited Data / 4 Days | $10.00 | $2.50 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 3 Days | $11.91 | $3.97 | No fair-use policy published — treat speed claims with caution |
|
Airalo
|
'짱 Jjang - Unlimited | $12.00 | $4.00 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Roamic
|
South Korea eSIM Unlimited Data / 5 Days | $12.00 | $2.40 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
aloSIM
|
Unlimited / 3 Days | $12.50 | $4.17 | 3 GB per day at full speed, then ∞ at 1kbps |
|
Holafly
|
Unlimited / 3 Days | $12.50 | $4.17 | Always On backup plan: 1GB of data monthly to keep you connected no matter what. |
|
Roamic
|
South Korea eSIM Unlimited Data / 6 Days | $15.00 | $2.50 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 4 Days | $15.88 | $3.97 | No fair-use policy published — treat speed claims with caution |
|
Roamic
|
South Korea eSIM Unlimited Data / 7 Days | $16.00 | $2.29 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Roamic
|
South Korea eSIM Unlimited Data / 8 Days | $18.00 | $2.25 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Saily
|
South Korea UNLIMITED 5 days | $18.99 | $3.80 | 5 GB per day at full speed, then ∞ at 1kbps |
|
Roamic
|
South Korea eSIM Unlimited Data / 9 Days | $19.00 | $2.11 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Yesim
|
Unlimited / 5 Days | $19.85 | $3.97 | No fair-use policy published — treat speed claims with caution |
|
Airalo
|
'짱 Jjang - Unlimited | $20.00 | $4.00 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
aloSIM
|
Unlimited / 5 Days | $20.50 | $4.10 | 3 GB per day at full speed, then ∞ at 1kbps |
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Holafly
|
Unlimited / 5 Days | $20.50 | $4.10 | Always On backup plan: 1GB of data monthly to keep you connected no matter what. |
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Roamic
|
South Korea eSIM Unlimited Data / 10 Days | $21.00 | $2.10 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Roamic
|
South Korea eSIM Unlimited Data / 11 Days | $22.00 | $2.00 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Yesim
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Unlimited / 6 Days | $23.82 | $3.97 | No fair-use policy published — treat speed claims with caution |
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Roamic
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South Korea eSIM Unlimited Data / 12 Days | $24.00 | $2.00 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Roami
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Unlimited / 7 Days | $24.99 | $3.57 | No fair-use policy published — treat speed claims with caution |
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Roamic
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South Korea eSIM Unlimited Data / 13 Days | $26.00 | $2.00 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Roamic
|
South Korea eSIM Unlimited Data / 14 Days | $27.00 | $1.93 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Holafly
|
Unlimited / 7 Days | $27.50 | $3.93 | Always On backup plan: 1GB of data monthly to keep you connected no matter what. |
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Yesim
|
Unlimited / 7 Days | $27.78 | $3.97 | No fair-use policy published — treat speed claims with caution |
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Airalo
|
'짱 Jjang - Unlimited | $29.00 | $4.14 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Roamic
|
South Korea eSIM Unlimited Data / 15 Days | $29.00 | $1.93 | 3 GB per day at full speed, then ∞ at 1Mbps |
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aloSIM
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Unlimited / 7 Days | $29.50 | $4.21 | 3 GB per day at full speed, then ∞ at 1kbps |
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Yesim
|
Unlimited / 8 Days | $29.84 | $3.73 | No fair-use policy published — treat speed claims with caution |
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Roamic
|
South Korea eSIM Unlimited Data / 16 Days | $30.00 | $1.88 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Roamic
|
South Korea eSIM Unlimited Data / 17 Days | $31.00 | $1.82 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Yesim
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Unlimited / 9 Days | $31.90 | $3.54 | No fair-use policy published — treat speed claims with caution |
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Roami
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Unlimited / 15 Days | $31.99 | $2.13 | No fair-use policy published — treat speed claims with caution |
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Roamic
|
South Korea eSIM Unlimited Data / 19 Days | $32.00 | $1.68 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Roamic
|
South Korea eSIM Unlimited Data / 18 Days | $32.00 | $1.78 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Yesim
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Unlimited / 10 Days | $33.95 | $3.40 | No fair-use policy published — treat speed claims with caution |
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Roamic
|
South Korea eSIM Unlimited Data / 20 Days | $34.00 | $1.70 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Saily
|
South Korea UNLIMITED 10 days | $34.99 | $3.50 | 5 GB per day at full speed, then ∞ at 1kbps |
