Japan Travel eSIM

Prepaid data for your trip to Japan. Choose your plan, install on a compatible unlocked device, and connect when you arrive.

  • Instant eSIM delivery
  • No overage charges
  • Full-speed data first; reduced-speed where included
  • Top ups available
  • Compatible unlocked devices

Travel data made simple

Choose your plan, receive your eSIM details, and connect when you arrive.

  • 1 Choose your Japan eSIM plan.
  • 2 Receive your eSIM details after purchase.
  • 3 Install on a compatible unlocked device.
  • 4 Connect when you land in Japan.
  • 5 Keep your M-Mobile eSIM and add another compatible plan for a future trip.

Choose your Japan plan

Pick the data amount and duration that fit your trip. Your price updates automatically before you add the plan to cart.

Japan

Choose your eSIM option, data amount, and duration. Your price updates automatically before you add the plan to cart.

  • Instant eSIM delivery
  • No overage charges
  • Top ups available through the M-Mobile M-Portal
  • Works on compatible unlocked devices

Data that keeps going

Use your full-speed data first, then continue at reduced speeds where included — with no overage charges.

  • Full-speed data first for maps, rides, messaging, tickets, and travel apps.
  • Reduced-speed data where included helps keep essentials connected after your full-speed data is used.
  • Top up through the M-Mobile M-Portal if you need more full-speed data.
Select SIM type
Choose eSIM for instant digital delivery.
Select data amount
Pick the amount of full-speed data for your trip.
Select duration
Choose how long you need the plan to stay active.

Includes full-speed data first, reduced-speed data where included, and no overage charges.

  • Secure checkout
  • Instant eSIM delivery
  • No overage charges
  • Unlocked eSIM device required

Plans require a compatible unlocked device. Availability can vary by selected option.

One eSIM. More trips.

Keep your M-Mobile eSIM after this trip and add another compatible plan in the future. Availability depends on destination and SIM compatibility.

Frequently asked questions

Clear answers before customers purchase their Japan eSIM.

When does my plan start?

Your plan starts once you arrive in Japan and connect to a supported network, unless your specific plan states otherwise.

Does my device need to support eSIM?

Yes. Your device must be unlocked and eSIM-compatible. Please check compatibility before purchasing.

Does the plan include a phone number?

All M-Mobile eSIM plans are data-only and do not include a traditional phone number.

Can I top up my plan?

Eligible plans can be topped up through the M-Mobile M-Portal. Plan availability and top-up options may vary.

What happens when I use my full-speed data?

Where a plan includes continued data at reduced speeds, your service continues at reduced speeds after the full-speed allotment is used until the plan expires, unless stated otherwise.

Planning your trip to Japan?

Explore destination tips, travel data guidance, and more on our Connected Travel Blog.

Read more about Japan

Ready for Japan?

Choose your Japan travel eSIM plan and get connected when you land.

Coverage, speeds, and performance may vary by location, device, network conditions, and environmental factors. Plans require a compatible unlocked device. Taxes, fees, and optional add-ons may be extra.