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 U+ 5G
Traveller reviews
Arjun V.
Egypt · Jul 2026
Decent speeds, though slower than I expected in a few spots.
Laura
GotoeSIM Support
· 4 days ago We're really sorry, Arjun. That's not the experience we want for China mainland & Japan & South Korea. Reach our team at gotoesim.com/support so we can help right away. — Laura
Grace K.
Poland · Jul 2026
Good coverage in the city, a bit patchy in remote areas. Streaming and video calls worked without buffering.
Laura
GotoeSIM Support
· 5 days ago Appreciate you sharing this, Grace. Glad it mostly worked for you in China mainland & Japan & South Korea — we're always improving our coverage. Any questions, our team is at gotoesim.com/support. – Laura, GotoeSIM Support
Haruto M.
Egypt · Jul 2026
Saved me a fortune on my holiday. Data lasted the whole trip with room to spare. Will use GotoeSIM for my next trip for sure.
Omar
GotoeSIM Support
· 6 days ago So glad to hear this, Haruto! Wonderful to hear it worked smoothly in China mainland & Japan & South Korea. – Omar 💜
Wei N.
Saudi Arabia · Jul 2026
Great value compared to roaming charges. Setup instructions in the app were clear and simple. A must-have for international travel.
Omar
GotoeSIM Support
· 6 days ago Thank you so much, Wei! Great to know the setup was quick and easy. – Omar 💜
Ananya R.
Brazil · Jul 2026
Great value compared to roaming charges. Signal held up well on trains and in rural areas. Highly recommend for any traveller.
Emma
GotoeSIM Support
· 1 week ago So glad to hear this, Ananya! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! – Emma, GotoeSIM Support
Andre G.
Brazil · Jul 2026
Exactly what I needed for travelling. Customer support answered my question quickly. Exactly as described — no surprises.
Grace
GotoeSIM Support
· 1 week ago Really appreciate this, Andre! So pleased it saved you from roaming bills. Safe travels, and see you on your next trip! – Grace, GotoeSIM Support
Budi L.
Germany · Jul 2026
Did the job without any drama. Signal held up well on trains and in rural areas. Five stars from me.
Sophie
GotoeSIM Support
· 1 week ago Thanks for sharing, Budi! Delighted the speeds worked well for you. Wishing you many more connected adventures! – Sophie, GotoeSIM Support
Giulia B.
Portugal · Jul 2026
Bought it the night before my flight — smooth process. Setup instructions in the app were clear and simple.
Anna
GotoeSIM Support
· 1 week ago Thank you so much, Giulia! So pleased it saved you from roaming bills. — Anna
Sarah T.
Saudi Arabia · Jul 2026
Saved me a fortune on my holiday. The QR code arrived instantly by email. Five stars from me.
Omar
GotoeSIM Support
· 1 week ago Thanks a lot, Sarah! Thrilled it made staying connected effortless. Come back anytime! – Omar 💜
Elena C.
Australia · Jul 2026
Good coverage in the city, a bit patchy in remote areas.
Laura
GotoeSIM Support
· 1 week ago Thank you for taking the time, Elena. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at gotoesim.com/support. – Laura, GotoeSIM Support
Sophia S.
Ireland · Jul 2026
Saved me a fortune on my holiday. The QR code arrived instantly by email. Telling my friends about this.
Ingrid
GotoeSIM Support
· 1 week ago So glad to hear this, Sophia! Thrilled it made staying connected effortless. We're here whenever you travel again. — Ingrid
Omar P.
Thailand · Jul 2026
Honestly better than buying a local SIM at the airport. Activation was automatic when I arrived.
Laura
GotoeSIM Support
· 2 weeks ago Cheers, Omar! Love that you were online the moment you landed in China mainland & Japan & South Korea. – Laura, GotoeSIM Support
Noah C.
France · Jul 2026
Honestly better than buying a local SIM at the airport in China mainland & Japan & South Korea. I kept my normal number for calls while using this for data. Made staying connected effortless.
Sara
GotoeSIM Support
· 3 weeks ago Thank you so much, Noah! Wonderful to hear it worked smoothly in China mainland & Japan & South Korea. – Sara 💜
Ji-woo G.
Ireland · Jul 2026
Super easy to set up before I flew out. Signal held up well on trains and in rural areas. Will use GotoeSIM for my next trip for sure.
Priya
GotoeSIM Support
· 3 weeks ago Thanks for sharing, Ji-woo! Great to know the setup was quick and easy. Wishing you many more connected adventures! — Priya
Daniel S.
France · Jul 2026
Connected the moment I landed. Speeds were solid for maps, messaging and browsing. Five stars from me.
Yuki
GotoeSIM Support
· 3 weeks ago Thank you for the kind words, Daniel! Wonderful to hear it worked smoothly in China mainland & Japan & South Korea. We're here whenever you travel again. – Yuki 💜
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 💜