China mainland & Japan & South Korea eSIM
from
Travel eSIM for China mainland & Japan & South Korea with coverage in Shunyi, Incheon, Huinan, and more. Choose from 7 prepaid data plans from . Instant QR delivery, activate on arrival, and avoid roaming fees.
7 plans available
Tap any plan above to switch
How unlimited / day pass plans workLearn moreHide
"Unlimited" means a fixed high-speed allowance each day (e.g. 3GB/Day), not endless full-speed data. That amount resets every 24 hours. After you use it, you stay connected at reduced speeds under the fair-use policy.
Connected in under 2 minutes
No physical SIM card. No app downloads. Just an email and your phone.
Email arrives instantly
Your QR code and setup link land in your inbox the moment payment clears.
Scan the QR code
Open Settings → Add cellular plan → scan. Your phone does the rest.
Connect & explore
Activates the moment you land in China mainland & Japan & South Korea. Keep your home number for calls.
Live the moment you land in China mainland & Japan & South Korea
Activates when you connect on a supported network in China mainland & Japan & South Korea. Major hubs below are examples from public airport data — your plan coverage follows the network list in plan details.
Cities
Major airports
Beijing Capital Airport
New Incheon International Airport
Pudong International Airport
Singapore Changi Airport
Baiyun Airport
Narita International Airport
Helsinki Vantaa Airport
OR Tambo International Airport
Coverage networks
China mainland & Japan & South Korea eSIM networks
Depending on the plan, China mainland & Japan & South Korea eSIMs connect through partners such as 3G/4G/5G, China Unicom, KDDI/au, SKTelecom. Supported speeds include 5G — confirm exact partners on the plan you buy.
- 3G/4G/5G
- China Unicom
- KDDI/au
- SKTelecom
- 5G
Is your phone eSIM-ready?
Most phones released after 2018 support eSIM. Check before purchasing — it takes 5 seconds.
Check DeviceSee what travelers say
Read verified customer reviews on our reviews page — real feedback from travelers who used iwantesim.
China mainland & Japan & South Korea connectivity guides
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China mainland & Japan & South Korea eSIM questions
iwantesim China mainland & Japan & South Korea eSIM plans start from $4.44 across 7 plan options. Prices update with the live catalog on this page.
Most phones released after 2018 are eSIM-compatible — iPhone XS and newer, Samsung Galaxy S20 and newer, Google Pixel 3 and newer. Check our compatibility list to confirm before purchasing.
Validity starts the moment you connect to a supported network in China mainland & Japan & South Korea, not when you purchase. Buy ahead of time without worry.
Hotspot is not indicated for this plan. Choose another plan or contact support if you need tethering.
You can top up directly through our portal at any time. No need to buy a new plan.
Yes. eSIM-compatible phones support dual SIM. Keep your home number for calls and texts while using the eSIM for data abroad.
Depending on the plan, China mainland & Japan & South Korea eSIMs often connect through partners such as 3G/4G/5G, China Unicom, KDDI/au. Exact networks vary by plan — check plan details before you buy.
For most travelers, the best China mainland & Japan & South Korea eSIM is a prepaid plan that matches your trip length and data use — not an expensive unlimited day-pass you will not finish. iwantesim plans start from $4.44 with instant QR delivery. Compare live options on this page, or see how we differ from Airalo, Holafly, and Nomad.
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