Japan eSIM — reviews & details
Japan 20GB 30Days (IIJ) · 20 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Priya K.
Saudi Arabia · Aug 2025
Installed in minutes by scanning the QR code in Japan. Customer support answered my question quickly. Exactly as described — no surprises.
David
GotoeSIM Support
· 11 months ago Thank you so much, Priya! Thrilled it made staying connected effortless. Enjoy your journeys! — David, eSIM TopUp Support
Ryan S.
Thailand · Aug 2025
Honestly better than buying a local SIM at the airport in Japan. Topping up was straightforward when I needed more. Telling my friends about this.
Grace
GotoeSIM Support
· 11 months ago So glad to hear this, Ryan! So pleased it saved you from roaming bills. We're here whenever you travel again. — Grace
Ji-woo R.
Canada · Aug 2025
Exactly what I needed for travelling. I kept my normal number for calls while using this for data. Would definitely buy again.
Sophie
GotoeSIM Support
· 11 months ago Thank you for the kind words, Ji-woo! Wonderful to hear it worked smoothly in Japan. Enjoy your journeys! – Sophie, eSIM TopUp Support
Min-jun S.
Mexico · Aug 2025
Bought it the night before my flight — smooth process. The QR code arrived instantly by email. A must-have for international travel.
Sara
GotoeSIM Support
· 11 months ago Thank you for the kind words, Min-jun! Thrilled it made staying connected effortless. Enjoy your journeys! – Sara, eSIM TopUp Support
Ava T.
Philippines · Aug 2025
Honestly better than buying a local SIM at the airport. Activation was automatic when I arrived. A must-have for international travel.
Priya
GotoeSIM Support
· 11 months ago Really appreciate this, Ava! Great to know the setup was quick and easy. Wishing you many more connected adventures! — Priya, eSIM TopUp Support
Grace P.
Singapore · Aug 2025
Exactly what I needed for travelling in Japan. Customer support answered my question quickly. Highly recommend for any traveller.
Tom
GotoeSIM Support
· 1 year ago Thank you for the kind words, Grace! Love that you were online the moment you landed in Japan. – Tom 💜
Sri N.
Italy · Aug 2025
Honestly better than buying a local SIM at the airport. Data lasted the whole trip with room to spare.
Priya
GotoeSIM Support
· 1 year ago Thank you so much, Sri! Wonderful to hear it worked smoothly in Japan. Come back anytime! — Priya
Sri B.
Philippines · Aug 2025
Great value compared to roaming charges. Customer support answered my question quickly.
Ingrid
GotoeSIM Support
· 1 year ago Thanks for sharing, Sri! Wonderful to hear it worked smoothly in Japan. Safe travels, and see you on your next trip! – Ingrid 💜
Marco M.
Mexico · Aug 2025
Great value compared to roaming charges. Signal held up well on trains and in rural areas. Will use eSIM TopUp for my next trip for sure.
Diego
GotoeSIM Support
· 1 year ago Cheers, Marco! Great to know the setup was quick and easy. We're here whenever you travel again. — Diego, eSIM TopUp Support
Camila V.
France · Aug 2025
Saved me a fortune on my holiday in Japan. Setup instructions in the app were clear and simple.
Omar
GotoeSIM Support
· 1 year ago Cheers, Camila! So pleased it saved you from roaming bills. Come back anytime! – Omar, eSIM TopUp Support
Camila R.
Turkey · Aug 2025
Honestly better than buying a local SIM at the airport. I kept my normal number for calls while using this for data. Exactly as described — no surprises.
David
GotoeSIM Support
· 1 year ago Thank you so much, Camila! Great to know the setup was quick and easy. Enjoy your journeys! — David, eSIM TopUp Support
Sarah K.
Japan · Aug 2025
Honestly better than buying a local SIM at the airport. Topping up was straightforward when I needed more. Zero regrets.
Omar
GotoeSIM Support
· 1 year ago Thank you for the kind words, Sarah! Love that you were online the moment you landed in Japan. Come back anytime! – Omar, eSIM TopUp Support
Haruto K.
Brazil · Aug 2025
Bought it the night before my flight — smooth process. Streaming and video calls worked without buffering.
Diego
GotoeSIM Support
· 1 year ago Thank you for the kind words, Haruto! Wonderful to hear it worked smoothly in Japan. — Diego
James B.
Mexico · Aug 2025
Saved me a fortune on my holiday in Japan. The QR code arrived instantly by email. Exactly as described — no surprises.
Omar
GotoeSIM Support
· 1 year ago Really appreciate this, James! Delighted the speeds worked well for you. Enjoy your journeys! – Omar, eSIM TopUp Support
Sven C.
Sweden · Jul 2025
Great value compared to roaming charges in Japan. I kept my normal number for calls while using this for data.
Ken
GotoeSIM Support
· 1 year ago Thank you so much, Sven! So pleased it saved you from roaming bills. We're here whenever you travel again. – Ken 💜
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?