Airalo
Prepaid travel eSIMs you can install before you fly, so you have data the moment you land.
Japan eSIM plans
Guide 02
Think of it in two stages: a bridge that works before you have any Japanese paperwork, and a longer-term plan once you do.
A prepaid travel eSIM installs on your phone before you leave home. Many are data-only, with no Japanese phone number, which is fine for maps, translation and messaging apps in your first days.
Prepaid travel eSIMs you can install before you fly, so you have data the moment you land.
Japan eSIM plansOnce you've registered your address, look at plans aimed at foreign residents. Before you sign up, check three things: whether you get a Japanese phone number, what ID and payment method the provider accepts, and the minimum contract length.
Phone and internet plans built for foreign residents, with English support.
See Sakura Mobile plansJapanese SIM cards and phone numbers aimed at visitors and new arrivals.
See Mobal plans