Asia
Prices checked Sep 30, 2026
Yesim South Korea eSIM Plans & Prices (2026)
Yesim's complete South Korea lineup — 34 plans, benchmarked against all 10 providers and 185 plans we track for this country.
Prices shown are Yesim's own list prices as checked on Sep 30, 2026 and can change at any time — confirm the current figure on Yesim's website before you buy.
Yesim promo code
20% off Yesim eSIM plans — code
DREWDEAL
No expiry published. Applies at Yesim checkout on top of the prices below.
The verdict, computed
Is Yesim the right eSIM for South Korea
Yesim's best rate in South Korea is $1.10/GB; the country benchmark is $0.55/GB among the 10 providers we track. Entry price is $2.84 against the country floor of $1.00. The full ranking context lives in the all-provider South Korea comparison.
Yesim in South Korea
All 34 Yesim South Korea plans
34 plans · 30 trip lengths · 1 to 30 days
| Plan | Data | Validity | Price | $/day | $/GB | Link |
|---|---|---|---|---|---|---|
| 30GB / 30 Days | 30GB | 30 days | $33.11 | $1.10 | $1.10 | View plan |
| 20GB / 30 Days | 20GB | 30 days | $26.42 | $0.88 | $1.32 | View plan |
| 10GB / 30 Days | 10GB | 30 days | $18.14 | $0.60 | $1.81 | View plan |
| 1GB / 30 Days | 1GB | 30 days | $2.84 | $0.09 | $2.84 | View plan |
| Unlimited / 1 Day | Unlimited | 1 days | $3.97 | $3.97 | — | View plan |
| Unlimited / 2 Days | Unlimited | 2 days | $7.94 | $3.97 | — | View plan |
| Unlimited / 3 Days | Unlimited | 3 days | $11.91 | $3.97 | — | View plan |
| Unlimited / 4 Days | Unlimited | 4 days | $15.88 | $3.97 | — | View plan |
| Unlimited / 5 Days | Unlimited | 5 days | $19.85 | $3.97 | — | View plan |
| Unlimited / 6 Days | Unlimited | 6 days | $23.82 | $3.97 | — | View plan |
| Unlimited / 7 Days | Unlimited | 7 days | $27.78 | $3.97 | — | View plan |
| Unlimited / 8 Days | Unlimited | 8 days | $29.84 | $3.73 | — | View plan |
| Unlimited / 9 Days | Unlimited | 9 days | $31.90 | $3.54 | — | View plan |
| Unlimited / 10 Days | Unlimited | 10 days | $33.95 | $3.40 | — | View plan |
| Unlimited / 11 Days | Unlimited | 11 days | $36.01 | $3.27 | — | View plan |
| Unlimited / 12 Days | Unlimited | 12 days | $38.06 | $3.17 | — | View plan |
| Unlimited / 13 Days | Unlimited | 13 days | $40.12 | $3.09 | — | View plan |
| Unlimited / 14 Days | Unlimited | 14 days | $42.18 | $3.01 | — | View plan |
| Unlimited / 15 Days | Unlimited | 15 days | $44.23 | $2.95 | — | View plan |
| Unlimited / 16 Days | Unlimited | 16 days | $45.59 | $2.85 | — | View plan |
| Unlimited / 17 Days | Unlimited | 17 days | $46.95 | $2.76 | — | View plan |
| Unlimited / 18 Days | Unlimited | 18 days | $48.31 | $2.68 | — | View plan |
| Unlimited / 19 Days | Unlimited | 19 days | $49.67 | $2.61 | — | View plan |
| Unlimited / 20 Days | Unlimited | 20 days | $51.03 | $2.55 | — | View plan |
| Unlimited / 21 Days | Unlimited | 21 days | $52.39 | $2.49 | — | View plan |
| Unlimited / 22 Days | Unlimited | 22 days | $53.75 | $2.44 | — | View plan |
| Unlimited / 23 Days | Unlimited | 23 days | $55.12 | $2.40 | — | View plan |
| Unlimited / 24 Days | Unlimited | 24 days | $56.48 | $2.35 | — | View plan |
| Unlimited / 25 Days | Unlimited | 25 days | $57.84 | $2.31 | — | View plan |
| Unlimited / 26 Days | Unlimited | 26 days | $59.20 | $2.28 | — | View plan |
| Unlimited / 27 Days | Unlimited | 27 days | $60.56 | $2.24 | — | View plan |
| Unlimited / 28 Days | Unlimited | 28 days | $61.92 | $2.21 | — | View plan |
| Unlimited / 29 Days | Unlimited | 29 days | $63.28 | $2.18 | — | View plan |
| Unlimited / 30 Days | Unlimited | 30 days | $64.64 | $2.15 | — | View plan |
Prices in USD as listed by Yesim, excluding promo codes and taxes. Badges compare against all 185 South Korea eSIM plans we track — see our methodology. Last checked Sep 30, 2026.
