Japan & South Korea eSIM — reviews & details
Japan & South Korea 5GB 30Days · 5 GB · 30 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea SKTelecom 5G LG Uplus 5G
Traveller reviews
Sven B.
Italy · Mar 2026
Honestly better than buying a local SIM at the airport in Japan & South Korea. Setup instructions in the app were clear and simple. Highly recommend for any traveller.
Sara
GotoeSIM Support
· 5 months ago Really appreciate this, Sven! So happy the Japan & South Korea eSIM kept you connected. Enjoy your journeys! – Sara 💜
Emma K.
Thailand · Mar 2026
Used this on my trip and it worked perfectly. Setup instructions in the app were clear and simple. Five stars from me.
Anna
GotoeSIM Support
· 5 months ago Thank you so much, Emma! Great to know the setup was quick and easy. – Anna 💜
Ji-woo S.
Singapore · Feb 2026
Used this on my trip and it worked perfectly. Activation was automatic when I arrived in Japan & South Korea.
Omar
GotoeSIM Support
· 5 months ago So glad to hear this, Ji-woo! Delighted the speeds worked well for you. Safe travels, and see you on your next trip! – Omar, eSIM TopUp Support
Somchai S.
Philippines · Feb 2026
Super easy to set up before I flew out. The QR code arrived instantly by email. Would definitely buy again.
Laura
GotoeSIM Support
· 5 months ago Thank you so much, Somchai! Thrilled it made staying connected effortless. Wishing you many more connected adventures! — Laura
Wei V.
Thailand · Feb 2026
Honestly better than buying a local SIM at the airport. The QR code arrived instantly by email. Would definitely buy again.
Mark
GotoeSIM Support
· 5 months ago Really appreciate this, Wei! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! — Mark, eSIM TopUp Support
Fatima F.
Turkey · Feb 2026
Super easy to set up before I flew out in Japan & South Korea. Setup instructions in the app were clear and simple. Zero regrets.
Laura
GotoeSIM Support
· 5 months ago Thank you for the kind words, Fatima! So happy the Japan & South Korea eSIM kept you connected. We're here whenever you travel again. — Laura
Arjun G.
Sweden · Feb 2026
Great value compared to roaming charges in Japan & South Korea. Customer support answered my question quickly.
Yuki
GotoeSIM Support
· 5 months ago Thank you so much, Arjun! So pleased it saved you from roaming bills. – Yuki 💜
Wei H.
UAE · Feb 2026
Bought it the night before my flight — smooth process. Customer support answered my question quickly.
David
GotoeSIM Support
· 5 months ago Thanks for sharing, Wei! Wonderful to hear it worked smoothly in Japan & South Korea. Wishing you many more connected adventures! – David 💜
Carlos V.
India · Feb 2026
Connected the moment I landed. Signal held up well on trains and in rural areas. Exactly as described — no surprises.
Sophie
GotoeSIM Support
· 5 months ago So glad to hear this, Carlos! So pleased it saved you from roaming bills. — Sophie
Andre T.
UAE · Feb 2026
Bought it the night before my flight — smooth process. Ran hotspot to my laptop with no issues. Great experience overall.
Emma
GotoeSIM Support
· 5 months ago Really appreciate this, Andre! Wonderful to hear it worked smoothly in Japan & South Korea. Enjoy your journeys! — Emma
Max S.
Brazil · Feb 2026
Installed in minutes by scanning the QR code. The QR code arrived instantly by email. Five stars from me.
James
GotoeSIM Support
· 5 months ago Cheers, Max! Delighted the speeds worked well for you. – James, eSIM TopUp Support
Olivia M.
Poland · Feb 2026
Good coverage in the city, a bit patchy in remote areas.
Mark
GotoeSIM Support
· 5 months ago So sorry to hear this, Olivia. We'd love the chance to make this right. Reach our team at esimtopup.io/support so we can help right away. – Mark 💜
Sofia V.
Ireland · Feb 2026
Connected the moment I landed. Coverage was strong even outside the city. Zero regrets.
Mark
GotoeSIM Support
· 5 months ago So glad to hear this, Sofia! Love that you were online the moment you landed in Japan & South Korea. We're here whenever you travel again. — Mark, eSIM TopUp Support
Linh T.
Saudi Arabia · Feb 2026
No more hunting for a SIM card kiosk on arrival. Speeds were solid for maps, messaging and browsing. A must-have for international travel.
James
GotoeSIM Support
· 5 months ago So glad to hear this, Linh! Love that you were online the moment you landed in Japan & South Korea. We're here whenever you travel again. – James 💜
Aisha M.
Vietnam · Feb 2026
Super easy to set up before I flew out. Activation was automatic when I arrived. Telling my friends about this.
James
GotoeSIM Support
· 5 months ago Cheers, Aisha! Wonderful to hear it worked smoothly in Japan & South Korea. Wishing you many more connected adventures! – James, eSIM TopUp Support
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 5GB 30Days plan costs $9.75 for 5 GB over 30 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 eSIM TopUp 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
Emma M. · 2 months ago
Can I use this for hotspot/tethering?
Andre H. · 2 months ago
Is 5G supported or just 4G?
Elena H. · 3 months ago
Thanks, installed with no problems on my Samsung.
Arjun N. · 4 months ago
How do I check how much data I have left?
Lucia L. · 4 months ago
Will this keep my WhatsApp active with my home number?
Mohammed P. · 6 months ago
Which networks does this connect to?
Katya C. · 7 months ago
Can I use it in nearby countries too?
Liam G. · 7 months ago
Can I top up the same eSIM instead of buying a new one?
Emma C. · 7 months ago
Great guide, the setup steps were really helpful.
Katya K. · 9 months ago
How long does the QR code take to arrive after payment?
Lea N. · 1 year ago
Does the validity start on purchase or on first use?
Marco N. · 1 year ago
Do I need to install it before I travel or after I arrive?