China mainland & Japan & South Korea eSIM — reviews & details
China mainland & Japan & South Korea 20GB 30Days · 20 GB · 30 days
620 reviews
Coverage & networks
- China mainland China Unicom 5G
- Japan KDDI/au 5G
- South Korea SKTelecom 5G LG Uplus 5G
Traveller reviews
Katya W.
Switzerland · Sep 2025
Great value compared to roaming charges. Coverage was strong even outside the city. Will use GotoeSIM for my next trip for sure.
Priya
GotoeSIM Support
· 10 months ago Thanks a lot, Katya! Love that you were online the moment you landed in China mainland & Japan & South Korea. We're here whenever you travel again. – Priya 💜
Ethan L.
Singapore · Sep 2025
Super easy to set up before I flew out. I kept my normal number for calls while using this for data. Telling my friends about this.
Diego
GotoeSIM Support
· 10 months ago Thank you so much, Ethan! Delighted the speeds worked well for you. We're here whenever you travel again. – Diego, GotoeSIM Support
Arjun T.
Vietnam · Sep 2025
Honestly better than buying a local SIM at the airport. Topping up was straightforward when I needed more. Telling my friends about this.
Ingrid
GotoeSIM Support
· 10 months ago So glad to hear this, Arjun! Thrilled it made staying connected effortless. We're here whenever you travel again. — Ingrid, GotoeSIM Support
Kenji D.
Mexico · Sep 2025
Decent speeds, though slower than I expected in a few spots.
Emma
GotoeSIM Support
· 10 months ago We're really sorry, Kenji. This isn't the standard we aim for. Reach our team at gotoesim.com/support so we can help right away. — Emma, GotoeSIM Support
Ji-woo H.
Brazil · Sep 2025
Bought it the night before my flight — smooth process in China mainland & Japan & South Korea. Coverage was strong even outside the city. Made staying connected effortless.
Ken
GotoeSIM Support
· 10 months ago Thanks a lot, Ji-woo! Delighted the speeds worked well for you. We're here whenever you travel again. – Ken, GotoeSIM Support
Arjun P.
India · Sep 2025
Bought it the night before my flight — smooth process. I kept my normal number for calls while using this for data.
Ken
GotoeSIM Support
· 10 months ago Really appreciate this, Arjun! Great to know the setup was quick and easy. Come back anytime! – Ken, GotoeSIM Support
Giulia B.
Australia · Sep 2025
Great value compared to roaming charges in China mainland & Japan & South Korea. Data lasted the whole trip with room to spare.
Grace
GotoeSIM Support
· 10 months ago So glad to hear this, Giulia! So pleased it saved you from roaming bills. Safe travels, and see you on your next trip! – Grace 💜
Ethan G.
Germany · Sep 2025
Honestly better than buying a local SIM at the airport. Customer support answered my question quickly. A must-have for international travel.
Omar
GotoeSIM Support
· 10 months ago Cheers, Ethan! Love that you were online the moment you landed in China mainland & Japan & South Korea. Enjoy your journeys! – Omar, GotoeSIM Support
Liam H.
United Kingdom · Sep 2025
Honestly better than buying a local SIM at the airport. Topping up was straightforward when I needed more.
Ingrid
GotoeSIM Support
· 10 months ago Thank you for the kind words, Liam! So happy the China mainland & Japan & South Korea eSIM kept you connected. Wishing you many more connected adventures! – Ingrid 💜
Nadia F.
Vietnam · Sep 2025
First time using an eSIM and it was painless. Signal held up well on trains and in rural areas.
Omar
GotoeSIM Support
· 10 months ago So glad to hear this, Nadia! So pleased it saved you from roaming bills. – Omar, GotoeSIM Support
Daniel D.
Saudi Arabia · Sep 2025
Bought it the night before my flight — smooth process in China mainland & Japan & South Korea. I kept my normal number for calls while using this for data.
Anna
GotoeSIM Support
· 10 months ago Really appreciate this, Daniel! Love that you were online the moment you landed in China mainland & Japan & South Korea. Safe travels, and see you on your next trip! – Anna, GotoeSIM Support
Somchai R.
Ireland · Sep 2025
Great value compared to roaming charges. Signal held up well on trains and in rural areas. Will use GotoeSIM for my next trip for sure.
