BlueSky eSIM eSIM Data Plans for South Korea

BlueSky eSIM does not provide a truly unlimited data eSIM for South Korea. The plans that include “Unlimited” in their name actually offer 3GB of high‑speed data per day, after which the speed is throttled to 1000kbps.

Instead, BlueSky eSIM sells fixed data plans that give a set amount of high‑speed data. For example, a 20GB data plan with a 30‑day validity or a 50GB plan usable for 90 days are available. These fixed plans can be more cost‑effective for most travelers, unless a user expects to exceed the daily 3GB limit and requires continuous high‑speed service.

BlueSky eSIM does not provide plans that include a local phone number or SMS capability for South Korea. Travelers who need a phone number and SMS will find that BlueSky offers only data‑only eSIM options for this destination. However, common VoIP services such as WhatsApp, Telegram, and iMessage can usually be used over the data connection for voice and messaging, though some destinations may block or restrict certain apps and users should verify access before purchasing.

BlueSky eSIM offers 11 single‑country plans and 29 multi‑country plans for South Korea, giving travelers a total of 40 different options. The plans span a price range from $1.52 to $100.15 USD and data caps between 200 MB and 100 GB. Among these, some plans use a daily data cap (10 plans) that limits usage each day, while others employ a fixed data cap (30 plans) that adds up over the entire validity period.