JamboSim eSIM Data Plans for South Korea

JamboSim does not provide a truly unlimited data eSIM for South Korea. The plans that are labeled “Unlimited” actually give 3GB per day; once that daily quota is used the speed drops to 1000kbps.

For travelers who need more data without speed throttling, JamboSim offers fixed‑data options such as 20GB for 30 days, 50GB for 90 days and 100GB for 180 days. These plans give a larger total data allowance and can be more economical for heavy data users who are not comfortable with the daily cap and subsequent speed reduction.

Yes, JamboSim offers eSIM plans for South Korea that include a phone number and the ability to send SMS. These Global+ plans cover South Korea and 164 other countries and are priced between $11.99 and $105.99, with validity ranging from 7 days up to 365 days. The phone numbers carry the dialing code +1, indicating they are not local Korean numbers; they support outbound voice calls only and outbound SMS, but not inbound calls or SMS. Users should verify the exact features with JamboSim before purchasing.

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.