Japan eSIM — reviews & details
Japan 20GB 30Days (IIJ) · 20 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Emma N.
Australia · Jun 2025
First time using an eSIM and it was painless in Japan. Setup instructions in the app were clear and simple.
David
GotoeSIM Support
· 1 year ago Thanks a lot, Emma! Wonderful to hear it worked smoothly in Japan. Wishing you many more connected adventures! – David, eSIM TopUp Support
Emma V.
Australia · Jun 2025
Saved me a fortune on my holiday in Japan. I kept my normal number for calls while using this for data. Zero regrets.
David
GotoeSIM Support
· 1 year ago Thanks for sharing, Emma! So happy the Japan eSIM kept you connected. Enjoy your journeys! – David 💜
Ravi V.
Italy · Jun 2025
First time using an eSIM and it was painless. Coverage was strong even outside the city. Will use eSIM TopUp for my next trip for sure.
Diego
GotoeSIM Support
· 1 year ago Thanks for sharing, Ravi! Great to know the setup was quick and easy. Wishing you many more connected adventures! – Diego, eSIM TopUp Support
Louis H.
Sweden · Jun 2025
Saved me a fortune on my holiday. Setup instructions in the app were clear and simple. Will use eSIM TopUp for my next trip for sure.
David
GotoeSIM Support
· 1 year ago Thank you so much, Louis! Wonderful to hear it worked smoothly in Japan. – David, eSIM TopUp Support
Ananya D.
Saudi Arabia · Jun 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.
Yuki
GotoeSIM Support
· 1 year ago Cheers, Ananya! So pleased it saved you from roaming bills. Enjoy your journeys! – Yuki, eSIM TopUp Support
Sarah B.
Japan · May 2025
Honestly better than buying a local SIM at the airport. The QR code arrived instantly by email. Will use eSIM TopUp for my next trip for sure.
Tom
GotoeSIM Support
· 1 year ago Thank you so much, Sarah! Great to know the setup was quick and easy. Safe travels, and see you on your next trip! – Tom, eSIM TopUp Support
Grace N.
Ireland · May 2025
Did the job without any drama. Setup instructions in the app were clear and simple. Telling my friends about this.
Grace
GotoeSIM Support
· 1 year ago Thanks for sharing, Grace! So pleased it saved you from roaming bills. Enjoy your journeys! – Grace, eSIM TopUp Support
Mohammed N.
UAE · May 2025
Used this on my trip and it worked perfectly. Activation was automatic when I arrived.
Diego
GotoeSIM Support
· 1 year ago So glad to hear this, Mohammed! So happy the Japan eSIM kept you connected. — Diego, eSIM TopUp Support
Linh S.
Poland · May 2025
Bought it the night before my flight — smooth process. I kept my normal number for calls while using this for data. Exactly as described — no surprises.
Anna
GotoeSIM Support
· 1 year ago Thanks a lot, Linh! So pleased it saved you from roaming bills. Enjoy your journeys! — Anna, eSIM TopUp Support
Mei W.
Sweden · May 2025
Did the job without any drama. Setup instructions in the app were clear and simple.
Laura
GotoeSIM Support
· 1 year ago Thanks a lot, Mei! Wonderful to hear it worked smoothly in Japan. Wishing you many more connected adventures! — Laura, eSIM TopUp Support
Beatriz F.
Netherlands · May 2025
Installed in minutes by scanning the QR code. Setup instructions in the app were clear and simple. Five stars from me.
Laura
GotoeSIM Support
· 1 year ago Thank you so much, Beatriz! Delighted the speeds worked well for you. – Laura 💜
Liam M.
Turkey · May 2025
First time using an eSIM and it was painless in Japan. Streaming and video calls worked without buffering.
Anna
GotoeSIM Support
· 1 year ago Thanks for sharing, Liam! Thrilled it made staying connected effortless. – Anna, eSIM TopUp Support
Noah D.
Mexico · May 2025
Connected the moment I landed. Topping up was straightforward when I needed more.
Yuki
GotoeSIM Support
· 1 year ago Thank you so much, Noah! Delighted the speeds worked well for you. Enjoy your journeys! — Yuki
Mohammed K.
South Korea · May 2025
Honestly better than buying a local SIM at the airport in Japan. Setup instructions in the app were clear and simple.
Grace
GotoeSIM Support
· 1 year ago Thank you for the kind words, Mohammed! So pleased it saved you from roaming bills. – Grace, eSIM TopUp Support
Arjun N.
Saudi Arabia · May 2025
Did the job without any drama. Coverage was strong even outside the city. A must-have for international travel.
Ingrid
GotoeSIM Support
· 1 year ago Thanks for sharing, Arjun! Great to know the setup was quick and easy. – Ingrid 💜
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?