South Korea eSIM with unlimited data: POVNOMAD vs Airalo vs Holafly

Last updated on 6 September 2026

POVNOMAD Unlimited Smart for South Korea costs €5.90 for 3 days and €29.90 for 30 days. Airalo’s unlimited plan costs €11.00 and €61.50, Holafly €11.90 and €68.90. Smart gives you 1 GB at full speed each day, then a steady 1 Mbit/s. Unlimited XL raises the daily allowance to 3 GB from €7.90.

The comparison at a glance

All prices as of 5 September 2026, collected from povnomad.com, airalo.com and esim.holafly.com (South Korea product pages, EUR). “—” means Airalo and Holafly list no price for 21 days. Fair use: POVNOMAD states both figures on the product page, the daily high-speed allowance (1 GB on Smart, 3 GB on XL) and the speed after that (a steady 1 Mbit/s). Airalo states its threshold of 3 GB per day and the drop to 1 Mbps on the South Korea product page itself, and caps full speed there at 20 Mbps. Holafly names neither a threshold nor a speed for South Korea. Prices are subject to change.

Unlimited XL works with the same daily threshold as Airalo, 3 GB at full speed, and costs less at every duration: €7.90 against €11.00 at 3 days, €31.90 against €43.50 at 15 days, €60.90 against €61.50 at 30 days.

One note on buying: purchases in the POVNOMAD app earn up to 10 percent of the amount paid as credits, redeemable on your next order. The web shop does not award credits. The prices in the table stay the same, the credits lower the bill on your next trip.

The network difference

Three operators run nationwide networks in South Korea: SK Telecom, KT and LG U+. The POVNOMAD eSIM for South Korea runs on a local 4G/5G network, and the product page names SK Telecom and LG U+ as examples. Airalo’s South Korea product page reads: “Operates on the SK network in South Korea.” Holafly names “SK Telecom, LGU+” (retrieved 5 September 2026). None of the three names KT.

South Korea’s ICT ministry MSIT reports that the three operators have built out their 5G networks across the country. For maps, translation and messengers around Seoul, Busan and Jeju, the network choice makes little difference. No provider promises a signal at a named spot.

Each provider defines “unlimited” its own way. POVNOMAD puts a number on both halves of the rule, 1 GB at full speed per day on Unlimited Smart and a steady 1 Mbit/s after that, with 3 GB on Unlimited XL. Airalo prints the rule for South Korea on the product page: “Full speed for the first 3 GB of data each day (up to 20 Mbps) — after that, lower speed (1 Mbps …)”. So full speed there stops at 20 Mbps. POVNOMAD names no such ceiling for South Korea. Holafly gives neither a threshold nor a speed for South Korea.

Next to the duration, the product page carries a second choice, the IP variant. Unlimited Smart and Unlimited XL run through the Singapore IP. Data packages come with the standard IP or with the Singapore IP for €0.60 to €2 more. The page makes no promises about individual services.

Map apps: Naver and Kakao instead of Google Maps

Google Maps shows places in South Korea, yet it will not calculate a door-to-door route. Korean mapping law bars the export of detailed geodata abroad. Travellers report installing Naver Map or Kakao Map instead, both with an English interface. Both pull maps and departure times from the network as you go, so without a data connection you stand at the subway exit with no directions.

Data packages instead of unlimited

Plenty of Korea trips work without unlimited data. Sit on the guesthouse Wi-Fi in the evening, and a fixed package costs you less.

Prices as of 5 September 2026 for the standard IP variant, povnomad.com/en/produkt/south-korea-esim/. Hotspot comes with every POVNOMAD eSIM for South Korea, and validity starts with the first connection to the network.

The daily rate on Unlimited Smart does not drop with every longer tier. Ten days cost €11.90, one euro more than seven days, or €1.19 a day. Fifteen days cost €18.90, or €1.26 a day, more than the tier below. Three weeks cost €23.90 and a full month €29.90, under a euro a day. The unlimited plans overview explains the tiers.

Which plan for which trip

Five to seven days in Seoul fit Unlimited Smart, €7.90 for 5 days or €10.90 for 7 days. Airalo charges €26.00 for 7 days, Holafly €25.50. You walk through Myeongdong with Naver Map open, call a taxi through Kakao T, point a translation app at the menu and send voice notes at night. A day like that stays under 1 GB, so you are online the whole time without paying for 3 GB that sit unused. Upload video daily or stream on the subway and you do use Airalo’s 3 GB.

A loop through Seoul, Busan and Jeju often runs 10 to 15 days. Ten days of Unlimited Smart cost €11.90, where Airalo charges €31.00. If you stream on the move or run a hotspot for a laptop, Unlimited XL gives you 3 GB a day at €31.90 for 15 days against Airalo’s €43.50. On the KTX to Busan navigation keeps running apart from a short drop in the tunnels, and once the high-speed allowance is gone, maps and messengers carry on at 1 Mbit/s. For a DMZ day trip, tour operators ask for your passport according to travel reports.

Many travellers pair South Korea with a stop in Japan, and one profile does not cover both countries. Japan has its own Japan eSIM with Unlimited Smart from €5.90, and provider prices for it sit in the Japan eSIM comparison. A data-only eSIM you buy online, while a Korean phone number needs your passport at a counter in the country.

Roaming from your home contract

South Korea sits outside EU roaming, so a European domestic allowance does not apply and your operator charges a separate add-on. Most sell a monthly world package with a few gigabytes, or day and week passes capped at a few hundred megabytes. Compare that against €10.90 for seven days of Unlimited Smart or €15.90 for 20 GB over 30 days.

Frequently asked questions

All prices as of 5 September 2026, sources: povnomad.com, airalo.com, esim.holafly.com. Prices are subject to change.