You don't need a local contract, an ID check or a shop visit. A JamboSim Japan eSIM connects to KDDI's network the moment you land: buy it online, scan the QR once, from $4.50 and with no roaming bills.
KDDI is a major Japan mobile operator, with strong coverage across cities and popular travel destinations.
When you activate a JamboSim Japan eSIM, your phone connects to KDDI (or another supported local network) the moment you arrive, no app install, no manual APN setup. You keep your regular number on WhatsApp and iMessage while data runs on the local network.
KDDI operates a modern 5G network across Japan's major cities, with 4G LTE everywhere else.
Buy now, scan once, your Japan eSIM activates automatically when you land.
Tested on the routes travellers actually use, airports, hotels, transit hubs and tourist districts.
Your eSIM picks KDDI automatically where available, and falls back to other supported networks seamlessly.
Yes, every iPhone XS and newer supports eSIM and KDDI's network bands in Japan. Install the JamboSim eSIM before you fly and it activates automatically on arrival.
Yes. Our Japan eSIMs are configured to use KDDI where its signal is available, and fall back to other supported local networks automatically if coverage is weaker.
Yes. All JamboSim Japan eSIMs support hotspot so you can share your connection with a laptop, tablet or travel companion without extra fees.