Japan Sim Cards
Best SIM card for Japan
Sold Out
Japan 5-day Docomo IIJ 4G SIM Card 5GB
₩1977/ day
₩14,372
₩9,881
5Day(s)
Docomo IIJ
First 5GB at 4G and reduced to not below 256kbps thereafter
Plug and use
Sold Out
Japan 7-day Docomo IIJ 4G SIM Card 10GB
₩1746/ day
₩17,606
₩12,216
7Day(s)
Docomo IIJ
First 10GB at 4G and reduced to not below 256kbps thereafter
Plug and use
Sold Out
Japan 8-day Docomo IIJ 4G SIM Card 10GB
₩1685/ day
₩18,683
₩13,474
8Day(s)
Docomo IIJ
First 10GB at 4G and reduced to not below 256kbps thereafter
Plug and use
Sold Out
Japan 8-day Softbank 4G SIM Card with Calls
₩1752/ day
₩24,791
₩14,013
(322)
8Day(s)
Softbank
First 6GB at 4G speed, and reduced to not below 256kbps thereafter
Plug and use
Phone Call
Sold Out
Japan 10-day Docomo IIJ 4G SIM Card 10GB (Activate before 2025.12.30)
₩1438/ day
₩24,791
₩14,372
10Day(s)
Docomo IIJ
First 10GB at 4G and reduced to not below 256kbps thereafter
Plug and use
Sold Out
Japan 10-day Docomo IIJ 4G SIM Card 20GB (Activate before 2025.12.20)
₩1761/ day
₩30,181
₩17,606
10Day(s)
Docomo IIJ
First 20GB at 4G and reduced to not below 256kbps thereafter
Plug and use
Sold Out
Japan 15-day Docomo IIJ 4G SIM Card 10GB
₩1114/ day
₩26,588
₩16,707
15Day(s)
Docomo IIJ
First 10GB at 4G and reduced to not below 256kbps thereafter
Plug and use
Sold Out
Japan 15-day Docomo IIJ 4G SIM Card 20GB
₩1378/ day
₩33,774
₩20,660
15Day(s)
Docomo IIJ
First 20GB at 4G and reduced to not below 256kbps thereafter
Plug and use
HyperAir is an intelligent travel platform to your liking, offering the most suitable and value-for-money travel solution, so that you can travel smarter, anywhere.
Travel Agent Licence Number：
Klook：354005
KKday：353679
Trip.com：352367
Holimood：354248
Travel Expert：353969
Wing On Travel：350074
Contact Us
Entrepreneurship Centre, Level 3, Cyberport 3, Hong Kong
Download Now
© 2026 HyperAir Incorporation Ltd.