Best eSIM for Japan โ Instant Data Plans
Planning a trip to Japan? An eSIM is the fastest, cheapest way to get data the moment you land โ no queues, no Japanese-language SIM kiosks, no roaming shock.
Your calls stay on your home number.
Your data runs on LTE.app.
Most modern iPhones and Android phones support two connections at once. Keep your existing SIM active โ your number never changes, your apps keep working. Just add a Japan data plan on top.
- โ Calls and texts work normally
- โ WhatsApp, iMessage unchanged
- โ Bank 2FA still arrives
- โ Nothing to cancel or port
- โ Full 4G / 5G speeds
- โ Hotspot included
- โ Activates the moment you land
- โ From $1.84 โ not $10โ15/day
- โ ~$10โ15 per day, every day
- โ Throttled after 512 MB
- โ No hotspot on most plans
- โ Bill shock when you get home
Available Plans (20)
LocalWhy LTE.app
Best eSIM for Japan โ what you need to know
Planning a trip to Japan? An eSIM is the fastest, cheapest way to get data the moment you land โ no queues, no Japanese-language SIM kiosks, no roaming shock.
LTE.app offers 20 eSIM plans for Japan, starting from $1.84. Plans are instant โ purchase, scan the QR code in Settings, and your data is live. No physical SIM, no airport queue, no contract.
Coverage is provided through NTT Docomo and SoftBank and au KDDI, giving you data across Tokyo, Osaka, Kyoto and beyond. Japan has world-class LTE and 5G โ expect 30โ150 Mbps across cities and reliable coverage even on Shinkansen bullet trains.
Why use an eSIM in Japan?
Japan eSIM coverage & networks
LTE.app plans in Japan route through NTT Docomo, SoftBank, au KDDI. Japan has world-class LTE and 5G โ expect 30โ150 Mbps across cities and reliable coverage even on Shinkansen bullet trains.
Major destinations covered include Tokyo, Osaka, Kyoto, Hiroshima, and Sapporo. Urban areas and popular tourist sites generally have reliable 4G LTE; rural and mountainous areas may vary.
More questions about Japan eSIMs
Does the eSIM work as a hotspot in Japan?+
Most LTE.app Japan plans support mobile hotspot (tethering), so you can share data with a travel companion or laptop.
Does the Japan eSIM include a phone number?+
LTE.app eSIMs for Japan are data-only โ they don't include a Japanese phone number. Keep your home SIM for calls.
Which network will my eSIM use in Japan?+
LTE.app plans in Japan use NTT Docomo and SoftBank and au KDDI. The network your device connects to depends on your plan and device compatibility.
Can I top up or extend my Japan eSIM?+
Some plans allow top-ups or extensions from within the LTE.app. If you run out of data, you can purchase an additional plan โ the new eSIM will be delivered instantly as a QR code.
Travelling nearby?
Extend your trip or compare plans for neighbouring destinations.
South Korea eSIM โ
Taiwan eSIM โ
Hong Kong eSIM โ
China eSIM โWhat you need to know
This eSIM provides data access only. It does not include a Japan phone number. Use WhatsApp, FaceTime, or Signal for calls.
Set up the eSIM at home over Wi-Fi before your trip. Data only starts counting once you connect to a local network on arrival.
Mobile hotspot is available on most Japan plans. Share your data with a laptop or travel companion without extra cost.
Your phone must be eSIM-compatible and carrier-unlocked. Most iPhones from 2018 and flagship Android phones from 2020 support eSIM.
Your QR code is emailed the moment your payment completes โ no waiting, no shipping, no airport queue.
How to install your Japan eSIM
Note for Japan: Install before you fly โ you can set up the eSIM at home over Wi-Fi and activate it automatically when you land.
Full install guide with screenshots โLove the price? The savings don't stop when you land home.
Pro and Premium subscribers save up to 12% on every plan they ever buy โ whether they're in Japan next week or somewhere else next year. One membership. Every destination.
Frequently Asked Questions
Need help choosing?
Ask Smart Coach about the best eSIM plans for Japan, compare carriers, get installation help, and more.
Japan travel connectivity
All Japan pages โ linked for faster research