How to Efficiently Use Data While Abroad with SKT’s Standard Plan + eSIM Combo

1. Keeping a Korean Line While Living Abroad

Many people who live abroad for an extended period still maintain their Korean phone numbers for banking, authentication, or emergency purposes. The SK Telecom (SKT) Standard Plan, priced at ₩12,100 per month, is a common choice for this. With a contract discount, the plan can go as low as ₩9,000/month. It’s a voice and SMS-only plan—no mobile data is included, and any internet usage requires separate purchases. This becomes inconvenient when returning to Korea and needing temporary mobile data.

 

2. The Data Dilemma with Voice-Only Plans

While the Standard Plan is perfect for keeping your line alive, it’s insufficient for today’s smartphone needs. From navigation apps and KakaoTalk to mobile banking and delivery services, most daily smartphone functions require a data connection. Relying on public Wi-Fi, separate data top-ups, or tethering while in Korea is often inconvenient and inefficient—especially during short stays or layovers.

 

3. The Smart Solution: Adding an eSIM for Flexible Data

The most efficient solution? Use eSIM alongside your physical SKT SIM.
With an eSIM (embedded SIM), you can keep your SKT number active while also activating a separate data plan using a QR code. Many platforms like Rokkebi, Airalo, and Trip.com offer affordable data-only eSIM plans—ranging from 3-day, 5GB packages to 30-day flexible options. You can buy and install an eSIM remotely, making it perfect for travelers or expats re-entering Korea.

For example: Purchase a 10GB for 10 days eSIM plan → scan the QR code on arrival → instantly connect to high-speed data without touching your SK SIM.

 

4. Minimal Cost, Maximum Connectivity – A Practical Strategy

This hybrid strategy is ideal for those who:

• Want to keep their Korean number active for banking or identity purposes
• Use data only during short visits to Korea
• Prefer not to pay for expensive roaming or large domestic data plans

By combining SKT’s low-cost Standard Plan with a short-term eSIM, you can enjoy the best of both worlds: reliable call/text reception and flexible, high-speed data whenever you need it. There’s no need to switch SIM cards or waste money on unnecessary charges—just scan a QR code, and you’re online.