Japan eSIM — reviews & details
Japan 20GB 30Days (IIJ) · 20 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Sofia G.
Canada · Aug 2025
Bought it the night before my flight — smooth process in Japan. Streaming and video calls worked without buffering. Great experience overall.
Tom
GotoeSIM Support
· 1 year ago Thank you for the kind words, Sofia! Great to know the setup was quick and easy. – Tom 💜
Arjun D.
Italy · Aug 2025
First time using an eSIM and it was painless. Customer support answered my question quickly. Highly recommend for any traveller.
Grace
GotoeSIM Support
· 1 year ago Thank you for the kind words, Arjun! Thrilled it made staying connected effortless. Wishing you many more connected adventures! — Grace, eSIM TopUp Support
Daniel P.
Ireland · Aug 2025
Connected the moment I landed. Coverage was strong even outside the city. Telling my friends about this.
Sophie
GotoeSIM Support
· 1 year ago Thanks a lot, Daniel! Wonderful to hear it worked smoothly in Japan. We're here whenever you travel again. — Sophie
Arjun T.
Saudi Arabia · Aug 2025
Did the job without any drama. Speeds were solid for maps, messaging and browsing. Made staying connected effortless.
Laura
GotoeSIM Support
· 1 year ago Cheers, Arjun! Great to know the setup was quick and easy. We're here whenever you travel again. — Laura
Mateo M.
Philippines · Jul 2025
Great value compared to roaming charges. The QR code arrived instantly by email.
Tom
GotoeSIM Support
· 1 year ago Thanks a lot, Mateo! Great to know the setup was quick and easy. — Tom
James H.
Portugal · Jul 2025
Connected the moment I landed. Streaming and video calls worked without buffering. A must-have for international travel.
Diego
GotoeSIM Support
· 1 year ago Thank you so much, James! Love that you were online the moment you landed in Japan. Enjoy your journeys! – Diego, eSIM TopUp Support
James R.
Brazil · Jul 2025
Great value compared to roaming charges. Customer support answered my question quickly. A must-have for international travel.
Laura
GotoeSIM Support
· 1 year ago Cheers, James! Delighted the speeds worked well for you. Enjoy your journeys! — Laura
Ryan B.
Switzerland · Jul 2025
Great value compared to roaming charges. Setup instructions in the app were clear and simple. Made staying connected effortless.
Laura
GotoeSIM Support
· 1 year ago Cheers, Ryan! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! – Laura, eSIM TopUp Support
Ingrid B.
Singapore · Jul 2025
Connected the moment I landed. 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, Ingrid! Love that you were online the moment you landed in Japan. We're here whenever you travel again. – Diego, eSIM TopUp Support
Aisha S.
Saudi Arabia · Jul 2025
Bought it the night before my flight — smooth process in Japan. Signal held up well on trains and in rural areas. A must-have for international travel.
Priya
GotoeSIM Support
· 1 year ago Cheers, Aisha! So pleased it saved you from roaming bills. Wishing you many more connected adventures! — Priya
Diego S.
Australia · Jul 2025
Honestly better than buying a local SIM at the airport. Activation was automatic when I arrived. Would definitely buy again.
Sara
GotoeSIM Support
· 1 year ago Thanks a lot, Diego! Delighted the speeds worked well for you. Wishing you many more connected adventures! – Sara 💜
Nguyen S.
Vietnam · Jun 2025
Saved me a fortune on my holiday in Japan. Data lasted the whole trip with room to spare. A must-have for international travel.
Omar
GotoeSIM Support
· 1 year ago Thank you so much, Nguyen! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! – Omar, eSIM TopUp Support
Somchai N.
Sweden · Jun 2025
Saved me a fortune on my holiday. Signal held up well on trains and in rural areas.
Diego
GotoeSIM Support
· 1 year ago Really appreciate this, Somchai! So pleased it saved you from roaming bills. Come back anytime! — Diego
Hana G.
Mexico · Jun 2025
Connected the moment I landed. Setup instructions in the app were clear and simple. Will use eSIM TopUp for my next trip for sure.
Laura
GotoeSIM Support
· 1 year ago Thanks for sharing, Hana! So happy the Japan eSIM kept you connected. — Laura
James M.
Canada · Jun 2025
Connected the moment I landed. Data lasted the whole trip with room to spare. Highly recommend for any traveller.
David
GotoeSIM Support
· 1 year ago Thanks for sharing, James! So pleased it saved you from roaming bills. Enjoy your journeys! – David 💜
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?