The best eSIM for South Korea in 2026.
All 8 South Korea plans we sell, ranked by what a GB and a day actually cost — the same prices checkout charges, no editorial favourites.
Our picks by trip type.
Each pick is the cheapest plan whose validity covers the whole trip — the exact quote the plan picker gives at checkout, hotspot included.
Our South Korea plans compared.
The full ladder, cheapest first — what a day and a GB actually cost on each plan, so the “best” pick is arithmetic, not opinion.
| Plan | Days | Price | Per day | Per GB | |
|---|---|---|---|---|---|
| 1GB | 7 | £3.04 | £0.43 | £3.04 | Cheapest |
| 3GB | 15 | £8.12 | £0.54 | £2.71 | |
| 5GB | 30 | £11.16 | £0.37 | £2.23 | Longest |
| 10GB | 30 | £19.29 | £0.64 | £1.93 | |
| Unlimited | 7 | £22.34 | £3.19 | — | |
| 20GB | 30 | £30.47 | £1.01 | £1.53 | Best value |
| Unlimited | 15 | £30.47 | £2.03 | — | |
| Unlimited | 30 | £45.71 | £1.53 | — |
Our read: Our lowest-priced South Korea plan is 1GB for 7 days at £3.04. Value pick: 20GB for 30 days at £30.47 — £1.53/GB, the lowest per-GB rate among our South Korea plans. Heavy users: unlimited runs £45.71 for 30 days (£1.53/day). Choose a plan →
How we rank: per-day = plan price ÷ validity days; per-GB = price ÷ GB (fixed bundles only). “Best value” is the lowest price per GB — or the lowest day rate where only unlimited plans are sold. Prices are the same ones our checkout charges.
How South Korea scores.
Every figure below is computed from the live catalogue — nothing is a reviewer's opinion. Benchmarks use the median (not the average) of every Asia destination we price, and a day rate is always plan price ÷ validity days.
Best bundle rate £1.53/GB vs the Asia median of £1.53/GB across the 30 Asiadestinations we sell single-country plans for.
Bundles up to 20GB · unlimited up to 30 days. From £3.04.
Connects to SK Telecom, KT, LG U+ — the eSIM picks the strongest signal automatically.
Longest validity sold for South Korea. Longer trips: stack a second plan — activation is instant.
