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South Korea 5G eSIM | 3 – 30GB | Data-Only | 30 Days

(23 customer reviews)


Up to 30GB
4G/5G speed
30 Days
Data Only
Use within 90 days

For use in South Korea



What’s Included?

  • 3 – 30GB (Unlimited data at 384kbps)*
  • No daily limit
  • 4G/5G speed
  • 30 days of service from activation
  • For use in South Korea
  • Hotspot/Tethering enabled
  • How do eSIMs work? Check our eSIM setup guide
    • Purchase your eSIM plan, QR code will be sent instantly via email
    • Scan the QR code to add the eSIM to your eSIM compatible phone
    • Turn on data roaming to use the eSIM
  • eSIM must connect to supported network and be used within 90 days of purchase

Thing’s to know

  • The eSIM’s provider is CMHK 
  • Plan starts when eSIM connects to supported network
  • No ID registration needed
  • No calls or texts included (data-only eSIM)
  • Coverage on SK Telecom
  • Compatible with unlocked eSIM-enabled phones (with EID numbers)
  • Check data usage online

Important Notes

  • TikTok and ChatGPT will NOT work
  • Adding the eSIM outside the coverage country may result in a “failed activation,” which is normal. The eSIM will activate once you reach your destination.
  • Turn off the eSIM line and do not turn on data roaming until you reach your destination.
  • Haven’t received your eSIM? Check your junk mail or reach out to us
  • Check network coverage in your intended travel areas; Coverage issues are outside our control and we do not offer refunds

Troubleshooting Guide

eSIM not working? Don’t stress! Follow this guide to get you up and running.

  1. Disable VPN and any secondary SIM/eSIM lines (for dual SIM phones)
  2. Connect to Wi-Fi and disable airplane mode before scanning the eSIM
  3. Confirm mobile data is sourced from our eSIM (i.e. the correct eSIM profile is selected)
  4. Turn data roaming on (Android: select all network)
  5. Wait up to 10 minutes for activation to occur
  6. APN: cmhk | Username: [blank]  Password: [blank] (Android: select manually)
  7. Turn off automatic network selection and manually choose from the list below.
  8. Restart your phone and/or turn on and off airplane mode
  9. Still not working? Chat with us live, we’re here to help!

We are not affiliated with the network provider. Data allowance may change without notice; check our website for updates.

Network Operator(s) List

  • South Korea [SK Telecom]

*Updated product listing on 6 Jul 2024: changed provider from 3HK to CMHK and added 5G speed

List of eSIM Supported Handsets (not exhaustive)

Additional information


3GB, 5GB, 10GB, 15GB, 30GB





Reviews (23)

23 reviews for South Korea 5G eSIM | 3 – 30GB | Data-Only | 30 Days

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Based on 23 reviews
1-5 of 23 reviews
  1. SH

    I didn’t get stable internet connection. I ended up buying a prepaid Sim card in Korea.

    (0) (0)
  2. A
    (0) (0)
  3. C

    All good, no problem connecting and data flow was smooth.

    (0) (0)
  4. L
    (0) (0)
  5. HJ
    (0) (0)
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