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Airalo
|
'짱 Jjang - Unlimited | $35.00 | $3.50 | 3 GB per day at full speed, then ∞ at 1Mbps |
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aloSIM
|
Unlimited / 10 Days | $35.00 | $3.50 | 3 GB per day at full speed, then ∞ at 1kbps |
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Roamic
|
South Korea eSIM Unlimited Data / 22 Days | $35.00 | $1.59 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Roamic
|
South Korea eSIM Unlimited Data / 21 Days | $35.00 | $1.67 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Roamic
|
South Korea eSIM Unlimited Data / 23 Days | $36.00 | $1.57 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Yesim
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Unlimited / 11 Days | $36.01 | $3.27 | No fair-use policy published — treat speed claims with caution |
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Holafly
|
Unlimited / 10 Days | $36.50 | $3.65 | Always On backup plan: 1GB of data monthly to keep you connected no matter what. |
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Roamic
|
South Korea eSIM Unlimited Data / 25 Days | $37.00 | $1.48 | 3 GB per day at full speed, then ∞ at 1Mbps |
|
Roamic
|
South Korea eSIM Unlimited Data / 24 Days | $37.00 | $1.54 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Roamic
|
South Korea eSIM Unlimited Data / 26 Days | $38.00 | $1.46 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Yesim
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Unlimited / 12 Days | $38.06 | $3.17 | No fair-use policy published — treat speed claims with caution |
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Roamic
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South Korea eSIM Unlimited Data / 28 Days | $39.00 | $1.39 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Roamic
|
South Korea eSIM Unlimited Data / 27 Days | $39.00 | $1.44 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Roamic
|
South Korea eSIM Unlimited Data / 29 Days | $40.00 | $1.38 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Yesim
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Unlimited / 13 Days | $40.12 | $3.09 | No fair-use policy published — treat speed claims with caution |
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Roamic
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South Korea eSIM Unlimited Data / 30 Days | $41.00 | $1.37 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Yesim
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Unlimited / 14 Days | $42.18 | $3.01 | No fair-use policy published — treat speed claims with caution |
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Yesim
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Unlimited / 15 Days | $44.23 | $2.95 | No fair-use policy published — treat speed claims with caution |
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Yesim
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Unlimited / 16 Days | $45.59 | $2.85 | No fair-use policy published — treat speed claims with caution |
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Yesim
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Unlimited / 17 Days | $46.95 | $2.76 | No fair-use policy published — treat speed claims with caution |
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Yesim
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Unlimited / 18 Days | $48.31 | $2.68 | No fair-use policy published — treat speed claims with caution |
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Saily
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South Korea UNLIMITED 15 days | $48.99 | $3.27 | 5 GB per day at full speed, then ∞ at 1kbps |
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Airalo
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'짱 Jjang - Unlimited | $49.00 | $3.27 | 3 GB per day at full speed, then ∞ at 1Mbps |
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aloSIM
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Unlimited / 15 Days | $49.00 | $3.27 | 3 GB per day at full speed, then ∞ at 1kbps |
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Yesim
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Unlimited / 19 Days | $49.67 | $2.61 | No fair-use policy published — treat speed claims with caution |
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Holafly
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Unlimited / 15 Days | $50.50 | $3.37 | Always On backup plan: 1GB of data monthly to keep you connected no matter what. |
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Yesim
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Unlimited / 20 Days | $51.03 | $2.55 | No fair-use policy published — treat speed claims with caution |
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Yesim
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Unlimited / 21 Days | $52.39 | $2.49 | No fair-use policy published — treat speed claims with caution |
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Yesim
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Unlimited / 22 Days | $53.75 | $2.44 | No fair-use policy published — treat speed claims with caution |
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Yesim
