JamboSim eSIM South Korea 2026: Cheap Data Plans & Prices

The cheapest JamboSim eSIM for South Korea costs $1.99 and gives you 300 MB for 3 days. It's the global eSIM, which also works in other countries. We recheck prices daily, so this price is up to date. You can buy it on the official JamboSim site.

Yes, JamboSim works in South Korea on its South Korea-only plans and on its regional and global eSIMs. If your eSIM is installed but won't connect after you land, open your phone's settings and turn on data roaming for it. Your home SIM can stay as it is.

For South Korea alone, these are JamboSim's lowest prices by trip length:

• 7 days: $2.99 for 1 GB
• 15 days: $3.99 for 2 GB
• 30 days: $4.99 for 3 GB

Yes, JamboSim has 6 unlimited plans for South Korea, ranging from $7.99 for 3 days to $40.99 for 30 days. A week without a data cap costs $12.99. You get up to 3 GB a day at full speed, then around 1 Mbps until midnight local time.

JamboSim is an eSIM store for travelers, with plans covering 204 destinations. On Trustpilot, 32 people have rated it 4.0 out of 5. If you want prices for other countries and the full verdict, read the JamboSim eSIM review.

With JamboSim, 1 GB in South Korea can cost as little as $0.55 on the regional eSIM, which has 20 GB for 30 days. On a South Korea-only plan, the lowest rate is $0.75 per GB, with 20 GB for 30 days.

Yes, every JamboSim plan, unlimited ones included, lets you share data through a personal hotspot with no restrictions.

No, most JamboSim plans for South Korea are data only, so your home number stays on your main SIM. JamboSim's Global+ plans also work in South Korea and come with a US or UK phone number, minutes and texts. You can still call and message people through WhatsApp or other apps.

Yes, you can buy it weeks ahead and install it at home. The days start only when your phone first connects to a network in South Korea, not when you buy or install it.

Yes, where the carrier supports it, you can top up in the JamboSim app or on the website under My eSIMs. A top-up doesn't add to the days you have left: it starts its own days when it's activated.

Yes, JamboSim has 22 regional plans that cover South Korea and other countries, plus 18 global plans. These keep you online as you cross borders. Even for South Korea alone, the regional plan can cost less: 10 GB for 30 days is $7.99 on it and $9.99 on the South Korea eSIM.