Japan eSIM — reviews & details
Japan 20GB 30Days (IIJ) · 20 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Giulia C.
South Korea · Jun 2026
Bought it the night before my flight — smooth process. Activation was automatic when I arrived. Highly recommend for any traveller.
Grace
GotoeSIM Support
· 1 month ago Thank you so much, Giulia! Love that you were online the moment you landed in Japan. – Grace, eSIM TopUp Support
Mateo R.
Canada · Jun 2026
Did the job without any drama. Topping up was straightforward when I needed more.
James
GotoeSIM Support
· 1 month ago So glad to hear this, Mateo! So happy the Japan eSIM kept you connected. We're here whenever you travel again. – James 💜
Min-jun G.
United States · Jun 2026
First time using an eSIM and it was painless. Topping up was straightforward when I needed more. Five stars from me.
Tom
GotoeSIM Support
· 1 month ago Thank you so much, Min-jun! So pleased it saved you from roaming bills. — Tom, eSIM TopUp Support
Grace H.
Vietnam · Jun 2026
Exactly what I needed for travelling. Topping up was straightforward when I needed more. Zero regrets.
Anna
GotoeSIM Support
· 1 month ago Thanks a lot, Grace! Wonderful to hear it worked smoothly in Japan. Come back anytime! — Anna, eSIM TopUp Support
Kenji B.
Australia · Jun 2026
No more hunting for a SIM card kiosk on arrival. Activation was automatic when I arrived. Would definitely buy again.
Anna
GotoeSIM Support
· 1 month ago Thanks for sharing, Kenji! Delighted the speeds worked well for you. Wishing you many more connected adventures! – Anna, eSIM TopUp Support
Kenji D.
Japan · Jun 2026
Super easy to set up before I flew out. Streaming and video calls worked without buffering. Great experience overall.
Anna
GotoeSIM Support
· 1 month ago So glad to hear this, Kenji! Thrilled it made staying connected effortless. Safe travels, and see you on your next trip! — Anna, eSIM TopUp Support
Emma H.
Spain · Jun 2026
Connected the moment I landed. Coverage was strong even outside the city. Will use eSIM TopUp for my next trip for sure.
David
GotoeSIM Support
· 1 month ago Really appreciate this, Emma! Delighted the speeds worked well for you. Come back anytime! – David, eSIM TopUp Support
Hugo N.
Switzerland · Jun 2026
Great value compared to roaming charges. Customer support answered my question quickly.
David
GotoeSIM Support
· 2 months ago Thanks a lot, Hugo! So happy the Japan eSIM kept you connected. Safe travels, and see you on your next trip! — David, eSIM TopUp Support
Olivia P.
Portugal · Jun 2026
First time using an eSIM and it was painless. Ran hotspot to my laptop with no issues. Highly recommend for any traveller.
Ingrid
GotoeSIM Support
· 2 months ago Cheers, Olivia! Wonderful to hear it worked smoothly in Japan. Wishing you many more connected adventures! – Ingrid 💜
Olivia M.
South Korea · Jun 2026
Great value compared to roaming charges. Setup instructions in the app were clear and simple. Would definitely buy again.
Priya
GotoeSIM Support
· 2 months ago Really appreciate this, Olivia! Thrilled it made staying connected effortless. Wishing you many more connected adventures! – Priya 💜
Camila C.
Thailand · Jun 2026
First time using an eSIM and it was painless. Topping up was straightforward when I needed more. Zero regrets.
Grace
GotoeSIM Support
· 2 months ago So glad to hear this, Camila! So happy the Japan eSIM kept you connected. Wishing you many more connected adventures! – Grace, eSIM TopUp Support
Lea B.
Thailand · Jun 2026
Great value compared to roaming charges. Data lasted the whole trip with room to spare. Made staying connected effortless.
Mark
GotoeSIM Support
· 2 months ago So glad to hear this, Lea! Thrilled it made staying connected effortless. — Mark, eSIM TopUp Support
Ryan P.
Brazil · Jun 2026
Used this on my trip and it worked perfectly. Streaming and video calls worked without buffering. Telling my friends about this.
Tom
GotoeSIM Support
· 2 months ago Thanks for sharing, Ryan! So happy the Japan eSIM kept you connected. – Tom, eSIM TopUp Support
Sophia S.
Malaysia · Jun 2026
Super easy to set up before I flew out. Streaming and video calls worked without buffering. A must-have for international travel.
Ingrid
GotoeSIM Support
· 2 months ago Thanks for sharing, Sophia! Wonderful to hear it worked smoothly in Japan. – Ingrid, eSIM TopUp Support
Ananya K.
Poland · May 2026
Saved me a fortune on my holiday. Activation was automatic when I arrived in Japan. Will use eSIM TopUp for my next trip for sure.
Sophie
GotoeSIM Support
· 2 months ago Cheers, Ananya! Great to know the setup was quick and easy. Come back anytime! — Sophie
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?