eSIM for Japan
A Roameo eSIM gets you online the second you land at Narita, Haneda, Kansai or any Japanese airport — no hunting for a SIM kiosk, no pocket Wi-Fi rental desk. Install it before you fly and data switches on automatically on arrival, with 4G/5G coverage across every city, shinkansen route and most of rural Japan.
- Capital
- Tokyo
- Currency
- JPY (¥)
- Languages
- Japanese
- Time zone
- GMT+9
- Calling code
- +81
- Voltage
- 100V
- Plug
- Type A / B
Pick your plan
15 plans for Japan.
9 options
Japan 3GB 15Days
7 days2 plans
30 days5 plans
Japan 3GB 30Days
taxes included
View planJapan 5GB 30Days (IIJ)
taxes included
View planJapan 10GB 30Days
taxes included
View planJapan 20GB 30Days (IIJ)
taxes included
View planJapan 50GB 30Days
taxes included
View planAlso check
Visiting more than one country? A regional or global plan covers them all on a single eSIM.
Travelling to Japan
Roameo's Japan eSIM rides on tier-1 networks — primarily NTT Docomo and SoftBank/KDDI (au) — so you get the same towers locals use, including dense 5G across Tokyo, Osaka, Kyoto and Fukuoka and reliable LTE along the Tokaido and Tohoku shinkansen lines. Coverage reaches rural Hokkaido, the Japanese Alps and the Okinawa islands, though deep-mountain and remote-island pockets can drop to slower speeds. Japan runs data-only travel eSIMs: keep your home SIM in slot one for calls and SMS, and route data through Roameo. There's no APN fiddling — the profile self-configures. Tethering/hotspot works on every plan, so you can share data with a laptop or a travel companion.