Beyond the price tag
Yesim South Korea eSIM hotspot 5G and fair-use rules
Quoted from Yesim's own published policy rather than paraphrased — these are the terms that decide whether a plan for South Korea survives a real trip.
Hotspot and tethering
AllowedFrom the plan allowance
Hotspot use is permitted and normally drawn from the plan's own data pool rather than a separate tethering allowance.
Speed and 5G
5G available20–350 Mbps
Typical real-world download on the fastest host network, SK Telecom. Actual speed depends on which mast your phone picks and how busy it is.
Fair-use threshold
500 MB - 2 GB/day, stated before purchase
Drops to Reduced speed until the next cycle
Yesim puts its daily full-speed allowance on the plan page before you buy, which is more than most rivals do. Thresholds sit between 500 MB and 2 GB/day depending on destination, and its metered plans are not throttled.
Top-ups
AvailableTop-ups are handled in the Yesim app.
Fine print decoded
Is Yesim unlimited data in South Korea really unlimited
| Plan | Price | $/day | Fair-use policy |
|---|---|---|---|
| Unlimited / 1 Day | $3.97 | $3.97 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 2 Days | $7.94 | $3.97 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 3 Days | $11.91 | $3.97 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 4 Days | $15.88 | $3.97 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 5 Days | $19.85 | $3.97 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 6 Days | $23.82 | $3.97 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 7 Days | $27.78 | $3.97 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 8 Days | $29.84 | $3.73 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 9 Days | $31.90 | $3.54 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 10 Days | $33.95 | $3.40 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 11 Days | $36.01 | $3.27 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 12 Days | $38.06 | $3.17 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 13 Days | $40.12 | $3.09 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 14 Days | $42.18 | $3.01 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 15 Days | $44.23 | $2.95 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 16 Days | $45.59 | $2.85 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 17 Days | $46.95 | $2.76 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 18 Days | $48.31 | $2.68 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 19 Days | $49.67 | $2.61 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 20 Days | $51.03 | $2.55 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 21 Days | $52.39 | $2.49 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 22 Days | $53.75 | $2.44 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 23 Days | $55.12 | $2.40 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 24 Days | $56.48 | $2.35 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 25 Days | $57.84 | $2.31 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 26 Days | $59.20 | $2.28 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 27 Days | $60.56 | $2.24 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 28 Days | $61.92 | $2.21 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 29 Days | $63.28 | $2.18 | No fair-use policy published — treat speed claims with caution |
| Unlimited / 30 Days | $64.64 | $2.15 | No fair-use policy published — treat speed claims with caution |
The masts behind the plan
Which network does Yesim ride in South Korea
Yesim owns no towers in South Korea. This plan connects to the local host carriers KT, LG U+, SK Telecom — so coverage, speed and rural reach follow those masts rather than the brand on the voucher.
SK Telecom
5G25–350 Mbps
Korea's largest and fastest — mid-band 5G basically everywhere, including the subway.
LG U+
5G20–250 Mbps
The smallest but still fast nationwide, and often the cheapest.
Network-by-network breakdown, including which carriers every rival rides and how the two testers rank them: South Korea carrier breakdown →
Typical speeds are our editors' reads of each operator's own coverage data. The independent national benchmark is Ookla's Speedtest Global Index for South Korea.
Before you buy
Things to know about South Korea before you pick a plan
Country-level facts, not brand claims — they apply to any eSIM you buy for South Korea, Yesim's included.
