Travelling to China mainland & Japan & South Korea ? With an esimzu eSIM you get instant mobile data with no roaming fees, from €3,99.
| Data | Validity | Price |
|---|---|---|
| 1 GB | 7 d | €3,99 |
| 3 GB | 30 d | €7,99 |
| 5 GB | 30 d | €10,99 |
| 10 GB | 30 d | €18,49 |
| 20 GB | 30 d | €29,99 |
This combo eSIM gives you mobile data in three countries: mainland China, Japan and South Korea. In each country it connects to one fixed partner network: China Unicom in China, au (KDDI) in Japan and SK Telecom in South Korea, with 4G and 5G where available. That gives you good coverage in cities such as Beijing, Shanghai, Tokyo, Osaka, Kyoto, Seoul and Busan, and along the main travel routes. Hong Kong and Macau are not included in this bundle, so choose a separate eSIM for those. Networks: China Unicom, au (KDDI), SK Telecom.
For two weeks across the three countries with maps, translation apps and messaging, 10 GB is a good base. The 1 GB plan (7 days) suits a short stopover, while a three to four week trip or heavy social media use calls for 20 GB.
None of these three countries is covered by EU roaming rules, so check what your home plan charges there before you go. In China many payments go through Alipay or WeChat Pay, and in Korea Naver Map or Kakao Map are the go-to navigation apps, all of which need mobile data.
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Yes. Our eSIM gives you instant mobile data in China mainland & Japan & South Korea on the local networks, with no roaming fees. Your phone needs to support eSIM and be carrier-unlocked.
It depends on your trip. For mostly maps and messaging, 1 to 3 GB is plenty. If you use navigation, social media and some streaming, plan for roughly 1 GB every two to three days.
Right after payment. You receive a QR code on screen and by email immediately. It is best to install it at home over Wi-Fi before you leave.
Yes. Your own SIM stays in your phone for calls and texts. The eSIM runs alongside it, purely for mobile data in China mainland & Japan & South Korea .
The cheapest eSIM for China mainland & Japan & South Korea at esimzu starts from €3,99, with a lowest-price guarantee. You pay in euros by Bancontact, card or crypto and receive the eSIM instantly by QR code, with no app or physical SIM card.
On a regular Chinese SIM card the Great Firewall blocks these apps. A travel eSIM that roams via a foreign network usually bypasses that block, so they keep working. Still, install a VPN in advance as a backup, since nobody can fully guarantee it.
No. Keep data roaming switched on for this eSIM and turn off airplane mode after landing, and your phone picks the partner network in that country by itself. Your data comes from one shared allowance for all three countries, so whatever you do not use in Japan is still available in Seoul or Shanghai within your plan's validity.
For a long time Google Maps did not offer full walking and driving navigation in South Korea because of Korean rules on map data. The local apps Naver Map and Kakao Map are the most complete there, and Naver Map also has an English version, so download at least one of them before you go.
Per gigabyte, separate single-country eSIMs are usually cheaper, and if you only visit one of the three countries, a single-country eSIM is the obvious choice. The advantage of this combo is convenience: you buy and install just one eSIM, spread the data freely across the three countries and have data the moment you land each time.