Japan eSIM — reviews & details
Japan 20GB 30Days (IIJ) · 20 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Fatima W.
Canada · Dec 2025
First time using an eSIM and it was painless in Japan. Setup instructions in the app were clear and simple.
Sara
GotoeSIM Support
· 7 months ago Thank you for the kind words, Fatima! Great to know the setup was quick and easy. Enjoy your journeys! — Sara
Lea R.
South Korea · Dec 2025
First time using an eSIM and it was painless. Setup instructions in the app were clear and simple. Telling my friends about this.
Grace
GotoeSIM Support
· 7 months ago Thank you so much, Lea! Love that you were online the moment you landed in Japan. We're here whenever you travel again. – Grace 💜
Max F.
Brazil · Dec 2025
Did the job without any drama. Coverage was strong even outside the city. Five stars from me.
Anna
GotoeSIM Support
· 7 months ago Thank you for the kind words, Max! Love that you were online the moment you landed in Japan. — Anna, eSIM TopUp Support
Hana B.
Singapore · Dec 2025
Bought it the night before my flight — smooth process. The QR code arrived instantly by email.
Laura
GotoeSIM Support
· 7 months ago Thank you so much, Hana! Love that you were online the moment you landed in Japan. — Laura, eSIM TopUp Support
Max D.
UAE · Dec 2025
Great value compared to roaming charges. Customer support answered my question quickly. Zero regrets.
Laura
GotoeSIM Support
· 7 months ago So glad to hear this, Max! So happy the Japan eSIM kept you connected. Safe travels, and see you on your next trip! — Laura
Hugo T.
New Zealand · Dec 2025
Exactly what I needed for travelling. Activation was automatic when I arrived. Highly recommend for any traveller.
Diego
GotoeSIM Support
· 7 months ago Thanks for sharing, Hugo! Wonderful to hear it worked smoothly in Japan. Safe travels, and see you on your next trip! – Diego, eSIM TopUp Support
Ji-woo C.
Indonesia · Dec 2025
Installed in minutes by scanning the QR code. Customer support answered my question quickly. Zero regrets.
Sara
GotoeSIM Support
· 7 months ago Really appreciate this, Ji-woo! Delighted the speeds worked well for you. We're here whenever you travel again. — Sara, eSIM TopUp Support
Lucia D.
Malaysia · Dec 2025
Honestly better than buying a local SIM at the airport. Setup instructions in the app were clear and simple. A must-have for international travel.
Diego
GotoeSIM Support
· 7 months ago So glad to hear this, Lucia! So happy the Japan eSIM kept you connected. Enjoy your journeys! – Diego, eSIM TopUp Support
Thomas K.
Italy · Dec 2025
Exactly what I needed for travelling. I kept my normal number for calls while using this for data.
Mark
GotoeSIM Support
· 7 months ago Really appreciate this, Thomas! Wonderful to hear it worked smoothly in Japan. Safe travels, and see you on your next trip! – Mark, eSIM TopUp Support
Lucia W.
Turkey · Dec 2025
First time using an eSIM and it was painless. Data lasted the whole trip with room to spare. Five stars from me.
Sophie
GotoeSIM Support
· 7 months ago Thanks a lot, Lucia! So happy the Japan eSIM kept you connected. We're here whenever you travel again. — Sophie
Aisha W.
India · Dec 2025
Used this on my trip and it worked perfectly. Coverage was strong even outside the city. Telling my friends about this.
David
GotoeSIM Support
· 8 months ago Thanks for sharing, Aisha! So pleased it saved you from roaming bills. We're here whenever you travel again. — David
Hugo D.
United States · Dec 2025
Super easy to set up before I flew out. Customer support answered my question quickly. Made staying connected effortless.
Yuki
GotoeSIM Support
· 8 months ago So glad to hear this, Hugo! Love that you were online the moment you landed in Japan. Wishing you many more connected adventures! – Yuki, eSIM TopUp Support
Ananya R.
Portugal · Dec 2025
Honestly better than buying a local SIM at the airport. Ran hotspot to my laptop with no issues. Great experience overall.
Sophie
GotoeSIM Support
· 8 months ago Cheers, Ananya! Wonderful to hear it worked smoothly in Japan. — Sophie
Zoe L.
Singapore · Dec 2025
No more hunting for a SIM card kiosk on arrival. Topping up was straightforward when I needed more. A must-have for international travel.
Ken
GotoeSIM Support
· 8 months ago Thank you so much, Zoe! Love that you were online the moment you landed in Japan. Safe travels, and see you on your next trip! — Ken
Chloe R.
Poland · Dec 2025
No more hunting for a SIM card kiosk on arrival. Signal held up well on trains and in rural areas. Would definitely buy again.
Grace
GotoeSIM Support
· 8 months ago Thanks a lot, Chloe! Love that you were online the moment you landed in Japan. Safe travels, and see you on your next trip! — Grace
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?