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Korean carrier apps often demand a local ARS verification - travel eSIMs sidestep this with pre-registered profiles.
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KT and SK both cap tourist plans at LTE despite the 5G rollout; check whether your plan lists 5G before paying extra.
Price by trip length
What Yesim costs by trip length in South Korea
The same trip priced two ways — Yesim's own cheapest plan that stays valid for the whole stay, against the cheapest rival plan covering the same days in South Korea.
| Trip length | Yesim cheapest | Cheapest rival in South Korea | cheaper |
|---|---|---|---|
| 3 days | $2.84 30 days · 1GB | $1.00 7 days · 1GB · Roamic | Roamic cheaper |
| 5 days | $2.84 30 days · 1GB | $1.00 7 days · 1GB · Roamic | Roamic cheaper |
| 7 days | $2.84 30 days · 1GB | $1.00 7 days · 1GB · Roamic | Roamic cheaper |
| 10 days | $2.84 30 days · 1GB | $3.00 14 days · 3GB · Roamic | Yesim cheaper |
| 15 days | $2.84 30 days · 1GB | $4.00 21 days · 5GB · Roamic | Yesim cheaper |
| 30 days | $2.84 30 days · 1GB | $6.99 30 days · 3GB · Roami | Yesim cheaper |
Pick your trip length and this re-reads the plan table above on the spot — the cheapest plan whose validity still covers the whole trip, against the cheapest rival in the same country.
Price it for your own dates
Yesim cheapest plan that covers the trip
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Cheapest rival —
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Only plans whose validity covers the whole trip are counted here, so a 30-day trip is priced with a 30-day plan rather than a 5-day one stacked up. Each pick shows its data allowance next to the price — a 500MB trial pack undercuts a 5GB plan for a reason.
One column per brand, cheapest plan that covers the whole trip. Rivals are the other providers we track in South Korea.
Need an exact number for your own dates? Run the trip cost calculator.
Who it fits
Should you buy Yesim for South Korea
Buy it if
- +You would rather size your own data — 34 plans here, from $2.84.
- +You are travelling for 30 days or more — 1GB / 30 Days covers it for $2.84.
- +You are on a short break — Unlimited / 1 Day runs 1 days for $3.97.
- +You are staying 10 days or more — that is where it first undercuts the cheapest metered plan in South Korea
Look elsewhere if
- –You need a local phone number — these are data-only plans.
- –Cheapest headline price is all that matters — Roamic's smallest plan in South Korea starts at $1.00, and that buys 1GB.
Honest trade-offs
Where Yesim wins and loses in South Korea
Strengths
- +Unlimited data from $2.15 a day
- +Its daily rate falls from $3.97 on the 1-day plan to $0.09 on the 30-day plan
- +5G on all 3 host networks in South Korea
- +One purchase covers trips from 1 to 30 days
- +From 10 days up it undercuts the cheapest metered plan in South Korea
- +Hotspot and tethering allowed — From the plan allowance
Watch out for
- –A 30-day unlimited plan costs $41.00 from Roamic against $64.64 here
- –Fair-use throttling starts at about 500 MB a day, then speeds drop to Reduced speed until the next cycle
- –Data-only plans with no local phone number
Brand history and track record — Yesim
The other side by side
Yesim vs the other providers in South Korea
Airalo
from $4.00
Airalo ranks 6 of 10 on South Korea cost per gigabyte — its cheapest plan is 1GB.
Pricier entry by $1.16
See all Airalo plans →
aloSIM
from $4.50
On cost per gigabyte, aloSIM sits 9 of 10 in South Korea, entering with 1GB.
Pricier entry by $1.66
See all aloSIM plans →
Holafly
from $12.50
Holafly sells unlimited South Korea plans only — there is no $/GB figure to rank it on.
Pricier entry by $9.66
See all Holafly plans →
Jetpac
from $6.50
Jetpac ranks 5 of 10 on South Korea cost per gigabyte — its cheapest plan is 3GB.
Pricier entry by $3.66
See all Jetpac plans →
Nomad
from $4.00
On cost per gigabyte, Nomad sits 4 of 10 in South Korea, entering with 1GB.
