Japan & South Korea eSIM — reviews & details
Japan & South Korea 10GB 30days · 10 GB · 30 days
620 reviews
Coverage & networks
- Japan KDDI/au 5G
- South Korea SKTelecom 5G LG Uplus 5G
Traveller reviews
Olivia C.
France · Dec 2025
Connected the moment I landed. Streaming and video calls worked without buffering. Highly recommend for any traveller.
Anna
GotoeSIM Support
· 7 months ago Thanks for sharing, Olivia! Delighted the speeds worked well for you. – Anna, eSIM TopUp Support
Giulia L.
Thailand · Dec 2025
Great value compared to roaming charges. Data lasted the whole trip with room to spare. Highly recommend for any traveller.
Priya
GotoeSIM Support
· 7 months ago Thanks a lot, Giulia! Wonderful to hear it worked smoothly in Japan & South Korea. Enjoy your journeys! — Priya
Chloe L.
Vietnam · Dec 2025
Connected the moment I landed. Speeds were solid for maps, messaging and browsing. Made staying connected effortless.
Diego
GotoeSIM Support
· 8 months ago Thanks a lot, Chloe! So pleased it saved you from roaming bills. – Diego, eSIM TopUp Support
Noah R.
Ireland · Dec 2025
Bought it the night before my flight — smooth process. Setup instructions in the app were clear and simple. Will use eSIM TopUp for my next trip for sure.
James
GotoeSIM Support
· 8 months ago Cheers, Noah! So pleased it saved you from roaming bills. Wishing you many more connected adventures! – James 💜
Sri V.
Turkey · Dec 2025
Exactly what I needed for travelling. Speeds were solid for maps, messaging and browsing. A must-have for international travel.
Diego
GotoeSIM Support
· 8 months ago Cheers, Sri! Love that you were online the moment you landed in Japan & South Korea. Safe travels, and see you on your next trip! — Diego
Lucia H.
Australia · Dec 2025
Installed in minutes by scanning the QR code. Signal held up well on trains and in rural areas. Telling my friends about this.
Anna
GotoeSIM Support
· 8 months ago So glad to hear this, Lucia! Delighted the speeds worked well for you. Safe travels, and see you on your next trip! — Anna, eSIM TopUp Support
Grace V.
United States · Dec 2025
Honestly better than buying a local SIM at the airport. The QR code arrived instantly by email. Telling my friends about this.
Sophie
GotoeSIM Support
· 8 months ago Cheers, Grace! So pleased it saved you from roaming bills. – Sophie 💜
Kenji T.
United States · Dec 2025
Bought it the night before my flight — smooth process in Japan & South Korea. Signal held up well on trains and in rural areas.
Anna
GotoeSIM Support
· 8 months ago Cheers, Kenji! So happy the Japan & South Korea eSIM kept you connected. Wishing you many more connected adventures! — Anna, eSIM TopUp Support
Sophia S.
Australia · Dec 2025
Bought it the night before my flight — smooth process. Signal held up well on trains and in rural areas.
Ken
GotoeSIM Support
· 8 months ago Thanks for sharing, Sophia! Love that you were online the moment you landed in Japan & South Korea. Safe travels, and see you on your next trip! – Ken, eSIM TopUp Support
Hugo W.
Indonesia · Dec 2025
Connected the moment I landed. Streaming and video calls worked without buffering. Made staying connected effortless.
Priya
GotoeSIM Support
· 8 months ago Cheers, Hugo! So happy the Japan & South Korea eSIM kept you connected. Come back anytime! – Priya, eSIM TopUp Support
Emma B.
Australia · Dec 2025
Connected the moment I landed in Japan & South Korea. Customer support answered my question quickly. Made staying connected effortless.
James
GotoeSIM Support
· 8 months ago Thanks for sharing, Emma! So pleased it saved you from roaming bills. – James 💜
Camila L.
Japan · Dec 2025
Install took me two tries but was fine after that. Ran hotspot to my laptop with no issues.
Sara
GotoeSIM Support
· 8 months ago Thanks for the honest feedback, Camila. 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. — Sara
Grace N.
France · Dec 2025
Used this on my trip and it worked perfectly. Activation was automatic when I arrived. Would definitely buy again.
David
GotoeSIM Support
· 8 months ago So glad to hear this, Grace! Delighted the speeds worked well for you. Enjoy your journeys! — David, eSIM TopUp Support
Katya D.
Japan · Nov 2025
Installed in minutes by scanning the QR code. Speeds were solid for maps, messaging and browsing. Highly recommend for any traveller.
Diego
GotoeSIM Support
· 8 months ago Thanks for sharing, Katya! Wonderful to hear it worked smoothly in Japan & South Korea. Enjoy your journeys! – Diego, eSIM TopUp Support
Wei W.
Thailand · Nov 2025
Great value compared to roaming charges. Topping up was straightforward when I needed more. Great experience overall.
Grace
GotoeSIM Support
· 8 months ago Cheers, Wei! Thrilled it made staying connected effortless. – Grace, eSIM TopUp Support
Frequently asked questions
How much does the Japan & South Korea eSIM cost?
The Japan & South Korea 10GB 30days plan costs $19.20 for 10 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
Lea T. · 4 weeks ago
Can I top up the same eSIM instead of buying a new one?
Mohammed H. · 1 month ago
How long does the QR code take to arrive after payment?
Ji-woo R. · 3 months ago
Is roaming charged extra or is it all included?
Budi C. · 3 months ago
Can I use this for hotspot/tethering?
Arjun S. · 4 months ago
Does the validity start on purchase or on first use?
Sven R. · 5 months ago
Which networks does this connect to?
Sarah D. · 7 months ago
Can I use it in nearby countries too?
Mei B. · 7 months ago
Thanks, installed with no problems on my Samsung.
Wei T. · 7 months ago
Is 5G supported or just 4G?
Wei D. · 9 months ago
How do I check how much data I have left?
Isabella H. · 9 months ago
Great guide, the setup steps were really helpful.
Fatima K. · 1 year ago
Does this work on an iPhone 13?