Japan eSIM — reviews & details
Japan 20GB 30Days (IIJ) · 20 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Fatima N.
Turkey · Jun 2025
Saved me a fortune on my holiday. I kept my normal number for calls while using this for data. Made staying connected effortless.
Omar
GotoeSIM Support
· 1 year ago Thanks for sharing, Fatima! Thrilled it made staying connected effortless. We're here whenever you travel again. – Omar, eSIM TopUp Support
Sophia P.
Switzerland · Jun 2025
Did the job without any drama in Japan. Streaming and video calls worked without buffering. Great experience overall.
Laura
GotoeSIM Support
· 1 year ago Thanks a lot, Sophia! Thrilled it made staying connected effortless. — Laura
Ravi L.
Singapore · Jun 2025
Exactly what I needed for travelling. 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 Thank you so much, Ravi! Love that you were online the moment you landed in Japan. Come back anytime! – Yuki 💜
Sri T.
Netherlands · Jun 2025
Bought it the night before my flight — smooth process in Japan. Ran hotspot to my laptop with no issues. Will use eSIM TopUp for my next trip for sure.
Anna
GotoeSIM Support
· 1 year ago Cheers, Sri! Love that you were online the moment you landed in Japan. Enjoy your journeys! — Anna
Sophia W.
Portugal · Jun 2025
No more hunting for a SIM card kiosk on arrival. Data lasted the whole trip with room to spare.
Tom
GotoeSIM Support
· 1 year ago Really appreciate this, Sophia! Love that you were online the moment you landed in Japan. We're here whenever you travel again. – Tom 💜
Viktor B.
United States · May 2025
Honestly better than buying a local SIM at the airport. Topping up was straightforward when I needed more. Highly recommend for any traveller.
Yuki
GotoeSIM Support
· 1 year ago Really appreciate this, Viktor! Thrilled it made staying connected effortless. Wishing you many more connected adventures! – Yuki 💜
Giulia P.
India · May 2025
Saved me a fortune on my holiday. Customer support answered my question quickly.
Ingrid
GotoeSIM Support
· 1 year ago Thank you so much, Giulia! Wonderful to hear it worked smoothly in Japan. — Ingrid, eSIM TopUp Support
Thomas F.
Saudi Arabia · May 2025
Used this on my trip and it worked perfectly. I kept my normal number for calls while using this for data. Would definitely buy again.
Anna
GotoeSIM Support
· 1 year ago Thank you for the kind words, Thomas! Love that you were online the moment you landed in Japan. – Anna, eSIM TopUp Support
Sri D.
Thailand · May 2025
Saved me a fortune on my holiday. Customer support answered my question quickly. Will use eSIM TopUp for my next trip for sure.
Anna
GotoeSIM Support
· 1 year ago So glad to hear this, Sri! Thrilled it made staying connected effortless. Enjoy your journeys! — Anna, eSIM TopUp Support
Hana V.
Portugal · May 2025
Connected the moment I landed. Activation was automatic when I arrived. A must-have for international travel.
Ken
GotoeSIM Support
· 1 year ago Cheers, Hana! So pleased it saved you from roaming bills. Come back anytime! — Ken
Linh S.
Philippines · Apr 2025
No more hunting for a SIM card kiosk on arrival. Data lasted the whole trip with room to spare. Great experience overall.
Priya
GotoeSIM Support
· 1 year ago Thank you so much, Linh! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! – Priya, eSIM TopUp Support
Olivia T.
Germany · Apr 2025
Installed in minutes by scanning the QR code. Activation was automatic when I arrived.
Ingrid
GotoeSIM Support
· 1 year ago Thank you so much, Olivia! So pleased it saved you from roaming bills. Enjoy your journeys! — Ingrid
Grace P.
Brazil · Apr 2025
Great value compared to roaming charges. Activation was automatic when I arrived in Japan. Exactly as described — no surprises.
Sara
GotoeSIM Support
· 1 year ago Thank you for the kind words, Grace! So pleased it saved you from roaming bills. We're here whenever you travel again. — Sara, eSIM TopUp Support
James B.
Poland · Apr 2025
Great value compared to roaming charges. Data lasted the whole trip with room to spare.
Emma
GotoeSIM Support
· 1 year ago So glad to hear this, James! Delighted the speeds worked well for you. Wishing you many more connected adventures! – Emma 💜
Omar L.
Ireland · Apr 2025
First time using an eSIM and it was painless. Setup instructions in the app were clear and simple.
Priya
GotoeSIM Support
· 1 year ago So glad to hear this, Omar! Delighted the speeds worked well for you. — Priya, eSIM TopUp Support
Frequently asked questions
How much does the Japan eSIM cost?
The Japan 20GB 30Days (IIJ) plan costs $12.30 for 20 GB over 30 days, paid once with no hidden fees.
How do I activate my Japan 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.
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.
Comments & questions
Katya K. · 2 months ago
Is 5G supported or just 4G?
Katya V. · 7 months ago
Thanks, installed with no problems on my Samsung.
Beatriz C. · 8 months ago
Is roaming charged extra or is it all included?
Lea B. · 8 months ago
Will this keep my WhatsApp active with my home number?
Kenji R. · 9 months ago
Do I need to install it before I travel or after I arrive?
Zoe V. · 9 months ago
How do I check how much data I have left?
Grace C. · 10 months ago
Great guide, the setup steps were really helpful.
Camila M. · 11 months ago
Can I use it in nearby countries too?
Mateo B. · 11 months ago
Which networks does this connect to?
Beatriz R. · 11 months ago
Does the validity start on purchase or on first use?
Sarah V. · 11 months ago
How long does the QR code take to arrive after payment?
Thomas N. · 1 year ago
Can I top up the same eSIM instead of buying a new one?