Frequently Asked Questions

Usually, yes. Installing it before departure means you can connect soon after landing. Keep the eSIM turned off until you arrive, and follow your provider’s activation instructions.

Your phone needs to support eSIM and be carrier-unlocked. Check both before purchasing. Some phones sold in certain countries or through specific carriers may have restrictions.

An eSIM is usually simpler for one traveler with a compatible phone. Pocket Wi-Fi can be useful for groups, laptops, or several devices, but it adds another device to charge and return.

Yes. A data-only eSIM normally does not change your app accounts. Your regular phone number may still receive messages depending on your home carrier and roaming settings.

Check that the eSIM line is turned on, mobile data is assigned to it, data roaming is enabled when required, and airplane mode has been toggled once. Then restart the phone.

Most short-term visitors do not. Data is enough for maps, translation, messaging, reservations, and internet calls. A Japanese number may help for some local services or longer stays.