For directions, coordination, video and work on the move.
Navigation
Keep routes, public transport and saved places current
Messaging
Stay reachable for your group, hotel and family
Video
Share clips or make a short video call
Hotspot
Connect a laptop or tablet when your plan allows it
Real experiences with mySIM24
5.0/58 approved customer reviews
“Set up in two minutes — I was online before leaving the plane. No more roaming shock!”
Lena M.
Backpacker
“One plan for all of Europe, stable connection and a fair price. Exactly what I need on trips.”
Tobias K.
Business traveller
“The QR code arrived instantly. Super easy, clean app, great support. Highly recommend!”
Aylin S.
Digital nomad
Japan eSIM: get online the moment you land
With a mySIM24 eSIM for Japan you're online the moment you land, with no SIM card swap or expensive roaming fees. Choose your trip length, pay securely and install the eSIM in minutes via QR code. It activates automatically once you connect to a local network.
Tokyo’s metro, Kyoto’s temples and the Shinkansen: in Japan navigation and translation apps are central to daily life - and mobile data saves you the pricey pocket Wi-Fi.
How much data do I need in Japan?
How much data you need for Japan depends on how you use your phone. As a rule of thumb:
Light
1-3 GB
Maps, messaging, the occasional email. Great for short trips.
Standard
5-10 GB
Social media, navigation, sharing photos and some music for 1-2 weeks.
Heavy
20 GB+
Streaming, video calls, hotspot/remote work or long journeys.
Not sure? Use the plan finder to find the right plan by trip length and data needs in seconds. If you run low, many plans can simply be topped up.
Network coverage & good to know
In Japan your eSIM automatically connects to the strongest available partner network, typically 4G/LTE or 5G in cities and tourist areas. Coverage can vary in very remote regions. After installing, enable data roaming for the eSIM profile. This is normal and incurs no extra cost because you are using your booked plan. Tip: install the eSIM over Wi-Fi before departure so you are online when you land.
Japan has one of the world’s best networks - nationwide 4G/5G, even on the bullet train. Check device compatibility in advance, as some older models have quirks in Japan.
Frequently asked questions
Does an eSIM for Japan work instantly?
Yes. You receive the QR code by email and in your account right after purchase. Install it before you travel. It activates automatically once you connect to a network in Japan.
How much does an eSIM for Japan cost?
Data plans for Japan start at 2,50 €. You only pay for the data you need, with no contract or hidden roaming fees.
How do I install the eSIM?
Scan the QR code in your device settings, or install it on iPhone with one tap. See our install guide for step-by-step instructions.
Is my phone eSIM-compatible?
Most phones from 2018 onward (iPhone XS/XR, Samsung Galaxy S20, Google Pixel 3 and newer) support eSIM. Check your model on our compatibility page.
Can I top up the Japan eSIM?
Many plans let you add more data right from your account with no reinstall needed. If a plan can't be topped up, simply book a new Japan plan.
How long is the Japan eSIM valid?
Validity depends on the plan you choose (e.g. 7, 15 or 30 days). The clock starts when the eSIM first connects to a network in Japan, not at purchase.
Can I use a hotspot (tethering) with the eSIM?
Yes. You can share your data via personal hotspot with a laptop or tablet. This is handy if you work on the go in Japan.
Do I keep my normal phone number in Japan?
Yes. The eSIM is a data-only plan running alongside your main SIM. Your home number stays reachable for calls, SMS and WhatsApp. Only mobile data runs over the eSIM.
