RoameSIM eSIM Data Plans for South Korea

RoameSIM does not provide a truly unlimited data eSIM for South Korea. The plans listed under the “Unlimited” name actually offer a 3GB/day cap; after that limit is reached the speed is throttled to 1000kbps. Examples include the South Korea – Unlimited – 3 days plan at $16.80 USD and the South Korea – Unlimited – 30 days plan at $96.60 USD. For travelers who need uninterrupted high‑speed access, RoameSIM sells fixed‑data plans such as the South Korea – 20GB – 30 days plan for $42.00 USD or the Asia – 100GB – 180 days plan for $124.60 USD, which can be more cost‑effective for heavy data users.

RoameSIM provides eSIM plans for South Korea that include a phone number and full SMS support. The plans range from 1GB to 20GB of high‑speed data, cost between $21.00 and $124.60, and have validities from 7 days up to 365 days. Each plan is assigned a US‑based phone number with the dialing code +1, allowing both inbound and outbound voice calls as well as inbound and outbound SMS. Travelers who need specific call or text functionality should confirm the details directly with RoameSIM before purchase.

RoameSIM lists 12 single‑country plans that cover South Korea and 34 multi‑country plans that include South Korea. Across these plans the price ranges from about $2.40 to $208.60, while the data cap spans from 200 MB up to 100 GB. Some plans are based on a fixed data amount that remains available for the entire validity period, whereas others are daily‑cap plans that reset the data allowance each day.