Japan eSIM — reviews & details
Japan 20GB 30Days (IIJ) · 20 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Katya H.
UAE · Aug 2026
First time using an eSIM and it was painless in Japan. Ran hotspot to my laptop with no issues. Would definitely buy again.
Sophie
GotoeSIM Support
· 1 week ago Cheers, Katya! Wonderful to hear it worked smoothly in Japan. – Sophie, eSIM TopUp Support
Lucia W.
Poland · Aug 2026
Connected the moment I landed. Ran hotspot to my laptop with no issues.
Diego
GotoeSIM Support
· 1 week ago Thank you for the kind words, Lucia! Love that you were online the moment you landed in Japan. Enjoy your journeys! – Diego, eSIM TopUp Support
Daniel P.
United Kingdom · Jul 2026
Exactly what I needed for travelling. The QR code arrived instantly by email.
Diego
GotoeSIM Support
· 2 weeks ago Really appreciate this, Daniel! Love that you were online the moment you landed in Japan. We're here whenever you travel again. – Diego, eSIM TopUp Support
Thomas B.
Indonesia · Jul 2026
Used this on my trip and it worked perfectly in Japan. Streaming and video calls worked without buffering. Five stars from me.
Yuki
GotoeSIM Support
· 3 weeks ago Thanks for sharing, Thomas! Delighted the speeds worked well for you. Safe travels, and see you on your next trip! – Yuki, eSIM TopUp Support
Viktor M.
Spain · Jul 2026
Honestly better than buying a local SIM at the airport. Signal held up well on trains and in rural areas.
James
GotoeSIM Support
· 4 weeks ago Thanks for sharing, Viktor! Wonderful to hear it worked smoothly in Japan. Wishing you many more connected adventures! — James
Omar N.
Sweden · Jul 2026
Great value compared to roaming charges in Japan. Ran hotspot to my laptop with no issues. Five stars from me.
James
GotoeSIM Support
· 1 month ago Thanks for sharing, Omar! So happy the Japan eSIM kept you connected. – James 💜
Grace V.
Malaysia · Jul 2026
Super easy to set up before I flew out. The QR code arrived instantly by email. Highly recommend for any traveller.
David
GotoeSIM Support
· 1 month ago Cheers, Grace! So happy the Japan eSIM kept you connected. — David, eSIM TopUp Support
Pablo V.
New Zealand · Jun 2026
Did the job without any drama. Ran hotspot to my laptop with no issues.
Emma
GotoeSIM Support
· 1 month ago So glad to hear this, Pablo! Love that you were online the moment you landed in Japan. Come back anytime! – Emma 💜
Emma H.
Philippines · Jun 2026
Great value compared to roaming charges in Japan. Speeds were solid for maps, messaging and browsing. Zero regrets.
Ingrid
GotoeSIM Support
· 1 month ago Thank you for the kind words, Emma! Thrilled it made staying connected effortless. Wishing you many more connected adventures! – Ingrid, eSIM TopUp Support
Sophia K.
Australia · Jun 2026
Bought it the night before my flight — smooth process in Japan. I kept my normal number for calls while using this for data.
Laura
GotoeSIM Support
· 2 months ago Thanks for sharing, Sophia! Thrilled it made staying connected effortless. – Laura 💜
Andre W.
Egypt · Jun 2026
Super easy to set up before I flew out. Setup instructions in the app were clear and simple. Made staying connected effortless.
David
GotoeSIM Support
· 2 months ago Thank you for the kind words, Andre! So pleased it saved you from roaming bills. Enjoy your journeys! – David, eSIM TopUp Support
Daniel K.
France · Jun 2026
No more hunting for a SIM card kiosk on arrival. Streaming and video calls worked without buffering. Exactly as described — no surprises.
Tom
GotoeSIM Support
· 2 months ago Cheers, Daniel! Great to know the setup was quick and easy. We're here whenever you travel again. – Tom, eSIM TopUp Support
Sven S.
Germany · May 2026
Connected the moment I landed in Japan. Signal held up well on trains and in rural areas.
Laura
GotoeSIM Support
· 2 months ago Thanks a lot, Sven! Delighted the speeds worked well for you. – Laura, eSIM TopUp Support
Sofia S.
United Kingdom · May 2026
First time using an eSIM and it was painless. Signal held up well on trains and in rural areas. Great experience overall.
Ken
GotoeSIM Support
· 2 months ago Thanks a lot, Sofia! So happy the Japan eSIM kept you connected. — Ken
Ingrid R.
Brazil · May 2026
Connected the moment I landed. Ran hotspot to my laptop with no issues. Great experience overall.
Diego
GotoeSIM Support
· 2 months ago Thanks for sharing, Ingrid! So pleased it saved you from roaming bills. Wishing you many more connected adventures! – Diego, 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?