eSIM Japan
Instant data plans for Japan. No contracts, no hidden fees.
100MB
7 Days
€2.99
one-time
500MB
1 Day
€2.99
one-time
500MB
7 Days
€2.99
one-time
1GB
1 Day
€2.99
one-time
1GB
7 Days
€2.99
one-time
1GB
30 Days
€5.99
one-time
1GB
365 Days
€9.99
one-time
2GB
1 Day
€2.99
one-time
3GB
1 Day
€3.99
one-time
3GB
15 Days
€2.99
one-time
3GB
30 Days
€2.99
one-time
5GB
1 Day
€4.99
one-time
5GB
30 Days
€3.99
one-time
10GB
1 Day
€6.99
one-time
10GB
30 Days
€6.99
one-time
20GB
30 Days
€11.99
one-time
20GB
90 Days
€58.99
one-time
50GB
30 Days
€23.99
one-time
50GB
180 Days
€39.99
one-time
Coverage in Japan
Supported networks
vs. local SIM card
A local SIM in Japan typically costs ¥3000-5000 at airport. Plus the hassle of finding a store, passport requirements, and language barriers.
Skip the hassle — get your eSIM before you fly.
Roaming Costs vs roamsim
Carrier Roaming
€15-25/MB with most international carriers
Typical cost when roaming in Japan with your home carrier
roamsim eSIM
From €2.99
Save 90%+Prepaid data plan with no hidden fees or surprise charges
Network Coverage in Japan
Coverage Quality
Outstanding 4G/5G coverage in cities and towns. Japan has one of the world's best mobile networks. Even rural areas and bullet trains have good signal.
Supported Networks
Frequently Asked Questions about eSIM in Japan
Absolutely. Japan has limited free Wi-Fi and buying a local SIM requires ID registration. An eSIM is the fastest, easiest way to get connected in Japan.
Yes. Japan's bullet trains have mobile coverage along most routes. You'll be able to use maps, messaging, and browse at speeds up to 300 km/h.
Japan is one of the most expensive countries for roaming at €15-25 per MB. An eSIM can save you hundreds during a typical week-long trip.
Yes, and you'll want to. Google Maps is essential for navigating Japan's complex train system. With an eSIM, you get real-time transit directions in Japanese and English.