Japan eSIM — reviews & details
Japan 20GB 30Days (IIJ) · 20 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Haruto K.
Egypt · Sep 2025
Connected the moment I landed. Signal held up well on trains and in rural areas. Would definitely buy again.
Anna
GotoeSIM Support
· 11 months ago Thank you so much, Haruto! Great to know the setup was quick and easy. We're here whenever you travel again. – Anna, eSIM TopUp Support
Ryan H.
France · Sep 2025
Great value compared to roaming charges. I kept my normal number for calls while using this for data. A must-have for international travel.
Diego
GotoeSIM Support
· 11 months ago Cheers, Ryan! Thrilled it made staying connected effortless. — Diego, eSIM TopUp Support
Ethan V.
France · Sep 2025
Honestly better than buying a local SIM at the airport. The QR code arrived instantly by email. Made staying connected effortless.
Ken
GotoeSIM Support
· 11 months ago So glad to hear this, Ethan! Delighted the speeds worked well for you. Come back anytime! – Ken 💜
Haruto B.
Germany · Sep 2025
First time using an eSIM and it was painless in Japan. Setup instructions in the app were clear and simple.
James
GotoeSIM Support
· 11 months ago Thanks a lot, Haruto! Delighted the speeds worked well for you. Safe travels, and see you on your next trip! – James 💜
Lea P.
Spain · Sep 2025
Honestly better than buying a local SIM at the airport. Ran hotspot to my laptop with no issues.
Laura
GotoeSIM Support
· 11 months ago Thanks for sharing, Lea! Thrilled it made staying connected effortless. – Laura 💜
Pablo V.
South Korea · Aug 2025
Great value compared to roaming charges in Japan. Setup instructions in the app were clear and simple. Telling my friends about this.
Grace
GotoeSIM Support
· 11 months ago Really appreciate this, Pablo! Thrilled it made staying connected effortless. Wishing you many more connected adventures! — Grace, eSIM TopUp Support
Zoe G.
Australia · Aug 2025
Great value compared to roaming charges in Japan. Topping up was straightforward when I needed more. A must-have for international travel.
Ken
GotoeSIM Support
· 11 months ago So glad to hear this, Zoe! Delighted the speeds worked well for you. – Ken 💜
Chloe N.
Vietnam · Aug 2025
Super easy to set up before I flew out. Streaming and video calls worked without buffering. Highly recommend for any traveller.
Priya
GotoeSIM Support
· 11 months ago Thanks for sharing, Chloe! So pleased it saved you from roaming bills. – Priya, eSIM TopUp Support
Somchai L.
Germany · Aug 2025
Used this on my trip and it worked perfectly. Customer support answered my question quickly. Five stars from me.
Diego
GotoeSIM Support
· 11 months ago Really appreciate this, Somchai! So pleased it saved you from roaming bills. — Diego
Budi H.
Turkey · Aug 2025
Exactly what I needed for travelling. Speeds were solid for maps, messaging and browsing. Highly recommend for any traveller.
James
GotoeSIM Support
· 11 months ago Thanks a lot, Budi! Delighted the speeds worked well for you. Wishing you many more connected adventures! — James, eSIM TopUp Support
Grace C.
France · Aug 2025
Installed in minutes by scanning the QR code in Japan. Setup instructions in the app were clear and simple.
Sophie
GotoeSIM Support
· 11 months ago Thank you so much, Grace! Love that you were online the moment you landed in Japan. Come back anytime! — Sophie, eSIM TopUp Support
Ingrid M.
UAE · Aug 2025
Did the job without any drama. Setup instructions in the app were clear and simple. Exactly as described — no surprises.
Emma
GotoeSIM Support
· 11 months ago Thanks a lot, Ingrid! Love that you were online the moment you landed in Japan. Wishing you many more connected adventures! – Emma 💜
Anna S.
Ireland · Aug 2025
Exactly what I needed for travelling. Activation was automatic when I arrived in Japan. Telling my friends about this.
Sara
GotoeSIM Support
· 11 months ago So glad to hear this, Anna! Wonderful to hear it worked smoothly in Japan. We're here whenever you travel again. – Sara, eSIM TopUp Support
Sarah L.
Germany · Aug 2025
Installed in minutes by scanning the QR code. Setup instructions in the app were clear and simple.
Emma
GotoeSIM Support
· 11 months ago Thank you so much, Sarah! Wonderful to hear it worked smoothly in Japan. — Emma
Fatima C.
Vietnam · Aug 2025
Super easy to set up before I flew out. Speeds were solid for maps, messaging and browsing. Would definitely buy again.
Anna
GotoeSIM Support
· 11 months ago Thank you for the kind words, Fatima! Thrilled it made staying connected effortless. – Anna 💜
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?