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
Elena K.
Egypt · Mar 2025
Saved me a fortune on my holiday. Data lasted the whole trip with room to spare.
Laura
GotoeSIM Support
· 1 year ago Thank you for the kind words, Elena! Love that you were online the moment you landed in Japan & South Korea. Wishing you many more connected adventures! – Laura, eSIM TopUp Support
Mohammed R.
India · Mar 2025
Installed in minutes by scanning the QR code in Japan & South Korea. Coverage was strong even outside the city. Made staying connected effortless.
Tom
GotoeSIM Support
· 1 year ago Thanks for sharing, Mohammed! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! – Tom 💜
Sophia R.
Switzerland · Mar 2025
Installed in minutes by scanning the QR code. Setup instructions in the app were clear and simple. Highly recommend for any traveller.
Grace
GotoeSIM Support
· 1 year ago So glad to hear this, Sophia! Love that you were online the moment you landed in Japan & South Korea. — Grace, eSIM TopUp Support
Anna K.
Australia · Feb 2025
Bought it the night before my flight — smooth process. Speeds were solid for maps, messaging and browsing.
Omar
GotoeSIM Support
· 1 year ago Really appreciate this, Anna! Delighted the speeds worked well for you. Safe travels, and see you on your next trip! – Omar 💜
Mei G.
Thailand · Feb 2025
Exactly what I needed for travelling. Customer support answered my question quickly. A must-have for international travel.
Emma
GotoeSIM Support
· 1 year ago So glad to hear this, Mei! Wonderful to hear it worked smoothly in Japan & South Korea. — Emma, eSIM TopUp Support
Sri V.
Thailand · Feb 2025
Did the job without any drama. Speeds were solid for maps, messaging and browsing. A must-have for international travel.
Ken
GotoeSIM Support
· 1 year ago Thanks for sharing, Sri! Thrilled it made staying connected effortless. Come back anytime! – Ken 💜
Sofia D.
South Korea · Feb 2025
Connected the moment I landed in Japan & South Korea. Topping up was straightforward when I needed more. Five stars from me.
Emma
GotoeSIM Support
· 1 year ago Thank you for the kind words, Sofia! So happy the Japan & South Korea eSIM kept you connected. Come back anytime! — Emma
Arjun B.
Switzerland · Feb 2025
Solid overall, just wish there was a bit more data for the price. Activation was automatic when I arrived.
Sara
GotoeSIM Support
· 1 year ago We're really sorry, Arjun. We'd love the chance to make this right. Reach our team at esimtopup.io/support so we can help right away. – Sara 💜
Nguyen V.
Canada · Feb 2025
First time using an eSIM and it was painless in Japan & South Korea. Setup instructions in the app were clear and simple. Great experience overall.
Omar
GotoeSIM Support
· 1 year ago Thank you so much, Nguyen! Great to know the setup was quick and easy. Enjoy your journeys! — Omar, eSIM TopUp Support
Marco R.
Ireland · Feb 2025
Great value compared to roaming charges. Signal held up well on trains and in rural areas. Exactly as described — no surprises.
Diego
GotoeSIM Support
· 1 year ago Really appreciate this, Marco! Love that you were online the moment you landed in Japan & South Korea. Wishing you many more connected adventures! – Diego 💜
Chloe C.
Germany · Feb 2025
Super easy to set up before I flew out. Speeds were solid for maps, messaging and browsing.
Emma
GotoeSIM Support
· 1 year ago Thanks for sharing, Chloe! So pleased it saved you from roaming bills. Enjoy your journeys! — Emma
Lucia B.
Ireland · Feb 2025
Decent speeds, though slower than I expected in a few spots.
David
GotoeSIM Support
· 1 year ago Thank you for taking the time, Lucia. Good to hear it did the job, and we're working to make it even better. Reach us anytime at esimtopup.io/support if we can help. – David 💜
Lucia D.
Canada · Feb 2025
Worked fine but took a little while to connect at first.
David
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Lucia. We're constantly optimising speeds and coverage across Japan & South Korea. Any questions, our team is at esimtopup.io/support. – David 💜
Katya N.
Australia · Feb 2025
Super easy to set up before I flew out. Speeds were solid for maps, messaging and browsing. Exactly as described — no surprises.
Sophie
GotoeSIM Support
· 1 year ago Really appreciate this, Katya! Great to know the setup was quick and easy. – Sophie, eSIM TopUp Support
Beatriz P.
Egypt · Feb 2025
Installed in minutes by scanning the QR code. Speeds were solid for maps, messaging and browsing. Made staying connected effortless.
Omar
GotoeSIM Support
· 1 year ago So glad to hear this, Beatriz! So pleased it saved you from roaming bills. Wishing you many more connected adventures! — Omar, 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?