Japan eSIM

Match the plan to how you use data rather than picking the cheapest. The 100 MB and 500 MB data plans run 7 days and fit occasional lookups; constant maps, directions and video will drain them in hours. For a city trip, compare 3 GB over 15 days at €7.55 with 10 GB over 30 days at €24.75. The 3 GB allowance carries the same price for 7, 15 or 30 days, so the longer validity is free at that tier; take the duration you need. A long stay can use 50 GB over 180 days for €123.07, shared across the full period.

Listed networks: NTT Docomo Japan, SoftBank Japan. Connects to 4G/5G where the network offers it. Speeds and signal vary with your phone, location and network conditions.

An eSIM is a virtual SIM card you install digitally rather than a physical eSIM card you insert. Confirm your exact model supports eSIM and is network unlocked, since regional variants and eSIM features differ. On an iPhone, which runs iOS, look for an Add eSIM option in mobile settings and 'No SIM Restrictions' under Settings > General > About. On Android, check your manufacturer's steps, such as Settings > Network & internet > SIMs on Pixel phones. The compatibility guide links to both.

Install over reliable Wi-Fi and save the setup instructions before travelling, whether they arrive as a QR code or an app link. Follow those instructions for activation and the start of validity; installation alone does not tell you when the plan begins, and that trigger is not confirmed here, so don't treat 'instant installation' as a start-time guarantee. On arrival in Japan, select the travel line for mobile data.

WhatsApp, YouTube and other app accounts can run over this data connection. The plan gives you no local phone number and no standard calls or SMS. Verification texts from your bank still rely on your regular SIM and home carrier, so watch for its roaming charges.

The listed networks support hotspot. Any device you connect draws from the same data allowance. Every device on the data hotspot or tethering link draws from the same allowance. Pause automatic backups and system updates if you want to reserve data for travel tasks.

These are fixed total allowances, not unlimited data, and they are not monthly subscriptions. The data you buy is shared across the entire validity period and does not renew every day. A 30-day plan is not the same as one month. This catalog has no 1 day plan; the shortest lasts a full week. Even a one day trip needs a 7-day package if you want data during those hours. Pick a validity that covers the whole stay and a data amount that matches your usage.

These offers cover Japan only. Don't assume a neighbouring country, an international transit stop or a ship or aircraft connection is included. Check the country list of any separate plan for onward travel.

Confirm you are in Japan, the eSIM is enabled and chosen for data, and the plan still has data and validity left. Apply the supplied roaming and APN settings to that line, then toggle airplane mode briefly or restart. Move elsewhere if reception is weak, and keep the eSIM installed when you contact support.

Set the travel eSIM as the data line, disable automatic data switching and keep data roaming off on your home SIM. Apply any roaming setting the travel eSIM needs only to that line. Calls or texts on your usual number can still trigger home-carrier charges.

Top up, extension and refund options are not confirmed here and depend on the purchase conditions supplied with your order, so read those before you buy. A 'no contract' search result does not replace reading those terms. A separate new plan does not automatically extend the old one or carry unused data forward. Keep your order reference, device model and installation details ready for support.

Yes. Use the connection to check routes and manage bookings online, but pay the fare and get any required reservation separately. Check card acceptance with the operator for each journey; a card valid on a local service is not proof it covers an intercity train.