Japan eSIM — reviews & details
Japan 20GB 30Days (IIJ) · 20 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Somchai D.
Portugal · Aug 2026
Exactly what I needed for travelling. Coverage was strong even outside the city. Made staying connected effortless.
James
GotoeSIM Support
· 4 days ago Thanks for sharing, Somchai! Delighted the speeds worked well for you. We're here whenever you travel again. – James 💜
Kenji W.
Switzerland · Aug 2026
First time using an eSIM and it was painless in Japan. Ran hotspot to my laptop with no issues. Five stars from me.
Ken
GotoeSIM Support
· 5 days ago So glad to hear this, Kenji! Love that you were online the moment you landed in Japan. Safe travels, and see you on your next trip! — Ken, eSIM TopUp Support
Haruto T.
Australia · Aug 2026
Saved me a fortune on my holiday. Coverage was strong even outside the city.
Ken
GotoeSIM Support
· 1 week ago So glad to hear this, Haruto! Love that you were online the moment you landed in Japan. Come back anytime! — Ken
Thomas D.
United Kingdom · Jul 2026
Did the job without any drama. Data lasted the whole trip with room to spare. Exactly as described — no surprises.
Mark
GotoeSIM Support
· 1 week ago So glad to hear this, Thomas! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! – Mark 💜
Kenji C.
Spain · Jul 2026
Exactly what I needed for travelling. Activation was automatic when I arrived. Five stars from me.
Yuki
GotoeSIM Support
· 2 weeks ago Thank you so much, Kenji! Wonderful to hear it worked smoothly in Japan. Enjoy your journeys! — Yuki, eSIM TopUp Support
Nguyen P.
Japan · Jul 2026
Exactly what I needed for travelling. Speeds were solid for maps, messaging and browsing.
Tom
GotoeSIM Support
· 2 weeks ago Thank you for the kind words, Nguyen! So pleased it saved you from roaming bills. – Tom, eSIM TopUp Support
Noah W.
Spain · Jul 2026
Did the job without any drama. Streaming and video calls worked without buffering. Exactly as described — no surprises.
Diego
GotoeSIM Support
· 2 weeks ago Really appreciate this, Noah! Thrilled it made staying connected effortless. — Diego
Lucia T.
Egypt · Jul 2026
Did the job without any drama. Coverage was strong even outside the city. Would definitely buy again.
Priya
GotoeSIM Support
· 2 weeks ago Thanks for sharing, Lucia! Wonderful to hear it worked smoothly in Japan. We're here whenever you travel again. – Priya 💜
Hugo G.
Mexico · Jul 2026
Connected the moment I landed in Japan. Customer support answered my question quickly. Highly recommend for any traveller.
Yuki
GotoeSIM Support
· 2 weeks ago Really appreciate this, Hugo! Thrilled it made staying connected effortless. Come back anytime! – Yuki 💜
Andre D.
Ireland · Jul 2026
Saved me a fortune on my holiday in Japan. Topping up was straightforward when I needed more.
Ingrid
GotoeSIM Support
· 3 weeks ago Cheers, Andre! Delighted the speeds worked well for you. Enjoy your journeys! — Ingrid, eSIM TopUp Support
Linh V.
South Korea · Jul 2026
Great value compared to roaming charges. Signal held up well on trains and in rural areas.
Omar
GotoeSIM Support
· 3 weeks ago Really appreciate this, Linh! Delighted the speeds worked well for you. Wishing you many more connected adventures! – Omar 💜
James N.
India · Jul 2026
Installed in minutes by scanning the QR code. Ran hotspot to my laptop with no issues. Highly recommend for any traveller.
Ingrid
GotoeSIM Support
· 3 weeks ago Thank you for the kind words, James! Love that you were online the moment you landed in Japan. — Ingrid, eSIM TopUp Support
Ji-woo W.
Turkey · Jul 2026
Honestly better than buying a local SIM at the airport in Japan. Ran hotspot to my laptop with no issues. A must-have for international travel.
Ken
GotoeSIM Support
· 4 weeks ago Thank you for the kind words, Ji-woo! Great to know the setup was quick and easy. Wishing you many more connected adventures! – Ken, eSIM TopUp Support
Mateo F.
Egypt · Jul 2026
Used this on my trip and it worked perfectly. Activation was automatic when I arrived in Japan. Made staying connected effortless.
Laura
GotoeSIM Support
· 4 weeks ago Thanks for sharing, Mateo! Love that you were online the moment you landed in Japan. — Laura
Pablo S.
Malaysia · Jul 2026
Great value compared to roaming charges. Streaming and video calls worked without buffering. A must-have for international travel.
Laura
GotoeSIM Support
· 4 weeks ago Really appreciate this, Pablo! So happy the Japan eSIM kept you connected. — Laura, 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?