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Unlimited / 23 Days | $55.12 | $2.40 | No fair-use policy published — treat speed claims with caution |
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Yesim
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Unlimited / 24 Days | $56.48 | $2.35 | No fair-use policy published — treat speed claims with caution |
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Yesim
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Unlimited / 25 Days | $57.84 | $2.31 | No fair-use policy published — treat speed claims with caution |
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Yesim
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Unlimited / 26 Days | $59.20 | $2.28 | No fair-use policy published — treat speed claims with caution |
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Saily
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South Korea UNLIMITED 20 days | $59.99 | $3.00 | 5 GB per day at full speed, then ∞ at 1kbps |
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Yesim
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Unlimited / 27 Days | $60.56 | $2.24 | No fair-use policy published — treat speed claims with caution |
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Yesim
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Unlimited / 28 Days | $61.92 | $2.21 | No fair-use policy published — treat speed claims with caution |
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Roami
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Unlimited / 30 Days | $61.99 | $2.07 | No fair-use policy published — treat speed claims with caution |
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Yesim
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Unlimited / 29 Days | $63.28 | $2.18 | No fair-use policy published — treat speed claims with caution |
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Yesim
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Unlimited / 30 Days | $64.64 | $2.15 | No fair-use policy published — treat speed claims with caution |
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Saily
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South Korea UNLIMITED 25 days | $65.99 | $2.64 | 5 GB per day at full speed, then ∞ at 1kbps |
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Airalo
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'짱 Jjang - Unlimited | $69.00 | $2.30 | 3 GB per day at full speed, then ∞ at 1Mbps |
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Saily
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South Korea UNLIMITED 30 days | $71.99 | $2.40 | 5 GB per day at full speed, then ∞ at 1kbps |
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aloSIM
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Unlimited / 30 Days | $72.50 | $2.42 | 3 GB per day at full speed, then ∞ at 1kbps |
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Holafly
|
Unlimited / 30 Days | $73.90 | $2.46 | Always On backup plan: 1GB of data monthly to keep you connected no matter what. |
Decision guide
How to choose your South Korea eSIM
How much eSIM data do you need in South Korea?
- 1GBMaps, messaging and email for a city break — South Korea eSIM 1GB / 7 Days starts at $1.00.
- 5GBA normal week of maps, mail and social — cheapest 5GB+ bucket: South Korea eSIM 5GB / 21 Days at $4.00.
- 10GB+Streaming, hotspot sharing or a working trip — cheapest 10GB+ bucket: 10GB / 3 Days at $6.99.
- ∞Don't want to count? 88 unlimited plans cover South Korea — read the fair-use caps above before picking one.
Want exact numbers for your trip? Try the eSIM trip cost calculator.
How to install your South Korea eSIM
- 1Buy before you fly. Plans are delivered instantly — by email (marketplace providers) or in-app (app-based providers like Roami and Saily).
- 2Install on Wi-Fi. Scan the QR code or tap the in-app install button; the eSIM profile downloads in seconds.
- 3Land and it just works. The eSIM connects to its host network in South Korea automatically — keep data roaming ON for the eSIM line.
Works on eSIM-capable phones (iPhone XS and newer, most 2019+ Android flagships). Your physical SIM keeps working alongside it.
Matching plans to your trip
South Korea eSIM plans by trip length
The same database, sliced by how long you stay and how you travel. Every pick below is a computed sort position — validity must cover the whole stay, and data must match the use case.
3–5 days
long weekend or city break
South Korea eSIM 3GB / 14 Days
Roamic · 3GB / 14 days
$3.00
cheapest plan with at least 3GB and 5-day validity.
See the Roamic plan →7–10 days
the classic one-week trip
South Korea eSIM 5GB / 21 Days
Roamic · 5GB / 21 days
$4.00
cheapest 5GB+ bucket with validity ≥ 10 days.
See the Roamic plan →Two weeks
longer tours and multi-city
South Korea eSIM 10GB / 30 Days
Roamic · 10GB / 30 days
$7.00
cheapest 10GB+ bucket valid ≥ 15 days.
See the Roamic plan →30 days +
long stays and slow travel
South Korea eSIM 50GB / 30 Days
Roamic · 50GB / 30 days
$29.00
best $/GB among 20GB+ plans valid ≥ 30 days.
See the Roamic plan →Best South Korea eSIM by traveller type
Light user
maps, messaging, email
South Korea eSIM 1GB / 7 Days
Roamic · 1GB / 7 days
$1.00
lowest-price small bucket (1–5GB).
