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
Sophia P.
Japan · Apr 2025
Great value compared to roaming charges. Customer support answered my question quickly. Would definitely buy again.
Grace
GotoeSIM Support
· 1 year ago Thanks a lot, Sophia! Thrilled it made staying connected effortless. We're here whenever you travel again. – Grace, eSIM TopUp Support
Kenji L.
Italy · Apr 2025
Installed in minutes by scanning the QR code. I kept my normal number for calls while using this for data.
Emma
GotoeSIM Support
· 1 year ago Thanks for sharing, Kenji! So happy the Japan & South Korea eSIM kept you connected. We're here whenever you travel again. – Emma 💜
Hana P.
Canada · Apr 2025
Great value compared to roaming charges in Japan & South Korea. Signal held up well on trains and in rural areas. Will use eSIM TopUp for my next trip for sure.
Yuki
GotoeSIM Support
· 1 year ago Cheers, Hana! So pleased it saved you from roaming bills. Safe travels, and see you on your next trip! — Yuki
Lucia F.
Ireland · Apr 2025
Great value compared to roaming charges. Topping up was straightforward when I needed more. Exactly as described — no surprises.
Grace
GotoeSIM Support
· 1 year ago Thanks a lot, Lucia! Thrilled it made staying connected effortless. We're here whenever you travel again. — Grace
Carlos N.
Italy · Apr 2025
Super easy to set up before I flew out. Setup instructions in the app were clear and simple.
Mark
GotoeSIM Support
· 1 year ago Cheers, Carlos! So happy the Japan & South Korea eSIM kept you connected. Enjoy your journeys! – Mark 💜
Arjun W.
Malaysia · Apr 2025
No more hunting for a SIM card kiosk on arrival. Speeds were solid for maps, messaging and browsing.
Sophie
GotoeSIM Support
· 1 year ago Thanks a lot, Arjun! Delighted the speeds worked well for you. We're here whenever you travel again. — Sophie
Sarah K.
Mexico · Apr 2025
Used this on my trip and it worked perfectly in Japan & South Korea. I kept my normal number for calls while using this for data. Zero regrets.
Anna
GotoeSIM Support
· 1 year ago Cheers, Sarah! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! — Anna, eSIM TopUp Support
Omar L.
South Korea · Apr 2025
No more hunting for a SIM card kiosk on arrival. The QR code arrived instantly by email. Great experience overall.
Sophie
GotoeSIM Support
· 1 year ago Really appreciate this, Omar! Love that you were online the moment you landed in Japan & South Korea. Safe travels, and see you on your next trip! – Sophie, eSIM TopUp Support
Isabella D.
South Korea · Apr 2025
Bought it the night before my flight — smooth process. Streaming and video calls worked without buffering.
Tom
GotoeSIM Support
· 1 year ago Cheers, Isabella! Delighted the speeds worked well for you. Come back anytime! – Tom 💜
Priya B.
Portugal · Apr 2025
No more hunting for a SIM card kiosk on arrival in Japan & South Korea. The QR code arrived instantly by email. Five stars from me.
Laura
GotoeSIM Support
· 1 year ago Thanks for sharing, Priya! Delighted the speeds worked well for you. We're here whenever you travel again. — Laura, eSIM TopUp Support
Noah S.
Singapore · Apr 2025
Great value compared to roaming charges. Setup instructions in the app were clear and simple. Telling my friends about this.
Mark
GotoeSIM Support
· 1 year ago Really appreciate this, Noah! Wonderful to hear it worked smoothly in Japan & South Korea. Enjoy your journeys! — Mark, eSIM TopUp Support
Viktor S.
Australia · Apr 2025
Honestly better than buying a local SIM at the airport. Ran hotspot to my laptop with no issues. Would definitely buy again.
Sara
GotoeSIM Support
· 1 year ago Thanks for sharing, Viktor! Wonderful to hear it worked smoothly in Japan & South Korea. Come back anytime! – Sara 💜
Lea V.
Canada · Apr 2025
Honestly better than buying a local SIM at the airport in Japan & South Korea. I kept my normal number for calls while using this for data. Made staying connected effortless.
Diego
GotoeSIM Support
· 1 year ago Thanks for sharing, Lea! So happy the Japan & South Korea eSIM kept you connected. We're here whenever you travel again. — Diego
Noah M.
Vietnam · Apr 2025
Good coverage in the city, a bit patchy in remote areas. Speeds were solid for maps, messaging and browsing.
Yuki
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Noah. 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. – Yuki 💜
Ava P.
Singapore · Apr 2025
Exactly what I needed for travelling. Data lasted the whole trip with room to spare.
Grace
GotoeSIM Support
· 1 year ago Thanks for sharing, Ava! Love that you were online the moment you landed in Japan & South Korea. — Grace, 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?