Japan & South Korea eSIM — reviews & details
Japan & South Korea 1GB 7Days · 1 GB · 7 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea LG U+ 5G SKTelecom 5G
Traveller reviews
Mateo W.
Spain · Dec 2025
Worked fine but took a little while to connect at first.
Omar
GotoeSIM Support
· 7 months ago We're really sorry, Mateo. That's not the experience we want for Japan & South Korea. Please contact us at gotoesim.com/support and we'll sort it out. — Omar, GotoeSIM Support
Arjun H.
Turkey · Dec 2025
Great value compared to roaming charges. Data lasted the whole trip with room to spare. Highly recommend for any traveller.
Anna
GotoeSIM Support
· 7 months ago So glad to hear this, Arjun! Delighted the speeds worked well for you. We're here whenever you travel again. – Anna 💜
Ji-woo M.
Mexico · Dec 2025
Bought it the night before my flight — smooth process in Japan & South Korea. Speeds were solid for maps, messaging and browsing. Exactly as described — no surprises.
Anna
GotoeSIM Support
· 7 months ago So glad to hear this, Ji-woo! So happy the Japan & South Korea eSIM kept you connected. Wishing you many more connected adventures! — Anna
Ravi W.
Ireland · Dec 2025
Honestly better than buying a local SIM at the airport in Japan & South Korea. Coverage was strong even outside the city. Made staying connected effortless.
Sara
GotoeSIM Support
· 7 months ago Thank you for the kind words, Ravi! So pleased it saved you from roaming bills. Safe travels, and see you on your next trip! — Sara
Ava G.
Netherlands · Dec 2025
Honestly better than buying a local SIM at the airport. I kept my normal number for calls while using this for data.
Ken
GotoeSIM Support
· 7 months ago Cheers, Ava! So happy the Japan & South Korea eSIM kept you connected. — Ken
Ingrid F.
Germany · Dec 2025
Bought it the night before my flight — smooth process. Data lasted the whole trip with room to spare.
Sara
GotoeSIM Support
· 7 months ago Thank you for the kind words, Ingrid! So happy the Japan & South Korea eSIM kept you connected. We're here whenever you travel again. — Sara
Mohammed H.
Singapore · Dec 2025
Bought it the night before my flight — smooth process. Signal held up well on trains and in rural areas.
Yuki
GotoeSIM Support
· 7 months ago Thanks a lot, Mohammed! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! — Yuki
Nguyen L.
Netherlands · Dec 2025
Super easy to set up before I flew out. Ran hotspot to my laptop with no issues.
Laura
GotoeSIM Support
· 7 months ago Thanks a lot, Nguyen! Love that you were online the moment you landed in Japan & South Korea. Come back anytime! — Laura
Ji-woo M.
Netherlands · Dec 2025
Saved me a fortune on my holiday. Data lasted the whole trip with room to spare. Highly recommend for any traveller.
James
GotoeSIM Support
· 7 months ago Thank you for the kind words, Ji-woo! So pleased it saved you from roaming bills. – James 💜
Sarah P.
Brazil · Dec 2025
No more hunting for a SIM card kiosk on arrival. Coverage was strong even outside the city.
Sara
GotoeSIM Support
· 7 months ago So glad to hear this, Sarah! Delighted the speeds worked well for you. — Sara
Arjun F.
Australia · Dec 2025
Saved me a fortune on my holiday. Data lasted the whole trip with room to spare. Five stars from me.
James
GotoeSIM Support
· 7 months ago Thank you for the kind words, Arjun! Love that you were online the moment you landed in Japan & South Korea. Safe travels, and see you on your next trip! – James 💜
Thomas R.
Philippines · Dec 2025
First time using an eSIM and it was painless. Speeds were solid for maps, messaging and browsing. A must-have for international travel.
Sara
GotoeSIM Support
· 7 months ago So glad to hear this, Thomas! Delighted the speeds worked well for you. Enjoy your journeys! – Sara 💜
Isabella G.
New Zealand · Dec 2025
Did the job without any drama. Streaming and video calls worked without buffering.
Diego
GotoeSIM Support
· 7 months ago Thanks for sharing, Isabella! Delighted the speeds worked well for you. Wishing you many more connected adventures! – Diego, GotoeSIM Support
Max C.
Vietnam · Dec 2025
Worked fine but took a little while to connect at first. Coverage was strong even outside the city.
Priya
GotoeSIM Support
· 7 months ago So sorry to hear this, Max. That's not the experience we want for Japan & South Korea. Please contact us at gotoesim.com/support and we'll sort it out. — Priya
Ethan K.
United States · Dec 2025
Super easy to set up before I flew out. Signal held up well on trains and in rural areas. Would definitely buy again.
Priya
GotoeSIM Support
· 7 months ago Thanks a lot, Ethan! Love that you were online the moment you landed in Japan & South Korea. Enjoy your journeys! — Priya
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 1GB 7Days plan costs $2.03 for 1 GB over 7 days, paid once with no hidden fees.
How do I activate my 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 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 Japan & South Korea.
Comments & questions
Carlos P. · 2 months ago
Can I top up the same eSIM instead of buying a new one?
Yes Carlos, you can top up the same eSIM anytime — no need to buy a new one. — Sara, GotoeSIM Support
Hana V. · 4 months ago
Is 5G supported or just 4G?
Yes Hana, 5G is supported where the local network offers it, otherwise fast 4G. – Laura, GotoeSIM Support
Aisha N. · 5 months ago
Is roaming charged extra or is it all included?
No surprise fees, Aisha! Roaming is part of the plan and never billed separately. — Mark
Louis G. · 5 months ago
How long does the QR code take to arrive after payment?
Your QR code arrives instantly, Louis — within seconds of payment, by email and in your account. – Grace, GotoeSIM Support
Wei L. · 5 months ago
Do I need to install it before I travel or after I arrive?
Install on Wi-Fi before you fly, Wei — it switches on when you land. — Priya
Priya R. · 8 months ago
Can I use it in nearby countries too?
For nearby countries, Priya, a regional plan may suit you better — happy to help you pick. — Ken, GotoeSIM Support
Lucia P. · 9 months ago
Does this work on an iPhone 13?
Yes Lucia, it works on iPhone XS and newer — just add the eSIM under Settings › Cellular › Add eSIM. – Omar 💜
Lucas D. · 9 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, Lucas. – Ingrid, GotoeSIM Support
Katya C. · 10 months ago
Which networks does this connect to?
You'll be on top local networks, Katya — full details are on the plan page under Coverage. – Tom 💜
Somchai B. · 11 months ago
Thanks, installed with no problems on my Samsung.
It works great on modern Samsung phones, Somchai! Add it via SIM manager and you're set. – Yuki, GotoeSIM Support
Yuki P. · 11 months ago
Does the validity start on purchase or on first use?
The clock starts on first use in-country, Yuki, so buying early is totally fine. — Sophie, GotoeSIM Support
Priya S. · 1 year ago
Will this keep my WhatsApp active with my home number?
Yes Priya, WhatsApp keeps working with your home number — the eSIM only carries data. — James, GotoeSIM Support