See the Roamic plan →Standard tourist
navigation plus social and browsing
20GB / 7 Days
Roami · 20GB / 7 days
$10.99
best $/GB in the 5GB+ class.
See the Roami plan →Streamer & hotspot
video, tethering, multiple devices
South Korea eSIM Unlimited Data / 30 Days
Roamic · unlimited / 30 days
$41.00
lowest cost per day without a GB counter.
See the Roamic plan →Remote worker
calls, cloud work, weeks on the road
South Korea eSIM 50GB / 30 Days
Roamic · 50GB / 30 days
$29.00
best $/GB among 30-day+ plans with 10GB or more.
See the Roamic plan →The lineup
Which eSIM providers cover South Korea
Airalo
since 2019
The original eSIM marketplace
- +Widest country coverage in the industry
- +Established trust and brand recognition
- +Regional plans (Asia, Europe) for multi-country trips
- –No longer the cheapest in most single countries
- –Smaller data allowances at entry price points
aloSIM
since 2021
Budget eSIM app from Canada's AffinityClick
- +Built by AffinityClick, an Ottawa telecom company
- +Cheap country packs across 175+ countries
- +Free eSIM app with flexible top-ups
- –Fewer unlimited options than rivals
- –Support is self-serve first
Holafly
since 2018
Unlimited data, pay by the day
- +Unlimited-data plans in 190+ destinations
- +One-plan-per-country simplicity
- +Hotspot sharing included
- –Flat daily pricing gets expensive on long trips
- –No budget tier - one plan shape only
Roami
since 2024
App-first travel eSIM with 24/7 activation
Promo code web20 — 20% off your first order (new users) · all deals
- +Aggressive pricing across Asia
- +No ID verification for travel plans
- +24/7 activation and human support
- –Younger brand with fewer third-party reviews
- –Deepest discounts concentrate on 3-30 day plans
Roamic
since 2021
European eSIM brand with unlimited options
- +Backed by Spain's Byte Travel since 2021
- +170+ countries and regions
- +Unlimited-data options in many destinations
- –Younger brand with a thinner review track record
- –Unlimited plans carry fair-use limits
Saily
since 2024
The no-logs eSIM from the NordVPN team
Promo code VEEPEE25 — 25% off Saily eSIMs · all deals
- +Competitive per-GB pricing
- +Built by the Nord Security team
- +Flexible in-app top-ups
- –Newer service with a shorter track record
- –Destination list still growing
Ubigi
since 2017
Global 4G/5G eSIM from Transatel, an NTT company
Promo code WELCOME10 — 10% off your first Ubigi data plan · all deals
- +Operated by Transatel (NTT Group) since the 2017 eSIM launch
- +Coverage in 200+ destinations
- +Connectivity heritage across cars and laptops
- –Account setup required before buying
- –Entry prices above the budget brands
Yesim
since 2019
Swiss-based eSIM with pay-as-you-go data
- +Founded 2019 in Switzerland
- +Pay-per-use international eSIM across 140+ countries
- +Self-service business platform for teams
- –Smaller brand recognition outside Europe
- –Pay-per-MB international plan takes reading to compare
Before you buy
Things to know before buying a South Korea eSIM
-
Korean carrier apps often demand a local ARS verification - travel eSIMs sidestep this with pre-registered profiles.
-
KT and SK both cap tourist plans at LTE despite the 5G rollout; check whether your plan lists 5G before paying extra.
Networks
Which networks do South Korea eSIMs run on
Every eSIM connects to a local carrier network. Coverage, speed and rural reach follow that host network — so knowing whose mast your plan uses matters more than the brand on the voucher.
SK Telecom
5GTypical 25–350 Mbps — enough for 4K streaming · video calls · hotspot work
Korea's largest and fastest — mid-band 5G basically everywhere, including the subway.
Where it wins: The largest network in Korea - fastest 5G and the best coverage.
Where it lags: Nothing major.
KT
5GTypical 25–300 Mbps — enough for 4K streaming · video calls · hotspot work
A close second with excellent Seoul metro coverage.
Where it wins: A close second with excellent Seoul and metro coverage.
Where it lags: Marginally thinner in remote areas.
