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
Lucas G.
Egypt · Mar 2026
Worked fine but took a little while to connect at first. The QR code arrived instantly by email.
Yuki
GotoeSIM Support
· 3 months ago Apologies for the trouble, Lucas. We'd love the chance to make this right. Please contact us at gotoesim.com/support and we'll sort it out. — Yuki, GotoeSIM Support
Carlos D.
Mexico · Feb 2026
Decent speeds, though slower than I expected in a few spots. Topping up was straightforward when I needed more.
Emma
GotoeSIM Support
· 5 months ago So sorry to hear this, Carlos. We'd love the chance to make this right. Please contact us at gotoesim.com/support and we'll sort it out. — Emma
Diego C.
South Korea · Feb 2026
Install took me two tries but was fine after that.
Omar
GotoeSIM Support
· 5 months ago So sorry to hear this, Diego. 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
Sophia C.
Poland · Jan 2026
Solid overall, just wish there was a bit more data for the price.
Sara
GotoeSIM Support
· 6 months ago So sorry to hear this, Sophia. This isn't the standard we aim for. Reach our team at gotoesim.com/support so we can help right away. — Sara, GotoeSIM Support
Grace R.
Japan · Dec 2025
Solid overall, just wish there was a bit more data for the price. Streaming and video calls worked without buffering.
Tom
GotoeSIM Support
· 6 months ago We're really sorry, Grace. That's not the experience we want for Japan & South Korea. Please contact us at gotoesim.com/support and we'll sort it out. – Tom, GotoeSIM Support
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
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
Viktor K.
Vietnam · Oct 2025
Install took me two tries but was fine after that.
Mark
GotoeSIM Support
· 9 months ago We're really sorry, Viktor. That's not the experience we want for Japan & South Korea. Reach our team at gotoesim.com/support so we can help right away. – Mark 💜
Giulia W.
Turkey · Sep 2025
Good coverage in the city, a bit patchy in remote areas. Topping up was straightforward when I needed more.
Tom
GotoeSIM Support
· 10 months ago We're really sorry, Giulia. That's not the experience we want for Japan & South Korea. Please contact us at gotoesim.com/support and we'll sort it out. – Tom, GotoeSIM Support
Ava P.
Portugal · Jun 2025
Worked fine but took a little while to connect at first.
Priya
GotoeSIM Support
· 1 year ago So sorry to hear this, Ava. This isn't the standard we aim for. Reach our team at gotoesim.com/support so we can help right away. – Priya 💜
Wei M.
United States · Apr 2025
Solid overall, just wish there was a bit more data for the price. Signal held up well on trains and in rural areas.
Sara
GotoeSIM Support
· 1 year ago So sorry to hear this, Wei. We'd love the chance to make this right. Reach our team at gotoesim.com/support so we can help right away. — Sara, GotoeSIM Support
Max W.
Portugal · Apr 2025
Worked fine but took a little while to connect at first.
Anna
GotoeSIM Support
· 1 year ago Apologies for the trouble, Max. We'd love the chance to make this right. Reach our team at gotoesim.com/support so we can help right away. – Anna 💜
Elena R.
Italy · Apr 2025
Good coverage in the city, a bit patchy in remote areas.
Ken
GotoeSIM Support
· 1 year ago We're really sorry, Elena. This isn't the standard we aim for. Reach our team at gotoesim.com/support so we can help right away. – Ken 💜
Katya H.
Spain · Feb 2025
Good coverage in the city, a bit patchy in remote areas.
James
GotoeSIM Support
· 1 year ago We're really sorry, Katya. We'd love the chance to make this right. Please contact us at gotoesim.com/support and we'll sort it out. — James
Anna G.
Spain · Jan 2025
Good coverage in the city, a bit patchy in remote areas.
James
GotoeSIM Support
· 1 year ago So sorry to hear this, Anna. This isn't the standard we aim for. Reach our team at gotoesim.com/support so we can help right away. — James, GotoeSIM Support
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