David
GotoeSIM Support
· 10 months ago Thank you so much, Somchai! Love that you were online the moment you landed in China mainland & Japan & South Korea. Enjoy your journeys! — David
Ethan R.
Poland · Sep 2025
Honestly better than buying a local SIM at the airport. Data lasted the whole trip with room to spare. Highly recommend for any traveller.
James
GotoeSIM Support
· 10 months ago Really appreciate this, Ethan! So happy the China mainland & Japan & South Korea eSIM kept you connected. — James, GotoeSIM Support
Nadia N.
Sweden · Aug 2025
Connected the moment I landed in China mainland & Japan & South Korea. I kept my normal number for calls while using this for data. Great experience overall.
Ingrid
GotoeSIM Support
· 10 months ago Thanks for sharing, Nadia! Wonderful to hear it worked smoothly in China mainland & Japan & South Korea. Enjoy your journeys! — Ingrid, GotoeSIM Support
Fatima K.
Australia · Aug 2025
Used this on my trip and it worked perfectly. Data lasted the whole trip with room to spare. Five stars from me.
David
GotoeSIM Support
· 11 months ago Thanks a lot, Fatima! So happy the China mainland & Japan & South Korea eSIM kept you connected. – David, GotoeSIM Support
Frequently asked questions
How much does the China mainland & Japan & South Korea eSIM cost?
The China mainland & Japan & South Korea 20GB 30Days plan costs $37.50 for 20 GB over 30 days, paid once with no hidden fees.
How do I activate my China mainland & Japan & South Korea eSIM?
Scan the QR code in your phone settings (Cellular/Mobile → Add eSIM) or tap Install in the GotoeSIM app. Install on Wi-Fi before your trip; it activates when you arrive in China mainland & Japan & South Korea.
Will this eSIM work on my phone?
It works on any eSIM-compatible, carrier-unlocked phone — iPhone XS and newer, Google Pixel 3 and newer, and recent Samsung Galaxy models.
Can I keep my regular number?
Yes. The eSIM runs alongside your normal SIM, so you keep your number for calls and texts while using data in China mainland & Japan & South Korea.
Comments & questions
Lucia T. · 2 months ago
Is roaming charged extra or is it all included?
Roaming is included in the plan, Lucia — no extra charges, it's all prepaid. – Emma, GotoeSIM Support
Pablo H. · 3 months ago
Does this work on an iPhone 13?
Absolutely, Pablo! Any iPhone XS or newer supports it. Scan the QR in Settings › Cellular. – Laura, GotoeSIM Support
Aisha V. · 3 months ago
Is 5G supported or just 4G?
5G is available where covered, Aisha — you'll always get the best speed on offer. – James 💜
Lea H. · 5 months ago
Do I need to install it before I travel or after I arrive?
We recommend installing before you travel, Lea, then it activates automatically on arrival. — Anna, GotoeSIM Support
Liam G. · 5 months ago
Can I top up the same eSIM instead of buying a new one?
Yes Liam, you can top up the same eSIM anytime — no need to buy a new one. – Sara, GotoeSIM Support
Haruto W. · 6 months ago
How do I check how much data I have left?
You can check remaining data anytime in the GotoeSIM app under My eSIMs, Haruto. – Sophie, GotoeSIM Support
Omar L. · 7 months ago
Does the validity start on purchase or on first use?
The clock starts on first use in-country, Omar, so buying early is totally fine. – Emma, GotoeSIM Support
Sven M. · 8 months ago
Can I use this for hotspot/tethering?
Tethering is supported, Sven! Feel free to hotspot to your other devices. — James
Andre R. · 8 months ago
Great guide, the setup steps were really helpful.
Thanks Andre, that means a lot! Reach out anytime. — Priya
Daniel M. · 10 months ago
Can I use it in nearby countries too?
This plan covers its listed destination, Daniel — for multiple countries, check our regional plans. – Laura, GotoeSIM Support
Wei L. · 10 months ago
Thanks, installed with no problems on my Samsung.
Yes Wei, recent Samsung Galaxy models support eSIM — add it under Settings › Connections › SIM manager. — Anna
Mohammed V. · 1 year ago
How long does the QR code take to arrive after payment?
Your QR code arrives instantly, Mohammed — within seconds of payment, by email and in your account. – Sophie 💜