FAQ
Frequently Asked Questions
What is eSIMStar?
What is an eSIM and how does it work?
Why choose eSIMStar for your travel data plan?
Is my device compatible with eSIM cards?
Can I use multiple eSIMs or switch between regions?
FAQ
What is eSIMStar?
What is an eSIM and how does it work?
Why choose eSIMStar for your travel data plan?
Is my device compatible with eSIM cards?
Can I use multiple eSIMs or switch between regions?
Check out our wide range of plans in Japan.
Japan • Instant activation • No ID required
Speed
4G / 5G / LTE
Coverage
Japan
Validity & Usage Period
eSIM valid for 90 days from purchase. You must activate within this period.
Data Packages
Activation
Immediate or when you choose
ID Required
No
Analog Calls
Not available
Phone Number
Not applicable
Hotspot
Yes
SMS
No
Compatibility
eSIM-capable devices
Delivery
In-app(coming soon✈️), on the web, or via email (QR)
Japan travel runs on timing. Trains, station exits, reservations, and meet-ups all move fast, and mobile data keeps you confident instead of guessing. A Japan travel eSIM is travel-ready, installs before you fly, and gives you data without swapping a physical SIM so you can navigate, message, and book on the go.
Why Japan is easier when your data works instantly
You’ll use mobile data for navigation through stations, route changes, bookings, translation, and messaging. In Japan, even small delays can snowball if you’re not connected.
A travel eSIM removes arrival friction. Install on Wi-Fi before departure, then switch to it for Mobile Data after landing.
Japan eSIM setup tips (and the #1 fix if data doesn’t show)
Set the eSIM as your Mobile Data line, enable roaming for the eSIM if required, and wait a moment for it to attach.
If data doesn’t connect quickly, toggle Airplane Mode for 10 seconds. In dense city areas, manual network selection can help if your phone keeps hunting.
Choosing data for Japan travel
Small packs work for maps and messaging. If you’ll stream, upload content daily, or hotspot, choose a bigger plan so you’re not rationing data.
Quick FAQ
Is a Japan eSIM good for navigating train stations and transit apps?
Yes. Mobile data is ideal for maps, transport timing, station navigation, and keeping bookings accessible while you move.
Do I need an unlocked phone for Japan eSIM?
Yes. Your phone must be eSIM-capable and carrier-unlocked.
Is Japan eSIM data-only?
Most travel eSIMs are data-only; use apps for calls and messaging.
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PriceA$42.00
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