3GB
Price€4.49one-off
Networks may include NTT docomo, Rakuten Mobile, KDDI/au.
Mobile data plan.
Validity starts on first connection to a supported destination network. You can install before travel.
10GB
Price€10.99€8.99one-off
Networks may include NTT docomo, Rakuten Mobile, KDDI/au.
Mobile data plan.
Validity starts on first connection to a supported destination network. You can install before travel.
20GB
Price€19.49€15.49one-off
Networks may include NTT docomo, Rakuten Mobile, KDDI/au.
Mobile data plan.
Validity starts on first connection to a supported destination network. You can install before travel.
Depending on the selected plan, supported networks may include:
Network access depends on the selected plan, your location and local availability. A displayed logo identifies a supported network only.
Eastern Asia · Asia
suitcase.ie’s current Japan catalogue identifies 4 supported networks. Current supplier data lists NTT docomo, Rakuten Mobile, KDDI/au and SoftBank. Available plans identify Up to 5G. Japan is grouped in Eastern Asia by the cited official geography source.
No destination-specific geographic limitation is published without a verified source. As with all mobile services, signal strength varies by location, network conditions and device.
Actual service depends on the selected plan, location, network conditions, congestion and device. Supplier-listed technology describes supported access, not guaranteed speed or nationwide coverage.
Connectivity information last reviewed: September 2026. Geographic classification: United Nations Statistics Division.
For travel in Japan, part of Eastern Asia, current plans provide 3–20GB of data for 15–30 days. Use it for maps, messaging, translation, transport information and digital travel bookings; actual consumption depends on the apps and settings used. Validity starts on first connection to a supported destination network. You can install before travel. A compatible dual-SIM phone can keep the existing SIM active while suitcase.ie is selected for mobile data.
A suitcase.ie Japan eSIM gives you mobile data on supported local networks without replacing your physical SIM. There are currently 3 purchasable options, with prices, allowances, validity and activation rules shown on this page.
Light use · maps and messaging
View this current planBest for most trips · maps, messaging and social media
View this current planHeavy use · frequent video or higher data needs
View this current planCurrent suitcase.ie Japan plans list NTT docomo, Rakuten Mobile, KDDI/au and SoftBank. The network available depends on the selected plan, location and local conditions.
Current supplier data identifies Up to 5G across the available Japan plans. This is a plan capability, not a guarantee of coverage or speed at every location.
The closest current option to 5GB for seven days is 10GB valid for 30 days at €8.99. Choose by the allowance and validity shown in the live plan table.
Validity starts on first connection to a supported destination network. You can install before travel.
The current Japan benchmark averages valid published rates from 2 Irish operators for 5GB over seven days. The dated provider observations and methodology are shown on this page.
Coverage and network generation vary by location and device. Keep offline directions for your first journey as a practical backup.
Check your phone and return to this plan →Validity starts on first connection to a supported destination network. You can install before travel.
Supported networks may include NTT docomo, Rakuten Mobile, KDDI/au. Local coverage and speed vary.
€8.99 one-off. Checkout verifies it again before payment.
Turn trip length and everyday phone habits into a transparent estimate, then return to suitable Japan plans.
Use the calculatorSearch verified device records and confirm that your phone is network unlocked before purchase.
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