Japan eSIM — reviews & details
Japan 10GB 30Days (IIJ) · 10 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 4G
Traveller reviews
Mei N.
New Zealand · Nov 2025
Decent speeds, though slower than I expected in a few spots. Ran hotspot to my laptop with no issues.
Omar
GotoeSIM Support
· 9 months ago Thank you for taking the time, Mei. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. – Omar, eSIM TopUp Support
Ethan G.
Egypt · Oct 2025
Install took me two tries but was fine after that.
Grace
GotoeSIM Support
· 10 months ago Thank you for taking the time, Ethan. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at esimtopup.io/support. — Grace, eSIM TopUp Support
Pablo C.
Switzerland · Sep 2025
Worked fine but took a little while to connect at first. Coverage was strong even outside the city.
Priya
GotoeSIM Support
· 10 months ago Thanks for the honest feedback, Pablo. Good to hear it did the job, and we're working to make it even better. Reach us anytime at esimtopup.io/support if we can help. – Priya, eSIM TopUp Support
Olivia K.
Singapore · Aug 2025
Worked fine but took a little while to connect at first. Speeds were solid for maps, messaging and browsing.
Tom
GotoeSIM Support
· 11 months ago Thank you for taking the time, Olivia. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. — Tom, eSIM TopUp Support
Ava H.
Poland · Aug 2025
Good coverage in the city, a bit patchy in remote areas.
Mark
GotoeSIM Support
· 11 months ago Appreciate you sharing this, Ava. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. — Mark
Nguyen N.
Poland · Jul 2025
Good coverage in the city, a bit patchy in remote areas.
Omar
GotoeSIM Support
· 1 year ago Thank you for taking the time, Nguyen. Good to hear it did the job, and we're working to make it even better. Reach us anytime at esimtopup.io/support if we can help. — Omar, eSIM TopUp Support
Haruto R.
Japan · May 2025
Worked fine but took a little while to connect at first.
Ingrid
GotoeSIM Support
· 1 year ago Thank you for taking the time, Haruto. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. — Ingrid, eSIM TopUp Support
Nguyen V.
Canada · Mar 2025
Solid overall, just wish there was a bit more data for the price. Setup instructions in the app were clear and simple.
James
GotoeSIM Support
· 1 year ago Thank you for taking the time, Nguyen. We're constantly optimising speeds and coverage across Japan. Reach us anytime at esimtopup.io/support if we can help. – James, eSIM TopUp Support
Budi T.
Mexico · Mar 2025
Good coverage in the city, a bit patchy in remote areas.
Omar
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Budi. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. — Omar, eSIM TopUp Support
Hugo K.
Philippines · Mar 2025
Worked fine but took a little while to connect at first.
Grace
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Hugo. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. – Grace, eSIM TopUp Support
Aisha H.
South Korea · Feb 2025
Install took me two tries but was fine after that. Speeds were solid for maps, messaging and browsing.
Sophie
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Aisha. Glad it mostly worked for you in Japan — we're always improving our coverage. Any questions, our team is at esimtopup.io/support. — Sophie, eSIM TopUp Support
Arjun W.
Brazil · Jan 2025
Install took me two tries but was fine after that. Streaming and video calls worked without buffering.
Tom
GotoeSIM Support
· 1 year ago Thank you for taking the time, Arjun. Glad it mostly worked for you in Japan — we're always improving our coverage. Reach us anytime at esimtopup.io/support if we can help. – Tom 💜
Nguyen V.
Philippines · Dec 2024
Good coverage in the city, a bit patchy in remote areas. Signal held up well on trains and in rural areas.
Anna
GotoeSIM Support
· 1 year ago Thanks for the honest feedback, Nguyen. We're constantly optimising speeds and coverage across Japan. Any questions, our team is at esimtopup.io/support. – Anna, eSIM TopUp Support
Grace F.
Portugal · Dec 2024
Decent speeds, though slower than I expected in a few spots.
David
GotoeSIM Support
· 1 year ago Appreciate you sharing this, Grace. Good to hear it did the job, and we're working to make it even better. Any questions, our team is at esimtopup.io/support. – David 💜
Beatriz C.
United States · Oct 2024
Good coverage in the city, a bit patchy in remote areas. Topping up was straightforward when I needed more.
Mark
GotoeSIM Support
· 1 year ago Thank you for taking the time, Beatriz. Glad it mostly worked for you in Japan — we're always improving our coverage. Reach us anytime at esimtopup.io/support if we can help. — Mark
Frequently asked questions
How much does the Japan eSIM cost?
The Japan 10GB 30Days (IIJ) plan costs $7.05 for 10 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
Pablo R. · 1 week ago
How do I check how much data I have left?
Isabella V. · 3 months ago
Does the validity start on purchase or on first use?
Somchai W. · 3 months ago
Do I need to install it before I travel or after I arrive?
Fatima B. · 4 months ago
Can I use it in nearby countries too?
Hana L. · 6 months ago
Great guide, the setup steps were really helpful.
Beatriz C. · 6 months ago
Will this keep my WhatsApp active with my home number?
Viktor P. · 7 months ago
How long does the QR code take to arrive after payment?
Mateo D. · 7 months ago
Can I top up the same eSIM instead of buying a new one?
Pablo G. · 7 months ago
Which networks does this connect to?
Ryan G. · 10 months ago
Is roaming charged extra or is it all included?
Nadia B. · 1 year ago
Is 5G supported or just 4G?
Sven G. · 1 year ago
Does this work on an iPhone 13?