Pricier entry by $1.16
See all Nomad plans →
Roami
from $1.99
Roami's South Korea entry plan is 1GB, which puts it 1 of 10 on cost per gigabyte.
Cheaper entry by $0.85
See all Roami plans →
Roamic
from $1.00
Roamic ranks 2 of 10 on South Korea cost per gigabyte — its cheapest plan is 1GB.
Cheaper entry by $1.84
See all Roamic plans →
Saily
from $3.99
On cost per gigabyte, Saily sits 8 of 10 in South Korea, entering with 1GB.
Pricier entry by $1.15
See all Saily plans →
Ubigi
from $3.00
Ubigi's South Korea entry plan is 1GB, which puts it 3 of 10 on cost per gigabyte.
Pricier entry by $0.16
See all Ubigi plans →
FAQ
Yesim South Korea eSIM questions
How much does Yesim charge for South Korea?
Yesim sells 34 plans for South Korea, from $2.84. Its best rate is $1.10/GB, drawn from the 10 provider price sheets we track for this destination. All prices are in USD as listed by Yesim and exclude promo codes.
Is Yesim unlimited data in South Korea really unlimited?
Uncapped, but not unthrottled: Yesim's South Korea unlimited plans run on a published fair-use rule, and what we recorded from Yesim's own documentation is 500 MB - 2 GB/day, stated before purchase. Past that point the connection slows instead of stopping, so the promise is about data volume rather than speed — see the fair-use table above for which tiers carry the rule and the policy cards for the quoted source. Maps, chat and some video rarely reach the threshold; a laptop on hotspot usually does.
Can I share my Yesim South Korea eSIM with a laptop?
Tethering is governed by Yesim's own rule rather than by the country. What we recorded from Yesim's documentation for South Korea plans is From the plan allowance. That is the publisher's wording, not our paraphrase — the full quote sits in the policy cards above. If you work from a laptop for hours a day, treat this line as the deciding factor between Yesim and a metered alternative, because hotspot traffic drains the same allowance as the phone itself.
Which network does Yesim use in South Korea?
Yesim owns no towers in South Korea, so your data rides the local host carriers — KT, LG U+, SK Telecom. The fastest of those sustains roughly 350 Mbps, and every one of the 185 South Korea plans we track connects to the same local networks.
Is Yesim or Roamic the better South Korea eSIM?
Yesim's cheapest plan here is $2.84; Roamic's is $1.00, though that entry price buys 1GB. The full ranking with every plan — allowance and $/GB side by side — sits in the South Korea eSIM comparison.
Does Yesim have good reviews for South Korea?
We publish no star rating, and that is deliberate: Trustpilot runs separate regional storefronts, so the same brand holds several scores at once, and quoting one of them as the rating would mislead. The reviews themselves are at <a href="https://www.trustpilot.com/review/yesim.app" rel="nofollow noopener" target="_blank">Yesim on Trustpilot</a>. What we verify instead is measured on this page — 34 Yesim plans for South Korea starting at $2.84.
Does Yesim work in South Korea?
Yes. Yesim owns no towers in South Korea, so your plan rides the local host networks — KT, LG U+, SK Telecom — and every one of the 185 South Korea plans we track connects to that same set. Installs that fail are almost never a coverage problem. They come down to three causes: the handset is still carrier-locked, the eSIM line's data roaming is switched off, or the phone stays on the old line for mobile data after the profile installs. All three are fixable at home, which is why installing on your own Wi-Fi beats doing it at the airport. Yesim sells 34 packages here from $2.84, so the host network is not what separates it from its rivals.
How do I activate my Yesim eSIM for South Korea?
Install it while you still have home Wi-Fi: Yesim issues either a QR code or an in-app profile, and the install itself takes minutes. Leave the line switched off until you land if you want the validity window to start on arrival, and turn data roaming on for that line. On this page Yesim sells 34 separate South Korea packages, from $2.84 each, so match one to your trip length rather than planning to top up abroad. The generic walkthrough is in our eSIM installation guide.
See the whole South Korea picture
Yesim's best $/GB in South Korea next to the other 10 providers we track — the full table with all 185 plans, badges and fair-use notes lives on the South Korea eSIM comparison. Prices verified Sep 30, 2026.