Japan eSIM — reviews & details
Japan 3GB 30Days · 3 GB · 30 days
620 reviews
Coverage & networks
- Japan NTT docomo 5G Rakuten Mobile 5G KDDI/au 5G SoftBank 5G
Traveller reviews
Min-jun W.
Portugal · Jul 2026
Worked fine but took a little while to connect at first.
David
eSIM TopUp Support
· 2 weeks ago So sorry to hear this, Min-jun. We'd love the chance to make this right. Please contact us at esimtopup.io/support and we'll sort it out. — David, eSIM TopUp Support
Emma B.
Switzerland · Jan 2026
Decent speeds, though slower than I expected in a few spots.
Yuki
eSIM TopUp Support
· 6 months ago Apologies for the trouble, Emma. We'd love the chance to make this right. Please contact us at esimtopup.io/support and we'll sort it out. – Yuki 💜
Haruto N.
Mexico · Nov 2025
Install took me two tries but was fine after that. Coverage was strong even outside the city.
Mark
eSIM TopUp Support
· 9 months ago We're really sorry, Haruto. This isn't the standard we aim for. Reach our team at esimtopup.io/support so we can help right away. — Mark, eSIM TopUp Support
Elena V.
Spain · Jun 2025
Worked fine but took a little while to connect at first. Speeds were solid for maps, messaging and browsing.
Yuki
eSIM TopUp Support
· 1 year ago Apologies for the trouble, Elena. This isn't the standard we aim for. Reach our team at esimtopup.io/support so we can help right away. — Yuki, eSIM TopUp Support
Wei L.
Mexico · Jun 2025
Worked fine but took a little while to connect at first. Ran hotspot to my laptop with no issues.
Sara
eSIM TopUp Support
· 1 year ago So sorry to hear this, Wei. That's not the experience we want for Japan. Reach our team at esimtopup.io/support so we can help right away. – Sara 💜
Hugo D.
Japan · Oct 2024
Good coverage in the city, a bit patchy in remote areas. Ran hotspot to my laptop with no issues.
Emma
eSIM TopUp Support
· 1 year ago So sorry to hear this, Hugo. That's not the experience we want for Japan. Reach our team at esimtopup.io/support so we can help right away. — Emma, eSIM TopUp Support
Arjun D.
Indonesia · Oct 2024
Good coverage in the city, a bit patchy in remote areas.
Ingrid
eSIM TopUp Support
· 1 year ago We're really sorry, Arjun. That's not the experience we want for Japan. Reach our team at esimtopup.io/support so we can help right away. – Ingrid 💜
Emma P.
Netherlands · Oct 2024
Worked fine but took a little while to connect at first. Signal held up well on trains and in rural areas.
Anna
eSIM TopUp Support
· 1 year ago Apologies for the trouble, Emma. This isn't the standard we aim for. Reach our team at esimtopup.io/support so we can help right away. – Anna, eSIM TopUp Support
Frequently asked questions
How much does the Japan eSIM cost?
The Japan 3GB 30Days plan costs $2.70 for 3 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 G. · 2 months ago
Is 5G supported or just 4G?
Pablo C. · 2 months ago
How do I check how much data I have left?
Grace G. · 2 months ago
Can I use this for hotspot/tethering?
Marco C. · 3 months ago
Can I use it in nearby countries too?
Lucas D. · 3 months ago
Great guide, the setup steps were really helpful.
Ingrid F. · 5 months ago
Is roaming charged extra or is it all included?
Pablo N. · 6 months ago
Does the validity start on purchase or on first use?
Olivia N. · 6 months ago
Does this work on an iPhone 13?
Linh T. · 8 months ago
Can I top up the same eSIM instead of buying a new one?
Viktor P. · 9 months ago
Thanks, installed with no problems on my Samsung.
Carlos L. · 9 months ago
Will this keep my WhatsApp active with my home number?
Sri N. · 1 year ago
Which networks does this connect to?