JamboSim eSIM Data Plans for South Korea

JamboSim’s South Korea eSIM offers plans that are labeled “Unlimited, ” but these include a data cap of 3 GB per day and reduce speed to 1 000 kbps once the daily limit is reached; therefore they are not truly unlimited high‑speed data.

The provider instead offers fixed data packages such as 20 GB for 30 days, 50 GB for 90 days, and 100 GB for 180 days. These larger‑cap options are the practical alternatives for travelers who want substantial data without the daily cap and throttling.

JamboSim does not provide a South Korea eSIM that includes a local phone number or SMS capability. All South Korea eSIM options from JamboSim are data‑only; travelers can use VoIP applications such as WhatsApp, Telegram and iMessage over the data connection for calling and messaging.

JamboSim offers 12 single‑country data plans and 33 multi‑country plans that include coverage in South Korea. The single‑country plans range in price from $1.99 to $99.99 and provide data caps between 200 MB and 100 GB, while the multi‑country plans follow the same price and data ranges but allow use across several destinations, with the same 3‑ to 365‑day validity range. These plans also offer the option of daily data caps in 12 cases, and a fixed data cap in 33 cases, both with tethering allowed and a reduced speed cap of 1000 kbps.