LG U+
5GTypical 20–250 Mbps — enough for HD streaming · video calls · navigation
The smallest but still fast nationwide, and often the cheapest.
Where it wins: Good value and fast urban 5G.
Where it lags: A slightly smaller footprint.
South Korea's local carrier market
- SK Telecom
- KT
- LG U+
We're mapping which eSIM brands ride which of these networks — until then, pick by coverage where you're going.
Which national networks cover South Korea's major cities
All the carriers above serve these metros with full speed; the differences between them show up outside them — rural roads, mountain areas, islands and deep-indoor spots like basements and metro platforms.
Speeds are typical real-world downloads (4G floor to good 5G); actual speeds depend on device, plan and location. For context: Netflix 4K needs about 25 Mbps, HD about 5.
Independent measurements
Independent network data for South Korea
The network profiles above are ours. The findings below come from independent measurement firms — Opensignal crowdsources real-user readings, Ookla aggregates Speedtest samples — so you can cross-check whose masts actually perform before picking a plan that rides them.
Opensignal · December 2025
- SK Telecom won Download Speed outright with 189.3 Mbps, 35 Mbps ahead of KT (154.3), plus Coverage (9.4 out of 10) and 5G Coverage (7.3).
- KT won 5G Download Speed with 486.2 Mbps; LG U+ won 5G Availability with 90.3%.
Source: South Korea, December 2025, Mobile Network Experience Report, Opensignal.
Ookla · award report
South Korea ranked 7th worldwide for median mobile download speed in Ookla's Speedtest Global Index (June 2026).
Source: Ookla Speedtest report, 2026-06.
Ookla Speedtest Global Index
Ookla's index tracks South Korea's median mobile download, upload and latency month by month — the live picture of how the whole market's networks compare.
Open South Korea on the Global Index →Award findings are quoted from the named reports and link to the originals. Sources accessed October 2026; our own price and fair-use data follow the methodology.
FAQ
What should I know before buying a South Korea eSIM
What is the cheapest eSIM for South Korea?
Roami - the 1GB / 7 Days at $2.99 ($0.43/day) is the cheapest plan we track. That buys 1GB over 7 days: enough for maps and messaging if your hotel has Wi-Fi.
Is unlimited eSIM data in South Korea actually unlimited?
Not quite. All 10 'unlimited' plans here apply fair-use policies - the cheapest, Roami at $19.99 ($2.86/day), carries: Soft cap 2GB/day at full speed, then throttled. Treat them as big-but-capped plans and compare the caps.
Airalo or Holafly for South Korea?
Different animals. Airalo sells metered buckets - its best rate here is competitive per GB - while Holafly only sells unlimited-by-day ($3.92/day at its cheapest tier). Short light trip: Airalo-style buckets win. Heavy data or hotspot sharing: Holafly's flat rate caps your downside.
Do I need ID verification for a South Korea eSIM?
No. South Korea does not force ID checks on travel eSIMs - local SIM rules differ, but the plans on this page ship pre-registered.
Which networks do South Korea eSIMs use?
Plans on this page run on SK Telecom, KT, LG U+. Differences matter mostly outside the big cities - the network column in the main table shows which carrier each plan rides.
Can one eSIM cover South Korea and Japan?
Regional Asia/continental plans from Airalo and Nomad bundle South Korea with neighbors - usually worse $/GB than single-country plans, but cheaper than two separate eSIMs. For a two-country trip, compare one regional plan against two country-specific ones in the tables before buying.
Keep traveling
eSIM for your next destination
Travelers comparing South Korea eSIMs often price these destinations next — each card opens a live plan table, checked the same day as the one above.
New to eSIMs
First time using an eSIM?
The plans above assume the basics. If this is your first eSIM, these five short reads take you from what an eSIM is to a working data connection before you board.
eSIM explained
What the technology actually is, minus the marketing.
SIM card alternative
Where eSIMs win and where a physical SIM still makes sense.
activating an eSIM
The install walkthrough for every provider we track.
supported phones
The 30-second EID test plus every compatible phone we verified.
dual SIM phones
Keep your home number while travel data runs on eSIM.
Data you can check.
Prices on this page were last verified Sep 30, 2026. Full collection rules in our methodology; how we make money in our disclosure.