Japan eSIM — reviews & details
Japan 20GB 30Days (IIJ) · 20 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Isabella W.
Brazil · Oct 2025
Exactly what I needed for travelling. Customer support answered my question quickly. Will use eSIM TopUp for my next trip for sure.
Ken
GotoeSIM Support
· 9 months ago Cheers, Isabella! Great to know the setup was quick and easy. – Ken, eSIM TopUp Support
Nadia C.
France · Oct 2025
Did the job without any drama. Customer support answered my question quickly. Made staying connected effortless.
Priya
GotoeSIM Support
· 9 months ago So glad to hear this, Nadia! Wonderful to hear it worked smoothly in Japan. – Priya, eSIM TopUp Support
Aisha D.
South Korea · Oct 2025
Bought it the night before my flight — smooth process. Signal held up well on trains and in rural areas. Zero regrets.
Tom
GotoeSIM Support
· 10 months ago Thank you for the kind words, Aisha! Great to know the setup was quick and easy. We're here whenever you travel again. — Tom
Ingrid H.
Netherlands · Oct 2025
Great value compared to roaming charges. Ran hotspot to my laptop with no issues.
Ken
GotoeSIM Support
· 10 months ago Thanks for sharing, Ingrid! Love that you were online the moment you landed in Japan. – Ken 💜
Somchai N.
Sweden · Sep 2025
Connected the moment I landed. Topping up was straightforward when I needed more. Highly recommend for any traveller.
Grace
GotoeSIM Support
· 10 months ago Thank you for the kind words, Somchai! Love that you were online the moment you landed in Japan. Safe travels, and see you on your next trip! – Grace, eSIM TopUp Support
Chloe D.
United States · Sep 2025
Connected the moment I landed. Customer support answered my question quickly.
Omar
GotoeSIM Support
· 10 months ago Thanks for sharing, Chloe! Love that you were online the moment you landed in Japan. Safe travels, and see you on your next trip! – Omar, eSIM TopUp Support
Carlos C.
United Kingdom · Sep 2025
First time using an eSIM and it was painless. Setup instructions in the app were clear and simple. A must-have for international travel.
Priya
GotoeSIM Support
· 10 months ago Really appreciate this, Carlos! Love that you were online the moment you landed in Japan. Come back anytime! – Priya, eSIM TopUp Support
Daniel R.
Indonesia · Sep 2025
Honestly better than buying a local SIM at the airport. Customer support answered my question quickly. Exactly as described — no surprises.
Sophie
GotoeSIM Support
· 11 months ago Thanks a lot, Daniel! So pleased it saved you from roaming bills. Come back anytime! — Sophie
Louis W.
Thailand · Sep 2025
Bought it the night before my flight — smooth process. Coverage was strong even outside the city.
Ken
GotoeSIM Support
· 11 months ago Thank you so much, Louis! Wonderful to hear it worked smoothly in Japan. Come back anytime! — Ken, eSIM TopUp Support
James L.
Egypt · Aug 2025
Saved me a fortune on my holiday. I kept my normal number for calls while using this for data. Five stars from me.
James
GotoeSIM Support
· 11 months ago Thank you for the kind words, James! Delighted the speeds worked well for you. Come back anytime! — James, eSIM TopUp Support
Kenji S.
Vietnam · Aug 2025
Super easy to set up before I flew out in Japan. Topping up was straightforward when I needed more. Made staying connected effortless.
Sara
GotoeSIM Support
· 11 months ago Thanks a lot, Kenji! Thrilled it made staying connected effortless. — Sara, eSIM TopUp Support
Isabella T.
Singapore · Aug 2025
No more hunting for a SIM card kiosk on arrival in Japan. Setup instructions in the app were clear and simple. Would definitely buy again.
Grace
GotoeSIM Support
· 11 months ago Thanks a lot, Isabella! So pleased it saved you from roaming bills. Safe travels, and see you on your next trip! — Grace, eSIM TopUp Support
Fatima V.
Turkey · Aug 2025
Connected the moment I landed. The QR code arrived instantly by email. Zero regrets.
Anna
GotoeSIM Support
· 11 months ago Really appreciate this, Fatima! So happy the Japan eSIM kept you connected. Safe travels, and see you on your next trip! — Anna, eSIM TopUp Support
Giulia W.
Poland · Aug 2025
First time using an eSIM and it was painless. I kept my normal number for calls while using this for data.
Priya
GotoeSIM Support
· 1 year ago Thanks a lot, Giulia! Thrilled it made staying connected effortless. – Priya 💜
Sofia B.
New Zealand · Aug 2025
No more hunting for a SIM card kiosk on arrival. Activation was automatic when I arrived.
Sara
GotoeSIM Support
· 1 year ago Thank you so much, Sofia! Thrilled it made staying connected effortless. We're here whenever you travel again. – Sara, 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?